MONTANA
Climate Normals (1971-2000)
other states
 
City:ALBION 1 N             
State:MT
Lat:45.13N
Long:104.16W
Elev: 3312
ID:240088
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.9   8.3  17.7  28.7  39.2  48.6  53.9  51.9  39.7  28.5  15.6   4.8  28.2
Maximum     27.9  33.9  43.2  55.6  66.1  76.3  85.1  84.7  73.3  59.4  41.1  31.8  56.5
Mean        14.9  21.1  30.5  42.2  52.7  62.5  69.5  68.3  56.5  44.0  28.4  18.3  42.4
Precip.     0.29  0.31  0.52  1.55  2.59  2.79  1.92  1.44  0.98  1.12  0.48  0.32 14.31
HDD         1552  1230  1072   686   389   147    52    66   284   652  1100  1447  8677
CDD            0     0     0     0     6    71   192   168    28     0     0     0   465
City:ALDER 17 S             
State:MT
Lat:45.04N
Long:112.03W
Elev: 5850
ID:240110
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.6  16.9  22.7  28.4  35.8  42.6  47.2  46.7  38.7  30.8  20.9  14.0  29.9
Maximum     31.9  36.5  43.2  52.0  60.7  69.4  78.0  77.3  67.4  56.1  40.1  32.1  53.7
Mean        22.8  26.7  33.0  40.2  48.3  56.0  62.6  62.0  53.1  43.5  30.5  23.1  41.8
Precip.     0.37  0.33  0.74  1.11  2.34  2.39  1.54  1.47  1.27  1.05  0.59  0.39 13.59
HDD         1309  1072   994   744   520   280   123   152   366   667  1036  1300  8563
CDD            0     0     0     0     0    11    48    59     8     0     0     0   126
City:ANACONDA               
State:MT
Lat:46.08N
Long:112.57W
Elev: 5280
ID:240199
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.1  16.5  22.1  28.3  35.7  42.7  46.8  46.3  38.0  30.0  20.1  13.1  29.4
Maximum     35.2  39.9  46.6  55.3  64.2  72.8  80.4  80.5  70.2  58.4  42.5  34.9  56.7
Mean        24.2  28.2  34.4  41.8  50.0  57.8  63.6  63.4  54.1  44.2  31.3  24.0  43.1
Precip.     0.58  0.46  1.04  1.17  1.85  1.93  1.43  1.47  1.14  0.84  0.84  0.63 13.38
HDD         1267  1030   951   695   466   234   119   124   342   644  1012  1271  8155
CDD            0     0     0     0     0    16    77    73    15     0     0     0   181
City:AUGUSTA                
State:MT
Lat:47.30N
Long:112.24W
Elev: 4070
ID:240364
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.7  15.7  22.1  29.6  37.8  45.3  49.0  47.7  39.5  31.5  21.8  14.1  30.5
Maximum     35.5  41.0  47.6  57.0  65.6  73.8  81.2  81.1  71.4  60.7  43.8  36.7  58.0
Mean        23.6  28.4  34.9  43.3  51.7  59.6  65.1  64.4  55.5  46.1  32.8  25.4  44.2
Precip.     0.51  0.43  0.65  1.17  2.55  2.25  1.45  1.51  1.28  0.85  0.54  0.56 13.75
HDD         1283  1027   934   651   413   192    89   111   307   586   967  1226  7786
CDD            0     0     0     0     1    28    92    92    20     0     0     0   233
City:AUSTIN 1 W             
State:MT
Lat:46.38N
Long:112.16W
Elev: 4790
ID:240375
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.7  15.8  21.4  28.5  35.8  42.6  47.5  46.9  38.9  31.1  20.5  13.2  29.5
Maximum     27.9  33.5  42.0  52.5  61.6  70.1  78.0  77.1  65.8  52.6  35.5  28.4  52.1
Mean        19.8  24.7  31.7  40.5  48.7  56.4  62.8  62.0  52.4  41.9  28.0  20.8  40.8
Precip.     1.05  0.78  0.98  1.40  2.44  2.07  1.69  1.48  1.41  1.12  1.18  1.08 16.68
HDD         1402  1131  1033   736   505   273   135   155   392   717  1111  1370  8960
CDD            0     0     0     0     0    12    65    62    12     0     0     0   151
City:BABB 6 NE              
State:MT
Lat:48.56N
Long:113.22W
Elev: 4300
ID:240392
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.0  13.0  19.6  27.6  35.1  41.4  44.9  44.1  36.5  30.2  19.4  11.5  27.7
Maximum     33.0  37.4  43.6  53.5  63.0  70.3  76.6  76.8  66.9  56.7  41.6  33.9  54.4
Mean        21.0  25.2  31.6  40.6  49.1  55.9  60.8  60.5  51.7  43.5  30.5  22.7  41.1
Precip.     0.64  0.58  0.88  1.24  2.94  3.02  2.03  2.08  1.72  0.93  0.88  0.80 17.74
HDD         1365  1115  1036   733   495   281   160   177   411   668  1036  1310  8787
CDD            0     0     0     0     0     6    28    36    12     0     0     0    82
City:BAKER 1 E              
State:MT
Lat:46.22N
Long:104.16W
Elev: 2940
ID:240412
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.51  0.39  0.61  1.40  2.09  2.85  1.72  1.21  1.37  1.29  0.51  0.43 14.38
City:BALLANTINE             
State:MT
Lat:45.57N
Long:108.09W
Elev: 3000
ID:240432
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.0  13.3  21.8  31.2  40.8  49.4  53.7  51.8  41.0  30.6  18.4   9.5  30.7
Maximum     33.7  41.2  50.8  61.2  70.7  81.3  89.2  88.6  76.8  64.1  46.4  36.5  61.7
Mean        20.4  27.3  36.3  46.2  55.8  65.4  71.5  70.2  58.9  47.4  32.4  23.0  46.2
Precip.     0.60  0.46  0.84  1.61  2.37  2.07  1.20  1.06  1.44  1.21  0.70  0.59 14.15
HDD         1384  1057   891   564   301    97    23    47   225   548   978  1301  7416
CDD            0     0     0     0    14   107   223   207    42     0     0     0   593
City:BARBER                 
State:MT
Lat:46.19N
Long:109.22W
Elev: 3730
ID:240466
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.4  14.1  20.9  29.3  38.3  46.5  51.2  49.5  40.5  30.6  19.0  11.9  30.2
Maximum     36.6  41.8  49.0  58.7  67.5  75.8  82.5  81.3  71.6  62.0  45.6  37.9  59.2
Mean        23.5  28.0  35.0  44.0  52.9  61.2  66.9  65.4  56.1  46.3  32.3  24.9  44.7
Precip.     0.50  0.32  0.55  1.07  2.13  2.06  1.55  1.28  1.02  0.88  0.46  0.42 12.24
HDD         1288  1037   932   631   378   160    66    89   288   581   982  1243  7675
CDD            0     0     0     0     2    45   124   101    18     0     0     0   290
City:BELGRADE AP (BOZEMAN)  
State:MT
Lat:45.48N
Long:111.09W
Elev: 4427
ID:240622
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.6  13.5  21.0  29.0  37.1  43.8  48.8  47.6  38.5  28.8  17.1   8.0  28.4
Maximum     29.6  36.1  44.6  55.1  64.4  74.2  83.6  82.9  70.7  57.8  40.3  30.6  55.8
Mean        18.6  24.8  32.8  42.1  50.8  59.0  66.2  65.3  54.6  43.3  28.7  19.3  42.1
Precip.     0.60  0.54  1.02  1.40  2.49  2.41  1.19  1.14  1.43  1.11  0.81  0.57 14.71
HDD         1439  1125   997   687   443   207    80    95   326   674  1089  1416  8578
CDD            0     0     0     0     1    25   116   103    14     0     0     0   259
City:BELLTOWER              
State:MT
Lat:45.38N
Long:104.23W
Elev: 3320
ID:240636
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.62  0.45  0.68  1.28  2.44  2.62  1.84  1.04  1.14  1.09  0.55  0.57 14.32
City:BIDDLE                 
State:MT
Lat:45.06N
Long:105.20W
Elev: 3329
ID:240739
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.43  0.26  0.65  1.34  2.34  2.39  1.79  1.09  1.16  1.25  0.38  0.32 13.40
City:BIDDLE 8 SW            
State:MT
Lat:45.02N
Long:105.29W
Elev: 3597
ID:240743
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.3  13.0  20.6  29.5  39.0  48.4  54.5  52.7  42.0  31.1  18.7   9.7  30.5
Maximum     33.1  39.2  47.8  58.3  68.0  78.3  86.7  86.2  74.4  61.2  44.3  34.9  59.4
Mean        20.2  26.1  34.2  43.9  53.5  63.4  70.6  69.5  58.2  46.2  31.5  22.3  45.0
Precip.     0.46  0.41  0.85  1.56  2.55  2.58  1.60  0.97  1.38  1.26  0.59  0.51 14.72
HDD         1389  1089   955   634   366   138    41    60   244   585  1005  1324  7830
CDD            0     0     0     0    10    88   215   197    40     0     0     0   550
City:BIGFORK 13 S           
State:MT
Lat:47.53N
Long:114.02W
Elev: 2910
ID:240755
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     22.0  24.0  28.7  34.6  41.1  47.7  53.0  53.0  44.1  37.0  29.5  24.1  36.6
Maximum     33.3  37.7  45.6  55.6  64.3  71.6  79.7  79.5  69.0  56.4  41.6  34.3  55.7
Mean        27.7  30.9  37.2  45.1  52.7  59.7  66.4  66.3  56.6  46.7  35.6  29.2  46.2
Precip.     1.64  1.18  1.44  1.62  2.94  2.76  1.72  1.61  1.82  1.47  1.75  1.92 21.87
HDD         1158   956   864   598   384   186    77    78   278   568   883  1110  7140
CDD            0     0     0     0     2    26   119   118    23     0     0     0   288
City:BIG SANDY              
State:MT
Lat:48.08N
Long:110.04W
Elev: 2770
ID:240770
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      4.5  10.5  20.1  29.2  38.6  45.5  50.0  48.1  38.1  28.4  16.5   7.5  28.1
Maximum     30.1  37.5  48.7  61.0  70.8  79.2  86.7  86.3  74.7  62.2  43.7  33.5  59.5
Mean        17.3  24.0  34.4  45.1  54.7  62.4  68.4  67.2  56.4  45.3  30.1  20.5  43.8
Precip.     0.56  0.34  0.60  1.13  2.46  2.58  1.64  1.35  1.38  0.75  0.49  0.54 13.82
HDD         1479  1149   949   599   328   135    60    86   287   611  1047  1380  8110
CDD            0     0     0     1     9    62   163   160    29     0     0     0   424
City:BIG SKY 2 WNW          
State:MT
Lat:45.17N
Long:111.19W
Elev: 6590
ID:240775
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      6.0   8.2  14.7  21.6  29.1  35.5  39.6  38.2  31.6  24.0  13.7   6.7  22.4
Maximum     30.1  36.0  42.7  50.0  60.5  69.7  78.4  78.4  68.2  56.2  38.6  30.2  53.3
Mean        18.1  22.1  28.7  35.8  44.8  52.6  59.0  58.3  49.9  40.1  26.2  18.5  37.8
Precip.     1.59  1.20  1.26  1.11  2.65  3.03  1.43  1.56  1.88  1.55  1.67  1.54 20.47
HDD         1455  1201  1125   876   627   376   205   223   453   773  1167  1442  9923
CDD            0     0     0     0     0     3    20    14     1     0     0     0    38
City:BIG TIMBER             
State:MT
Lat:45.50N
Long:109.57W
Elev: 4100
ID:240780
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.3  17.5  22.8  30.6  39.3  47.4  52.1  50.8  41.0  31.9  23.0  16.0  32.1
Maximum     34.8  40.5  47.6  56.2  66.6  77.0  84.8  84.5  72.3  59.7  43.8  36.0  58.7
Mean        24.1  29.0  35.2  43.4  53.0  62.2  68.5  67.7  56.7  45.8  33.4  26.0  45.4
Precip.     0.65  0.50  0.93  1.79  2.79  2.60  1.54  1.25  1.28  1.37  0.72  0.69 16.11
HDD         1269  1009   924   648   376   140    49    62   274   595   948  1209  7503
CDD            0     0     0     0     2    56   156   144    24     0     0     0   382
City:BILLINGS WATER PLANT   
State:MT
Lat:45.46N
Long:108.29W
Elev: 3097
ID:240802
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.3  18.3  25.4  33.8  43.1  51.2  56.2  54.8  44.9  35.3  24.0  15.8  34.7
Maximum     37.3  44.2  53.2  62.7  71.7  81.1  88.4  87.8  77.1  65.3  47.9  39.1  63.0
Mean        25.3  31.3  39.3  48.3  57.4  66.2  72.3  71.3  61.0  50.3  36.0  27.5  48.9
Precip.     0.62  0.49  0.87  1.55  2.39  1.98  1.19  0.92  1.42  1.32  0.64  0.57 13.96
HDD         1230   946   798   505   253    81    17    31   174   456   872  1164  6527
CDD            0     0     0     2    17   115   244   226    54     0     0     0   658
City:BILLINGS INTL AP       
State:MT
Lat:45.48N
Long:108.33W
Elev: 3567
ID:240807
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     15.1  20.1  26.4  34.7  44.0  52.5  58.3  57.3  47.1  37.2  25.6  17.7  36.3
Maximum     32.8  39.5  47.6  57.5  67.4  78.0  85.8  84.5  71.8  58.9  42.7  34.5  58.4
Mean        24.0  29.8  37.0  46.1  55.7  65.2  72.0  70.9  59.5  48.1  34.1  26.1  47.4
Precip.     0.81  0.57  1.12  1.74  2.48  1.89  1.28  0.85  1.34  1.26  0.75  0.67 14.77
HDD         1280  1001   876   575   312    90    20    25   205   516   909  1195  7004
CDD            0     0     0     2    13    90   227   204    44     3     0     0   583
City:BIRNEY                 
State:MT
Lat:45.19N
Long:106.31W
Elev: 3160
ID:240819
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.1  11.6  20.8  29.5  39.3  48.0  52.4  50.1  39.7  29.3  17.4   7.0  29.2
Maximum     35.0  42.5  52.3  63.1  73.1  82.8  90.8  89.9  78.1  64.9  46.2  36.5  62.9
Mean        20.1  27.1  36.6  46.3  56.2  65.4  71.6  70.0  58.9  47.1  31.8  21.8  46.1
Precip.     0.59  0.39  0.85  1.40  2.20  2.46  1.32  0.95  1.04  1.07  0.76  0.54 13.57
HDD         1394  1063   882   561   286    95    21    39   222   555   997  1340  7455
CDD            0     0     0     0    13   108   227   193    39     0     0     0   580
City:BLACKLEAF              
State:MT
Lat:48.01N
Long:112.26W
Elev: 4235
ID:240877
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.6  12.8  19.6  27.8  35.7  42.7  46.7  45.1  37.0  28.3  18.2  10.7  27.8
Maximum     34.3  38.6  44.4  54.1  62.6  70.3  78.2  78.4  68.1  58.1  42.5  35.6  55.4
Mean        21.5  25.7  32.0  41.0  49.2  56.5  62.5  61.8  52.6  43.2  30.4  23.2  41.6
Precip.     0.51  0.45  0.68  1.15  2.32  2.77  1.51  1.78  1.17  0.61  0.52  0.52 13.99
HDD         1350  1100  1024   721   491   269   141   172   391   676  1041  1297  8673
CDD            0     0     0     0     0    13    61    71    18     0     0     0   163
City:BLOOMFIELD 5 NNE       
State:MT
Lat:47.32N
Long:104.52W
Elev: 2680
ID:240923
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.9   9.7  18.6  28.7  39.0  47.9  52.1  50.7  40.4  29.4  17.0   6.6  28.5
Maximum     24.0  31.7  43.5  57.0  68.9  78.4  84.9  84.8  72.4  58.9  39.1  28.2  56.0
Mean        13.0  20.7  31.1  42.9  54.0  63.2  68.5  67.8  56.4  44.2  28.1  17.4  42.3
Precip.     0.20  0.11  0.34  0.73  1.94  2.53  1.91  1.25  1.18  0.62  0.32  0.18 11.31
HDD         1613  1240  1053   666   354   137    51    83   286   647  1109  1475  8714
CDD            0     0     0     0    11    82   160   168    28     0     0     0   449
City:BOULDER                
State:MT
Lat:46.14N
Long:112.07W
Elev: 4904
ID:241008
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.9  13.9  19.9  26.3  34.3  41.8  46.8  45.5  36.4  27.5  17.9  10.7  27.6
Maximum     34.3  39.5  46.6  55.8  64.6  73.8  82.2  82.0  71.4  59.6  42.1  34.6  57.2
Mean        22.1  26.7  33.3  41.1  49.5  57.8  64.5  63.8  53.9  43.6  30.0  22.7  42.4
Precip.     0.40  0.30  0.52  0.76  1.99  1.94  1.51  1.43  1.06  0.61  0.56  0.43 11.51
HDD         1331  1074   985   719   482   238   113   120   346   665  1050  1313  8436
CDD            0     0     0     0     0    22    97    82    12     0     0     0   213
City:BOZEMAN MONTANA ST UNIV
State:MT
Lat:45.40N
Long:111.03W
Elev: 4913
ID:241044
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.9  18.1  24.1  31.4  39.4  46.4  51.9  50.7  42.1  33.2  22.3  14.6  32.3
Maximum     33.4  38.6  46.0  55.5  64.5  73.7  81.8  81.7  71.0  59.0  41.8  34.1  56.8
Mean        23.7  28.4  35.1  43.5  52.0  60.1  66.9  66.2  56.6  46.1  32.1  24.4  44.6
Precip.     0.84  0.70  1.40  2.06  3.22  2.85  1.44  1.48  1.80  1.61  1.10  0.79 19.29
HDD         1283  1027   928   647   407   183    66    72   280   587   989  1260  7729
CDD            0     0     0     0     2    36   124   109    27     0     0     0   298
City:BOZEMAN 6 W EXP FARM   
State:MT
Lat:45.41N
Long:111.09W
Elev: 4775
ID:241047
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.0  16.5  22.9  30.1  37.8  44.2  48.8  47.6  39.7  31.5  20.4  12.5  30.3
Maximum     33.2  38.7  46.5  56.3  65.3  73.9  81.8  81.6  71.2  58.9  41.8  33.9  56.9
Mean        22.6  27.6  34.7  43.2  51.6  59.1  65.3  64.6  55.5  45.2  31.1  23.2  43.6
Precip.     0.55  0.54  1.10  1.61  2.81  2.52  1.50  1.36  1.59  1.36  0.89  0.62 16.45
HDD         1314  1047   939   654   418   198    84   100   303   614  1017  1296  7984
CDD            0     0     0     0     1    20    93    87    15     0     0     0   216
City:BOZEMAN 12 NE          
State:MT
Lat:45.49N
Long:110.53W
Elev: 5950
ID:241050
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.8  12.4  17.7  24.4  31.6  37.5  40.8  39.3  33.2  26.8  17.6  10.3  25.1
Maximum     32.8  36.6  41.9  49.2  58.2  66.9  74.8  75.0  64.6  54.0  39.3  33.0  52.2
Mean        21.3  24.5  29.8  36.8  44.9  52.2  57.8  57.2  48.9  40.4  28.5  21.7  38.7
Precip.     2.56  1.72  2.55  3.54  4.70  4.37  2.29  2.38  2.73  2.57  2.54  2.18 34.13
HDD         1355  1134  1092   845   623   385   236   253   484   763  1097  1344  9611
CDD            0     0     0     0     0     1    13    10     1     0     0     0    25
City:BRADY 27 ENE THE KNEES 
State:MT
Lat:48.05N
Long:111.16W
Elev: 3325
ID:241081
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.41  0.25  0.54  0.89  1.95  2.06  1.50  1.33  1.03  0.56  0.43  0.31 11.26
City:BRANDENBERG            
State:MT
Lat:45.49N
Long:106.14W
Elev: 2770
ID:241084
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.5  14.5  22.9  31.9  41.2  49.8  54.3  52.5  42.0  32.4  20.5  11.2  31.8
Maximum     34.1  41.3  50.7  62.4  72.7  82.7  91.5  90.5  77.7  63.8  46.0  36.5  62.5
Mean        21.3  27.9  36.8  47.2  57.0  66.3  72.9  71.5  59.9  48.1  33.3  23.9  47.2
Precip.     0.65  0.48  0.80  1.61  2.44  2.31  1.16  1.02  1.23  1.37  0.70  0.59 14.36
HDD         1354  1038   874   536   269    95    25    33   199   524   951  1275  7173
CDD            0     0     0     0    19   134   268   234    45     0     0     0   700
City:BREDETTE               
State:MT
Lat:48.33N
Long:105.16W
Elev: 2687
ID:241088
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.7   9.3  19.3  30.9  41.9  50.3  54.8  54.0  43.6  33.0  18.0   6.0  30.2
Maximum     20.9  28.4  40.2  55.8  68.4  77.6  83.4  83.1  70.4  56.8  36.5  24.7  53.9
Mean        11.3  18.9  29.8  43.4  55.2  64.0  69.1  68.6  57.0  44.9  27.3  15.4  42.1
Precip.     0.28  0.22  0.49  0.85  1.87  2.79  2.46  1.39  1.21  0.70  0.38  0.34 12.98
HDD         1666  1293  1092   651   326   127    50    85   280   625  1132  1540  8867
CDD            0     0     0     2    21    95   176   195    40     0     0     0   529
City:BRIDGER 2 N            
State:MT
Lat:45.20N
Long:108.55W
Elev: 3630
ID:241102
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.9  13.9  22.0  29.3  39.6  47.7  52.5  50.9  40.0  30.6  19.2  11.7  30.5
Maximum     33.9  41.0  50.9  59.0  69.5  79.6  87.1  86.5  75.0  62.3  45.1  36.4  60.5
Mean        21.4  27.5  36.5  44.2  54.6  63.7  69.8  68.7  57.5  46.5  32.2  24.1  45.6
Precip.     0.77  0.57  1.04  1.69  2.43  1.63  0.85  0.73  1.23  1.29  0.68  0.57 13.48
HDD         1352  1052   886   625   334   119    36    51   259   575   985  1270  7544
CDD            0     0     0     0     8    79   184   165    34     0     0     0   470
City:BROADUS                
State:MT
Lat:45.27N
Long:105.25W
Elev: 3032
ID:241127
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.6  14.9  22.6  31.7  41.5  50.7  56.1  54.5  43.5  32.9  20.7  11.2  32.4
Maximum     32.8  39.7  49.1  60.3  70.4  80.1  87.9  87.1  75.2  62.2  45.1  35.2  60.4
Mean        20.7  27.3  35.9  46.0  56.0  65.4  72.0  70.8  59.4  47.6  32.9  23.2  46.4
Precip.     0.49  0.41  0.87  1.56  2.30  2.17  1.52  0.90  1.04  1.24  0.59  0.50 13.59
HDD         1374  1057   904   570   297   104    26    36   207   541   963  1296  7375
CDD            0     0     0     0    17   116   243   215    38     0     0     0   629
City:BROADVIEW              
State:MT
Lat:46.06N
Long:108.53W
Elev: 3881
ID:241149
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.9  15.5  22.6  30.4  39.4  47.4  52.0  50.9  41.5  32.7  21.2  13.8  31.5
Maximum     35.5  41.0  48.0  57.9  67.4  77.2  84.9  84.5  73.1  61.4  44.5  37.3  59.4
Mean        23.2  28.3  35.3  44.2  53.4  62.3  68.5  67.7  57.3  47.1  32.9  25.6  45.5
Precip.     0.40  0.36  0.72  1.11  2.73  1.72  1.43  1.13  1.26  1.03  0.42  0.37 12.68
HDD         1297  1029   921   626   364   142    53    69   265   557   965  1223  7511
CDD            0     0     0     0     4    60   160   153    34     0     0     0   411
City:BROCKWAY 3 WSW         
State:MT
Lat:47.17N
Long:105.50W
Elev: 2630
ID:241169
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.0  12.7  22.0  32.5  42.9  51.6  55.3  53.9  42.2  31.6  18.8   8.5  31.4
Maximum     25.9  33.4  44.4  58.1  69.1  78.4  85.4  84.8  72.4  59.4  40.9  29.6  56.8
Mean        15.5  23.1  33.2  45.3  56.0  65.0  70.4  69.4  57.3  45.5  29.9  19.1  44.1
Precip.     0.23  0.18  0.42  0.97  1.90  2.31  1.71  1.19  1.29  0.80  0.26  0.26 11.52
HDD         1536  1176   986   591   301   113    42    72   273   605  1054  1426  8175
CDD            0     0     0     0    22   113   209   206    41     0     0     0   591
City:BROWNING               
State:MT
Lat:48.34N
Long:113.01W
Elev: 4355
ID:241202
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.75  0.76  0.77  1.24  1.77  1.87  1.52  1.55  1.02  0.79  0.69  0.65 13.38
City:BRUSETT 3 N            
State:MT
Lat:47.28N
Long:107.19W
Elev: 3170
ID:241231
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.40  0.29  0.57  1.09  2.39  2.34  1.76  1.33  1.32  0.77  0.48  0.52 13.26
City:BUSBY                  
State:MT
Lat:45.32N
Long:106.58W
Elev: 3430
ID:241297
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.6  11.2  20.6  29.7  38.4  46.9  51.0  49.6  39.6  29.4  17.6   7.5  28.9
Maximum     32.0  38.1  47.7  59.4  69.2  79.2  87.9  87.6  75.5  61.8  44.5  34.0  59.7
Mean        18.8  24.7  34.2  44.6  53.8  63.1  69.5  68.6  57.6  45.6  31.1  20.8  44.4
Precip.     0.72  0.54  0.83  1.42  2.25  2.45  1.17  0.85  1.39  1.37  0.87  0.67 14.53
HDD         1433  1129   957   614   353   134    44    58   253   600  1019  1372  7966
CDD            0     0     0     0     5    75   182   170    30     0     0     0   462
City:BUTTE MOONEY AP        
State:MT
Lat:45.57N
Long:112.30W
Elev: 5540
ID:241318
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.4   9.6  18.5  26.4  34.3  41.4  45.5  44.1  35.3  26.2  15.3   5.7  25.6
Maximum     29.7  34.7  42.1  51.6  60.8  70.7  79.8  79.0  67.8  55.5  38.9  29.9  53.4
Mean        17.6  22.2  30.3  39.0  47.6  56.1  62.7  61.6  51.6  40.9  27.1  17.8  39.5
Precip.     0.53  0.47  0.83  1.02  2.02  2.07  1.47  1.36  1.09  0.79  0.60  0.53 12.78
HDD         1471  1199  1077   781   540   278   129   165   410   748  1137  1464  9399
CDD            0     0     0     0     0     9    55    57     6     0     0     0   127
City:CANYON FERRY DAM       
State:MT
Lat:46.39N
Long:111.44W
Elev: 3672
ID:241470
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.8  17.7  25.0  32.3  40.1  47.4  52.1  51.6  43.7  35.3  25.9  16.8  33.5
Maximum     31.2  37.4  46.9  57.2  66.4  75.0  83.3  83.3  72.0  59.1  42.6  33.4  57.3
Mean        22.5  27.6  36.0  44.8  53.3  61.2  67.7  67.5  57.9  47.2  34.3  25.1  45.4
Precip.     0.45  0.31  0.55  0.94  1.96  1.83  1.47  1.30  1.11  0.66  0.46  0.46 11.50
HDD         1318  1048   901   607   367   161    59    58   236   552   923  1237  7467
CDD            0     0     0     0     2    47   143   135    22     0     0     0   349
City:CARLYLE 12 NW          
State:MT
Lat:46.45N
Long:104.17W
Elev: 3029
ID:241518
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.7  12.2  20.3  30.0  40.6  49.7  54.8  53.5  43.5  33.1  20.0   9.7  31.1
Maximum     26.2  33.6  43.4  56.3  67.4  76.7  84.2  83.8  71.6  58.6  40.3  29.7  56.0
Mean        16.0  22.9  31.9  43.2  54.0  63.2  69.5  68.7  57.6  45.9  30.2  19.7  43.6
Precip.     0.48  0.45  0.75  1.52  2.27  2.63  1.91  1.45  1.47  1.29  0.67  0.53 15.42
HDD         1521  1178  1027   655   356   142    50    71   265   594  1047  1406  8312
CDD            0     0     0     0    14    89   190   184    41     0     0     0   518
City:CARTER 14 W            
State:MT
Lat:47.48N
Long:111.13W
Elev: 3450
ID:241525
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.4  12.5  20.2  30.2  39.6  46.9  51.3  51.1  42.1  32.2  19.2  12.5  30.4
Maximum     29.6  36.4  44.5  55.7  65.9  75.6  83.4  83.6  71.6  59.4  40.8  32.8  56.6
Mean        18.5  24.5  32.4  43.0  52.8  61.3  67.4  67.4  56.9  45.8  30.0  22.7  43.6
Precip.     0.40  0.35  0.73  1.00  2.18  1.90  1.43  1.66  1.18  0.76  0.48  0.34 12.41
HDD         1441  1135  1013   662   382   160    60    82   286   596  1050  1313  8180
CDD            0     0     0     0     2    47   133   155    41     0     0     0   378
City:CASCADE 5 S            
State:MT
Lat:47.13N
Long:111.43W
Elev: 3360
ID:241552
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     15.0  19.0  24.9  32.6  40.7  47.8  50.6  49.6  41.3  34.6  25.6  18.1  33.3
Maximum     35.9  41.0  48.4  58.1  66.9  75.4  83.3  82.9  72.0  61.0  44.9  37.7  59.0
Mean        25.5  30.0  36.7  45.4  53.8  61.6  67.0  66.3  56.7  47.8  35.3  27.9  46.2
Precip.     0.58  0.50  0.98  1.77  2.95  2.28  1.58  1.61  1.64  1.22  0.67  0.57 16.35
HDD         1225   979   880   588   349   151    56    94   275   533   892  1150  7172
CDD            0     0     0     0     2    49   118   133    25     0     0     0   327
City:CASCADE 20 SSE         
State:MT
Lat:47.00N
Long:111.35W
Elev: 4600
ID:241557
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.2  15.8  20.7  27.2  34.6  41.0  43.5  43.1  35.7  29.5  21.2  14.3  28.2
Maximum     35.8  40.2  46.2  54.9  63.6  71.9  79.8  80.1  69.7  58.6  43.1  36.8  56.7
Mean        24.0  28.0  33.5  41.1  49.1  56.5  61.7  61.6  52.7  44.1  32.2  25.6  42.5
Precip.     0.50  0.37  0.73  1.19  2.72  2.47  1.63  1.44  1.49  0.91  0.55  0.45 14.45
HDD         1271  1035   979   718   494   267   144   159   378   651   985  1224  8305
CDD            0     0     0     0     0    10    41    53     9     0     0     0   113
City:CHESTER                
State:MT
Lat:48.31N
Long:110.58W
Elev: 3165
ID:241692
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.9   9.1  18.8  28.7  39.1  46.5  50.5  49.3  39.0  28.3  15.6   6.2  27.9
Maximum     28.1  35.1  45.1  58.0  67.7  75.4  82.6  82.2  71.2  59.3  40.5  30.4  56.3
Mean        16.0  22.1  32.0  43.4  53.4  61.0  66.6  65.8  55.1  43.8  28.1  18.3  42.1
Precip.     0.38  0.26  0.51  0.71  1.77  2.20  1.47  1.21  0.84  0.48  0.36  0.39 10.58
HDD         1520  1202  1025   651   363   158    75   101   321   657  1108  1448  8629
CDD            0     0     0     0     2    37   123   125    24     0     0     0   311
City:CHINOOK                
State:MT
Lat:48.35N
Long:109.14W
Elev: 2345
ID:241722
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -0.5   6.2  16.7  29.9  40.8  49.9  53.1  51.4  38.6  27.2  13.4   3.7  27.5
Maximum     25.9  33.4  45.1  58.9  69.1  77.8  84.0  83.7  72.1  59.2  40.3  29.7  56.6
Mean        12.7  19.8  30.9  44.4  55.0  63.9  68.6  67.6  55.4  43.2  26.9  16.7  42.1
Precip.     0.54  0.32  0.56  0.99  2.29  2.29  1.66  1.34  1.43  0.66  0.47  0.51 13.06
HDD         1624  1265  1058   618   318   108    38    69   314   675  1145  1497  8729
CDD            0     0     0     0     7    74   147   148    25     0     0     0   401
City:CHOTEAU                
State:MT
Lat:47.49N
Long:112.12W
Elev: 3845
ID:241737
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.2  17.4  23.8  31.7  40.2  47.8  51.7  51.0  42.7  34.7  23.6  16.1  32.8
Maximum     33.7  39.2  46.3  56.0  65.3  73.7  81.0  80.9  70.3  59.4  42.5  35.7  57.0
Mean        23.5  28.3  35.1  43.9  52.8  60.8  66.4  66.0  56.5  47.1  33.1  25.9  45.0
Precip.     0.25  0.19  0.34  0.72  2.00  2.15  1.31  1.38  0.99  0.52  0.25  0.22 10.32
HDD         1288  1029   928   635   383   174    75    98   292   557   958  1212  7629
CDD            0     0     0     0     2    45   117   127    38     0     0     0   329
City:CIRCLE                 
State:MT
Lat:47.25N
Long:105.35W
Elev: 2440
ID:241758
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.7  12.5  21.2  31.5  42.0  50.7  55.2  54.2  42.9  32.3  19.7   9.1  31.4
Maximum     27.0  34.2  44.7  58.3  69.6  79.4  86.4  86.2  73.8  60.0  41.5  30.6  57.6
Mean        16.4  23.4  33.0  44.9  55.8  65.1  70.8  70.2  58.4  46.2  30.6  19.9  44.6
Precip.     0.42  0.36  0.64  1.15  1.94  2.39  1.94  1.29  1.35  0.93  0.44  0.43 13.28
HDD         1510  1166   994   603   305   110    39    65   245   585  1033  1399  8054
CDD            0     0     0     0    20   112   219   225    45     0     0     0   621
City:CLEVELAND 5 ENE        
State:MT
Lat:48.19N
Long:109.04W
Elev: 3333
ID:241824
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.7  12.0  20.1  29.8  39.3  46.0  50.0  49.1  40.3  30.9  17.8  10.4  29.5
Maximum     30.6  36.0  44.1  56.3  66.1  74.5  80.7  80.2  69.6  58.8  42.1  33.5  56.0
Mean        19.2  24.0  32.1  43.1  52.7  60.3  65.4  64.7  55.0  44.9  30.0  22.0  42.8
Precip.     0.74  0.50  1.16  1.60  2.72  2.60  1.69  1.14  1.42  0.93  0.86  0.76 16.12
HDD         1422  1148  1021   658   388   178    87   130   329   624  1051  1334  8370
CDD            0     0     0     0     7    36    98   119    27     0     0     0   287
City:COHAGEN                
State:MT
Lat:47.03N
Long:106.37W
Elev: 2715
ID:241875
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      4.9  11.4  20.2  29.7  39.7  48.9  53.3  52.1  40.9  30.7  18.0   8.1  29.8
Maximum     30.5  38.1  48.7  61.4  71.6  81.1  88.5  88.4  76.3  62.8  44.1  33.6  60.4
Mean        17.7  24.8  34.5  45.6  55.7  65.0  70.9  70.3  58.6  46.8  31.1  20.9  45.2
Precip.     0.44  0.28  0.49  1.02  2.09  2.07  1.65  1.07  1.32  0.91  0.42  0.45 12.21
HDD         1467  1127   947   584   305   108    31    52   234   566  1019  1369  7809
CDD            0     0     0     0    16   108   214   214    41     0     0     0   593
City:COLSTRIP               
State:MT
Lat:45.54N
Long:106.38W
Elev: 3218
ID:241905
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.3  15.9  24.2  33.3  42.9  52.0  57.2  56.0  45.5  35.4  23.0  13.6  34.1
Maximum     33.4  39.4  47.6  57.7  67.6  77.7  85.4  85.0  72.9  60.4  44.1  36.1  58.9
Mean        21.9  27.7  35.9  45.5  55.3  64.9  71.3  70.5  59.2  47.9  33.6  24.9  46.6
Precip.     0.58  0.43  0.87  1.34  2.59  2.51  1.35  1.09  1.32  1.35  0.65  0.48 14.56
HDD         1338  1046   902   586   318   116    31    44   217   529   942  1244  7313
CDD            0     0     0     0    16   111   227   216    43     0     0     0   613
City:COLUMBUS               
State:MT
Lat:45.38N
Long:109.16W
Elev: 3585
ID:241938
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.9  15.1  23.0  30.7  39.4  47.0  52.0  50.3  40.7  31.0  20.4  12.0  31.0
Maximum     35.8  42.5  50.8  60.0  69.3  78.8  86.2  85.1  74.2  62.5  45.4  37.0  60.6
Mean        22.9  28.8  36.9  45.4  54.4  62.9  69.1  67.7  57.5  46.8  32.9  24.5  45.8
Precip.     0.71  0.62  1.11  1.88  2.91  1.91  1.34  1.06  1.46  1.33  0.68  0.66 15.67
HDD         1307  1014   872   590   337   127    35    61   249   566   963  1257  7378
CDD            0     0     0     0     6    65   162   145    24     0     0     0   402
City:CONRAD                 
State:MT
Lat:48.11N
Long:111.58W
Elev: 3550
ID:241974
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.0  11.7  19.4  28.0  37.5  44.8  48.3  47.4  38.0  28.9  17.1   9.9  28.2
Maximum     31.7  37.2  45.6  56.9  66.1  73.8  80.2  80.2  69.9  58.8  41.7  34.0  56.3
Mean        19.4  24.5  32.5  42.5  51.8  59.3  64.3  63.8  54.0  43.9  29.4  22.0  42.3
Precip.     0.44  0.33  0.67  1.04  2.17  2.23  1.22  1.45  1.01  0.58  0.47  0.45 12.06
HDD         1415  1136  1008   677   409   193   100   125   346   655  1068  1335  8467
CDD            0     0     0     0     0    21    77    88    16     0     0     0   202
City:CONTENT 3 SSE          
State:MT
Lat:47.59N
Long:107.33W
Elev: 2340
ID:241984
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      4.3  10.8  20.6  30.7  41.1  49.5  53.9  52.5  41.6  31.2  17.9   7.4  30.1
Maximum     27.2  34.4  45.2  58.3  69.1  78.2  85.3  85.0  72.7  60.2  41.9  31.2  57.4
Mean        15.8  22.6  32.9  44.5  55.1  63.9  69.6  68.8  57.2  45.7  29.9  19.3  43.8
Precip.     0.35  0.25  0.52  0.97  2.24  2.26  1.66  1.22  1.06  0.70  0.36  0.38 11.97
HDD         1527  1187   995   615   320   123    44    75   271   598  1054  1417  8226
CDD            0     0     0     0    13    89   185   192    36     0     0     0   515
City:COOKE CITY 2 W         
State:MT
Lat:45.01N
Long:109.58W
Elev: 7460
ID:241995
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      2.1   4.2  10.1  17.6  26.5  32.9  37.6  36.5  28.9  21.6  10.5   2.3  19.2
Maximum     23.6  30.4  36.8  44.3  53.7  64.3  73.0  72.0  61.6  48.9  31.6  23.1  46.9
Mean        12.9  17.3  23.5  31.0  40.1  48.6  55.3  54.3  45.3  35.3  21.1  12.7  33.1
Precip.     2.29  1.79  2.00  1.78  2.69  2.85  2.16  2.08  1.95  1.59  2.05  2.24 25.47
HDD         1617  1335  1287  1022   772   493   305   336   593   922  1320  1622 11624
CDD            0     0     0     0     0     0     5     3     0     0     0     0     8
City:CRESTON                
State:MT
Lat:48.11N
Long:114.08W
Elev: 2940
ID:242104
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     15.1  18.6  25.3  31.9  39.6  46.0  49.3  47.6  38.6  30.3  24.5  17.6  32.0
Maximum     30.4  36.1  44.5  55.0  63.8  70.8  78.5  79.4  68.2  55.4  39.8  31.5  54.5
Mean        22.8  27.4  34.9  43.5  51.7  58.4  63.9  63.5  53.4  42.9  32.2  24.6  43.3
Precip.     1.32  1.19  1.31  1.71  2.54  2.86  1.80  1.48  1.59  1.25  1.54  1.59 20.18
HDD         1310  1054   933   647   413   215   110   112   355   686   986  1255  8076
CDD            0     0     0     0     1    17    76    66     7     0     0     0   167
City:CROW AGENCY            
State:MT
Lat:45.36N
Long:107.27W
Elev: 3030
ID:242112
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.8  10.8  21.3  31.0  40.1  48.4  53.1  52.1  41.1  30.4  17.2   6.3  29.6
Maximum     31.8  39.7  49.7  60.4  69.3  80.0  87.8  87.9  75.5  64.2  45.1  34.1  60.5
Mean        17.8  25.3  35.5  45.7  54.7  64.2  70.5  70.0  58.3  47.3  31.2  20.2  45.1
Precip.     0.83  0.62  1.06  1.82  2.46  2.01  1.14  0.98  1.71  1.47  1.03  0.68 15.81
HDD         1463  1114   915   579   327   109    31    46   235   549  1016  1390  7774
CDD            0     0     0     0     7    85   199   201    35     0     0     0   527
City:CULBERTSON             
State:MT
Lat:48.09N
Long:104.31W
Elev: 1920
ID:242122
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -1.1   7.8  18.7  29.7  41.5  49.9  54.0  52.5  41.6  30.6  15.8   3.6  28.7
Maximum     22.1  31.4  44.5  60.5  72.6  81.2  87.0  86.5  73.7  60.6  39.1  26.4  57.1
Mean        10.5  19.6  31.6  45.1  57.1  65.6  70.5  69.5  57.7  45.6  27.5  15.0  42.9
Precip.     0.31  0.23  0.49  0.91  2.09  2.82  2.30  1.25  1.53  0.82  0.46  0.37 13.58
HDD         1692  1271  1036   598   276    99    38    67   256   602  1127  1549  8611
CDD            0     0     0     1    28   115   209   205    35     0     0     0   593
City:CUT BANK MUNICIPAL AP  
State:MT
Lat:48.37N
Long:112.23W
Elev: 3838
ID:242173
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.5  13.7  21.0  29.7  38.3  45.8  49.9  49.3  40.5  31.7  20.9  12.6  30.2
Maximum     28.4  33.7  40.7  52.2  61.1  68.6  76.3  75.6  65.3  54.0  38.0  29.9  52.0
Mean        19.0  23.7  30.9  41.0  49.7  57.2  63.1  62.5  52.9  42.9  29.5  21.3  41.1
Precip.     0.39  0.28  0.55  0.90  2.22  2.48  1.58  1.71  1.18  0.47  0.42  0.33 12.51
HDD         1428  1157  1059   723   475   249   129   172   379   687  1066  1356  8880
CDD            0     0     0     0     0    15    70    94    16     0     0     0   195
City:DARBY                  
State:MT
Lat:46.01N
Long:114.11W
Elev: 3880
ID:242221
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     18.5  21.5  27.1  32.6  39.8  45.6  49.0  48.3  41.1  33.4  25.4  18.9  33.4
Maximum     35.9  42.3  50.6  58.7  67.4  75.4  83.8  83.7  73.3  61.7  44.6  36.4  59.5
Mean        27.2  31.9  38.9  45.7  53.6  60.5  66.4  66.0  57.2  47.6  35.0  27.7  46.5
Precip.     1.46  1.08  0.97  1.16  2.03  1.99  1.08  1.23  1.13  1.07  1.49  1.51 16.20
HDD         1173   926   810   580   357   164    67    78   252   540   901  1158  7006
CDD            0     0     0     0     2    30   111   109    18     0     0     0   270
City:DECKER 4 NNE           
State:MT
Lat:45.04N
Long:106.47W
Elev: 3500
ID:242266
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.53  0.37  0.68  1.34  2.04  1.93  1.23  0.70  1.08  0.92  0.69  0.54 12.05
City:DEER LODGE 3 W         
State:MT
Lat:46.23N
Long:112.48W
Elev: 4850
ID:242275
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.6  15.2  21.2  25.8  32.9  39.2  42.8  41.4  33.3  26.1  17.8  10.6  26.4
Maximum     35.0  40.1  47.7  57.5  64.9  73.0  80.3  80.4  70.8  59.6  44.1  35.1  57.4
Mean        22.8  27.7  34.5  41.7  48.9  56.1  61.6  60.9  52.1  42.9  31.0  22.9  41.9
Precip.     0.33  0.28  0.47  0.69  1.89  1.62  1.49  1.38  1.10  0.57  0.40  0.38 10.60
HDD         1307  1045   946   701   499   276   153   173   392   687  1022  1306  8507
CDD            0     0     0     0     0     8    46    46     4     0     0     0   104
City:DEL BONITA             
State:MT
Lat:49.00N
Long:112.47W
Elev: 4337
ID:242301
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.0  13.4  19.9  27.7  36.3  43.2  46.7  46.5  38.8  30.6  18.9  11.6  28.6
Maximum     29.5  34.4  41.4  53.3  63.4  70.4  76.8  77.0  67.5  56.1  38.5  31.2  53.3
Mean        19.3  23.9  30.7  40.5  49.9  56.8  61.8  61.8  53.2  43.4  28.7  21.4  41.0
Precip.     0.42  0.35  0.73  1.22  2.58  2.85  1.69  1.85  1.50  0.52  0.54  0.38 14.63
HDD         1419  1151  1065   736   469   256   154   181   375   670  1090  1351  8917
CDD            0     0     0     0     0     9    52    79    19     0     0     0   159
City:DENTON                 
State:MT
Lat:47.19N
Long:109.56W
Elev: 3610
ID:242347
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.3   9.0  16.9  26.3  35.8  43.4  46.3  45.5  36.0  25.8  14.5   6.6  25.8
Maximum     31.3  37.5  45.4  55.8  65.1  74.1  81.3  81.7  70.4  59.0  42.7  34.2  56.5
Mean        17.3  23.3  31.2  41.1  50.5  58.8  63.8  63.6  53.2  42.4  28.6  20.4  41.2
Precip.     0.50  0.34  0.70  1.16  2.70  2.65  1.91  1.78  1.48  0.92  0.48  0.50 15.12
HDD         1479  1169  1050   718   451   208   107   128   365   701  1091  1382  8849
CDD            0     0     0     0     0    19    68    84    11     0     0     0   182
City:DILLON AP              
State:MT
Lat:45.15N
Long:112.33W
Elev: 5216
ID:242404
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.9  15.8  22.3  28.9  36.7  44.0  48.6  47.7  39.2  30.6  19.7  11.9  29.8
Maximum     33.1  39.0  46.6  55.4  63.9  73.1  81.2  80.3  69.7  57.9  41.7  33.0  56.2
Mean        22.5  27.4  34.5  42.2  50.3  58.6  64.9  64.0  54.5  44.3  30.7  22.5  43.0
Precip.     0.26  0.20  0.53  0.95  1.81  1.77  1.14  1.08  0.97  0.64  0.36  0.23  9.94
HDD         1318  1053   947   686   456   216    87   108   333   643  1029  1318  8194
CDD            0     0     0     0     0    23    84    77    15     0     0     0   199
City:DILLON WMCE            
State:MT
Lat:45.13N
Long:112.39W
Elev: 5228
ID:242409
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.5  16.9  23.0  29.2  36.8  43.4  47.4  46.0  38.8  31.2  21.2  14.0  30.1
Maximum     34.4  40.4  48.1  57.3  66.3  75.2  83.5  82.3  72.2  60.2  42.9  34.2  58.1
Mean        24.0  28.7  35.6  43.3  51.6  59.3  65.5  64.2  55.5  45.7  32.1  24.1  44.1
Precip.     0.37  0.25  0.66  1.22  2.25  1.87  1.19  1.18  1.07  0.85  0.39  0.35 11.65
HDD         1274  1018   914   654   417   188    73    93   298   599   990  1269  7787
CDD            0     0     0     0     0    17    86    67    13     0     0     0   183
City:DIVIDE                 
State:MT
Lat:45.45N
Long:112.45W
Elev: 5350
ID:242421
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.6   9.1  17.3  25.2  33.5  39.7  43.7  42.0  33.3  23.8  13.6   6.5  24.4
Maximum     30.9  36.0  42.8  51.7  61.0  69.9  78.5  77.6  67.5  56.1  39.6  30.7  53.5
Mean        18.3  22.6  30.1  38.5  47.3  54.8  61.1  59.8  50.4  40.0  26.6  18.6  39.0
Precip.     0.46  0.42  0.77  0.99  1.91  2.09  1.31  1.39  1.14  0.70  0.57  0.53 12.28
HDD         1450  1189  1085   798   552   313   164   195   443   777  1152  1439  9557
CDD            0     0     0     0     0     7    44    33     5     0     0     0    89
City:DODSON                 
State:MT
Lat:48.24N
Long:108.15W
Elev: 2280
ID:242438
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.51  0.37  0.57  0.73  2.15  2.38  1.41  1.15  1.10  0.55  0.43  0.49 11.84
City:DRUMMOND AVIATION      
State:MT
Lat:46.38N
Long:113.11W
Elev: 4000
ID:242500
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.6  15.7  22.5  28.2  35.4  42.3  44.8  43.9  36.1  28.1  19.7  12.2  28.4
Maximum     30.6  37.8  48.2  58.4  66.8  75.2  83.7  83.2  72.2  58.3  39.6  30.0  57.0
Mean        21.1  26.8  35.4  43.3  51.1  58.8  64.3  63.6  54.2  43.2  29.7  21.1  42.7
Precip.     0.79  0.61  0.75  0.98  1.96  1.66  1.15  1.29  1.06  0.77  0.79  0.80 12.61
HDD         1360  1071   919   651   431   210    99   104   333   676  1060  1362  8276
CDD            0     0     0     0     1    21    76    60     7     0     0     0   165
City:EAST GLACIER           
State:MT
Lat:48.27N
Long:113.13W
Elev: 4806
ID:242629
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.0  12.5  18.0  26.3  33.9  40.4  44.1  43.3  36.0  30.2  20.5  12.8  27.3
Maximum     29.8  34.3  41.4  48.9  59.4  67.3  73.6  73.5  63.1  52.5  37.5  31.2  51.0
Mean        19.4  23.4  29.7  37.6  46.7  53.9  58.9  58.4  49.6  41.4  29.0  22.0  39.2
Precip.     3.07  2.14  2.10  1.79  2.69  2.91  1.69  1.92  1.78  2.01  3.08  3.08 28.26
HDD         1414  1165  1094   822   569   338   204   232   468   733  1081  1333  9453
CDD            0     0     0     0     0     3    12    28     5     0     0     0    48
City:EKALAKA                
State:MT
Lat:45.53N
Long:104.33W
Elev: 3425
ID:242689
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.0  13.8  20.9  30.9  41.1  50.4  55.9  55.0  44.1  33.5  20.6  11.3  32.1
Maximum     29.8  35.9  45.1  57.5  68.3  77.7  85.5  84.4  72.7  59.4  41.7  32.9  57.6
Mean        18.9  24.9  33.0  44.2  54.7  64.1  70.7  69.7  58.4  46.5  31.2  22.1  44.9
Precip.     0.59  0.51  0.81  1.85  2.69  3.16  1.90  1.27  1.52  1.59  0.79  0.57 17.25
HDD         1429  1124   992   624   336   127    41    61   247   576  1016  1331  7904
CDD            0     0     0     0    16    99   218   206    49     0     0     0   588
City:ENNIS                  
State:MT
Lat:45.21N
Long:111.43W
Elev: 4953
ID:242793
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     14.9  17.8  23.1  28.5  35.7  42.2  46.6  45.1  37.4  30.7  22.6  15.8  30.0
Maximum     33.3  38.9  46.4  56.1  65.4  74.5  82.4  81.5  71.3  59.4  42.1  33.6  57.1
Mean        24.1  28.4  34.8  42.3  50.6  58.4  64.5  63.3  54.4  45.1  32.4  24.7  43.6
Precip.     0.46  0.45  0.88  1.30  2.19  2.28  1.37  1.36  1.19  1.02  0.61  0.47 13.58
HDD         1269  1026   938   680   449   218    93   112   329   620   980  1249  7963
CDD            0     0     0     0     0    19    77    59     9     0     0     0   164
City:ETHRIDGE               
State:MT
Lat:48.33N
Long:112.08W
Elev: 3544
ID:242820
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.29  0.22  0.48  0.92  1.88  2.27  1.44  1.57  0.88  0.54  0.31  0.24 11.04
City:EUREKA RANGER STN      
State:MT
Lat:48.54N
Long:115.04W
Elev: 2532
ID:242827
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     15.3  20.3  27.0  33.0  40.5  46.6  49.9  48.8  40.7  32.6  25.8  18.0  33.2
Maximum     29.7  37.9  48.8  59.5  68.8  76.1  84.2  84.1  72.9  57.7  39.9  30.7  57.5
Mean        22.5  29.1  37.9  46.3  54.7  61.4  67.1  66.5  56.8  45.2  32.9  24.4  45.4
Precip.     1.14  0.78  0.78  0.93  1.85  2.10  1.50  1.26  1.07  0.99  1.27  1.15 14.82
HDD         1317  1005   841   564   326   156    67    68   275   616   964  1260  7459
CDD            0     0     0     0     5    47   131   113    29     0     0     0   325
City:FAIRFIELD              
State:MT
Lat:47.37N
Long:111.59W
Elev: 3983
ID:242857
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.3  15.1  21.9  30.7  39.9  47.2  51.1  50.8  42.1  33.1  21.6  14.7  31.6
Maximum     31.7  37.6  45.4  54.9  64.1  72.1  78.7  79.6  69.6  58.5  41.5  34.3  55.7
Mean        21.5  26.4  33.7  42.8  52.0  59.7  64.9  65.2  55.9  45.8  31.6  24.5  43.7
Precip.     0.38  0.29  0.59  1.11  2.39  2.07  1.54  1.55  1.19  0.69  0.37  0.33 12.50
HDD         1350  1082   972   666   404   191    94   116   309   595  1004  1256  8039
CDD            0     0     0     0     2    30    91   122    34     0     0     0   279
City:FISHTAIL               
State:MT
Lat:45.27N
Long:109.30W
Elev: 4500
ID:242996
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.63  0.59  1.15  2.02  3.73  2.70  1.59  1.41  1.62  1.76  0.88  0.81 18.89
City:FLATWILLOW 4 ENE       
State:MT
Lat:46.51N
Long:108.19W
Elev: 3138
ID:243013
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.2  13.9  21.5  29.8  38.6  47.5  52.0  50.7  41.2  32.2  20.0  11.5  30.7
Maximum     34.8  41.0  49.3  59.8  69.4  78.4  85.8  85.7  74.5  62.8  45.7  37.1  60.4
Mean        22.0  27.5  35.4  44.8  54.0  63.0  68.9  68.2  57.9  47.5  32.9  24.3  45.5
Precip.     0.57  0.34  0.70  1.19  2.64  2.32  1.46  1.25  0.98  0.89  0.48  0.48 13.30
HDD         1334  1051   918   606   346   129    47    73   256   543   964  1261  7528
CDD            0     0     0     0     5    66   167   172    40     0     0     0   450
City:FORKS 4 NNE            
State:MT
Lat:48.47N
Long:107.27W
Elev: 2599
ID:243089
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.3   8.5  19.4  30.5  40.8  48.7  53.2  52.5  42.0  31.7  17.3   5.5  29.3
Maximum     23.5  31.7  43.9  59.0  70.0  78.0  84.7  85.5  73.6  59.7  39.6  27.4  56.4
Mean        12.4  20.1  31.7  44.8  55.4  63.4  69.0  69.0  57.8  45.7  28.5  16.5  42.9
Precip.     0.31  0.30  0.53  0.66  2.13  2.51  2.15  1.18  1.07  0.63  0.46  0.36 12.29
HDD         1630  1258  1034   607   312   128    47    75   265   599  1098  1506  8559
CDD            0     0     0     0    15    79   170   198    49     0     0     0   511
City:FORSYTH                
State:MT
Lat:46.16N
Long:106.41W
Elev: 2515
ID:243098
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.3  14.5  23.8  33.6  43.4  52.2  57.0  55.4  44.9  34.1  21.5  11.4  33.3
Maximum     32.7  40.6  50.7  62.3  72.1  81.4  88.8  87.6  76.0  63.2  45.3  34.8  61.3
Mean        20.5  27.6  37.3  48.0  57.8  66.8  72.9  71.5  60.5  48.7  33.4  23.1  47.3
Precip.     0.47  0.39  0.81  1.41  2.35  2.21  1.43  1.12  1.45  1.17  0.74  0.53 14.08
HDD         1379  1051   860   512   250    81    18    35   190   507   948  1298  7129
CDD            0     0     0     1    25   134   262   237    54     0     0     0   713
City:FORT ASSINNIBOINE      
State:MT
Lat:48.30N
Long:109.48W
Elev: 2613
ID:243110
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.4  10.8  20.3  31.7  41.3  49.4  53.4  52.6  42.0  30.8  18.2   8.2  30.2
Maximum     24.5  33.0  44.8  58.5  68.4  77.9  84.3  85.0  72.6  59.4  40.3  29.4  56.5
Mean        14.0  21.9  32.6  45.1  54.9  63.7  68.9  68.8  57.3  45.1  29.3  18.8  43.4
Precip.     0.48  0.33  0.66  0.99  2.18  2.29  1.77  1.33  1.23  0.77  0.48  0.51 13.02
HDD         1583  1207  1006   598   327   114    44    70   272   618  1073  1432  8344
CDD            0     0     0     1    12    75   163   187    40     0     0     0   478
City:FORT BENTON            
State:MT
Lat:47.49N
Long:110.40W
Elev: 2636
ID:243113
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.1  14.7  23.3  32.0  41.3  48.8  52.6  51.7  41.7  32.4  21.2  13.2  31.9
Maximum     35.1  41.4  51.1  62.8  71.8  79.3  86.6  85.8  75.4  64.3  46.6  37.3  61.5
Mean        22.6  28.1  37.2  47.4  56.6  64.1  69.6  68.8  58.6  48.4  33.9  25.3  46.7
Precip.     0.55  0.39  0.85  1.21  2.30  2.45  1.33  1.52  1.23  0.80  0.54  0.52 13.69
HDD         1315  1042   862   532   274   102    33    64   235   517   934  1233  7143
CDD            0     0     0     3    12    73   175   180    42     0     0     0   485
City:FORTINE 1 N            
State:MT
Lat:48.47N
Long:114.55W
Elev: 3000
ID:243139
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.8  19.0  25.1  30.7  37.4  43.8  47.1  46.4  37.8  30.1  23.7  16.0  30.9
Maximum     28.9  36.8  46.9  57.8  66.8  74.2  81.9  81.9  70.7  56.2  38.2  29.4  55.8
Mean        21.4  27.9  36.0  44.3  52.1  59.0  64.5  64.2  54.3  43.2  31.0  22.7  43.4
Precip.     1.10  0.77  0.89  1.15  1.86  2.26  1.74  1.26  1.19  0.91  1.33  1.25 15.71
HDD         1353  1039   899   623   401   203   103    96   332   678  1021  1312  8060
CDD            0     0     0     0     1    22    87    68    10     0     0     0   188
City:FORT LOGAN 4 ESE       
State:MT
Lat:46.39N
Long:111.06W
Elev: 4710
ID:243157
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.33  0.21  0.51  0.88  2.07  1.92  1.53  1.25  1.12  0.60  0.34  0.32 11.08
City:FORT PECK POWER PLANT  
State:MT
Lat:48.01N
Long:106.25W
Elev: 2070
ID:243176
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      4.7  12.1  22.2  33.2  43.9  52.7  56.9  56.0  45.5  36.3  22.2   9.9  33.0
Maximum     25.7  33.6  45.7  60.1  71.7  81.3  87.8  87.3  74.8  61.7  42.7  31.0  58.6
Mean        15.2  22.9  34.0  46.7  57.8  67.0  72.4  71.7  60.2  49.0  32.5  20.5  45.8
Precip.     0.29  0.19  0.40  0.93  1.80  2.18  2.16  1.23  1.13  0.81  0.30  0.29 11.71
HDD         1543  1181   963   553   253    69    16    40   206   496   977  1381  7678
CDD            0     0     0     2    30   129   244   246    60     0     0     0   711
City:GALATA 16 SSW          
State:MT
Lat:48.15N
Long:111.24W
Elev: 3100
ID:243346
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.46  0.33  0.71  1.07  2.08  2.05  1.39  1.48  1.02  0.67  0.47  0.43 12.16
City:GALLATIN GATEWAY 10SSW 
State:MT
Lat:45.27N
Long:111.14W
Elev: 5480
ID:243366
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     1.08  0.92  1.89  2.44  3.73  3.02  1.53  1.82  2.02  2.01  1.18  1.10 22.74
City:GARDINER               
State:MT
Lat:45.02N
Long:110.42W
Elev: 5275
ID:243378
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     14.3  18.3  24.5  31.4  39.3  46.5  52.5  51.5  42.4  33.9  22.8  15.3  32.7
Maximum     32.7  38.5  46.8  57.0  66.6  76.5  84.9  83.9  73.3  60.2  41.3  32.2  57.8
Mean        23.5  28.4  35.7  44.2  53.0  61.5  68.7  67.7  57.9  47.1  32.1  23.8  45.3
Precip.     0.37  0.33  0.63  0.61  1.70  1.35  1.21  0.88  0.94  0.71  0.67  0.46  9.86
HDD         1287  1025   912   623   379   160    48    55   247   556   989  1279  7560
CDD            0     0     0     0     4    54   162   138    33     0     0     0   391
City:GERALDINE              
State:MT
Lat:47.36N
Long:110.16W
Elev: 3130
ID:243445
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.4  16.2  24.0  32.5  41.8  49.6  53.7  53.3  43.9  34.6  23.0  14.6  33.2
Maximum     34.2  39.9  48.2  58.6  68.2  76.9  84.6  84.7  73.3  61.4  44.6  36.4  59.3
Mean        22.8  28.1  36.1  45.6  55.0  63.3  69.2  69.0  58.6  48.0  33.8  25.5  46.3
Precip.     0.75  0.49  1.01  1.37  2.78  2.52  1.85  1.66  1.40  0.89  0.64  0.68 16.04
HDD         1309  1035   897   583   320   115    44    64   241   527   936  1225  7296
CDD            0     0     0     0     8    63   172   188    49     0     0     0   480
City:GIBSON 2 NE            
State:MT
Lat:46.02N
Long:109.30W
Elev: 4350
ID:243486
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.44  0.47  1.03  1.71  2.68  2.36  1.63  1.55  1.46  1.13  0.69  0.55 15.70
City:GIBSON DAM             
State:MT
Lat:47.36N
Long:112.45W
Elev: 4590
ID:243489
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.5  14.5  19.5  26.7  35.0  41.9  45.8  44.9  36.3  29.6  20.4  13.9  28.3
Maximum     31.6  36.4  42.0  50.4  59.3  67.6  75.8  76.1  66.1  55.1  39.1  32.9  52.7
Mean        21.1  25.5  30.8  38.6  47.2  54.8  60.8  60.5  51.2  42.4  29.8  23.4  40.5
Precip.     0.89  0.70  0.83  1.45  2.97  2.82  1.60  1.82  1.43  1.04  0.87  0.86 17.28
HDD         1363  1108  1062   794   554   313   163   180   420   703  1058  1289  9007
CDD            0     0     0     0     0     6    32    41     6     0     0     0    85
City:GILDFORD               
State:MT
Lat:48.34N
Long:110.18W
Elev: 2820
ID:243530
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      4.9  11.0  20.1  30.0  39.9  47.7  51.4  50.6  40.5  30.4  17.7   8.2  29.4
Maximum     27.8  34.9  45.4  58.5  68.8  76.7  84.0  83.4  71.7  59.3  41.0  31.2  56.9
Mean        16.4  23.0  32.8  44.3  54.4  62.2  67.7  67.0  56.1  44.9  29.4  19.7  43.2
Precip.     0.33  0.21  0.48  0.78  2.01  2.17  1.39  1.30  1.10  0.60  0.36  0.33 11.06
HDD         1507  1178  1000   622   335   142    50    92   294   625  1070  1405  8320
CDD            0     0     0     0     4    58   134   155    26     0     0     0   377
City:GLASGOW 14 NW          
State:MT
Lat:48.21N
Long:106.51W
Elev: 2150
ID:243554
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.31  0.22  0.31  0.53  2.02  2.42  1.75  1.07  0.99  0.55  0.34  0.32 10.83
City:GLASGOW INTL AP        
State:MT
Lat:48.13N
Long:106.37W
Elev: 2294
ID:243558
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.8   9.9  20.6  32.2  43.0  51.6  56.6  55.7  44.1  33.0  18.5   6.4  31.1
Maximum     19.9  28.3  41.3  56.7  67.9  77.1  83.8  83.3  70.4  57.1  37.4  24.8  54.0
Mean        10.8  19.1  30.9  44.5  55.5  64.4  70.2  69.5  57.3  45.0  27.9  15.6  42.6
Precip.     0.35  0.26  0.47  0.75  1.72  2.20  1.78  1.25  0.98  0.71  0.39  0.37 11.23
HDD         1671  1290  1055   610   308    91    22    38   253   609  1088  1506  8541
CDD            0     0     0     1    17    80   185   182    28     1     0     0   494
City:GLEN 2 E               
State:MT
Lat:45.28N
Long:112.39W
Elev: 4960
ID:243570
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      6.7  10.9  18.6  25.6  33.7  39.8  43.4  40.9  32.4  24.3  14.4   6.8  24.8
Maximum     35.2  40.9  48.5  57.4  65.7  74.7  83.8  83.1  73.0  61.4  44.1  35.3  58.6
Mean        21.0  25.9  33.6  41.5  49.7  57.3  63.6  62.0  52.7  42.9  29.3  21.1  41.7
Precip.     0.24  0.18  0.42  0.68  1.67  1.82  1.08  1.24  0.90  0.48  0.34  0.17  9.22
HDD         1366  1095   976   705   476   249   118   141   377   687  1072  1362  8624
CDD            0     0     0     0     0    16    75    47     8     0     0     0   146
City:GLENDIVE               
State:MT
Lat:47.06N
Long:104.43W
Elev: 2076
ID:243581
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.6  10.7  20.2  31.7  43.7  53.3  58.3  55.9  44.4  33.7  20.2   8.7  32.0
Maximum     25.3  33.7  44.9  58.9  70.4  80.2  87.3  87.0  74.4  61.2  41.0  29.3  57.8
Mean        14.5  22.2  32.6  45.3  57.1  66.8  72.8  71.5  59.4  47.5  30.6  19.0  44.9
Precip.     0.41  0.33  0.57  1.17  2.08  2.50  1.80  1.44  1.43  1.00  0.49  0.40 13.62
HDD         1568  1198  1007   592   275    91    25    49   221   545  1032  1426  8029
CDD            0     0     0     0    28   144   266   248    53     0     0     0   739
City:GOLDBUTTE 7 N          
State:MT
Lat:48.59N
Long:111.24W
Elev: 3498
ID:243617
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.1  12.6  20.4  29.2  37.7  44.6  48.3  47.5  39.2  31.0  19.1  11.4  29.1
Maximum     31.4  36.1  44.2  56.0  65.4  72.9  79.9  79.6  68.7  57.3  40.9  33.3  55.5
Mean        19.8  24.4  32.3  42.6  51.6  58.8  64.1  63.6  54.0  44.2  30.0  22.4  42.3
Precip.     0.42  0.33  0.70  1.10  2.17  2.63  1.45  1.76  1.46  0.74  0.51  0.42 13.69
HDD         1403  1138  1015   673   419   210   105   143   351   647  1051  1323  8478
CDD            0     0     0     0     1    21    76    97    19     0     0     0   214
City:GRANT 5 SE             
State:MT
Lat:44.56N
Long:113.02W
Elev: 5780
ID:243707
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.40  0.27  0.62  1.00  1.78  1.64  1.12  1.05  0.87  0.69  0.47  0.41 10.32
City:GRASS RANGE            
State:MT
Lat:47.02N
Long:108.48W
Elev: 3490
ID:243727
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.9  15.6  22.5  30.6  39.3  46.8  51.0  50.3  41.0  32.4  20.7  13.5  31.2
Maximum     34.7  39.9  46.9  56.6  65.8  74.7  81.4  81.6  70.6  59.8  44.2  36.9  57.8
Mean        22.8  27.8  34.7  43.6  52.6  60.8  66.2  66.0  55.8  46.1  32.5  25.2  44.5
Precip.     0.79  0.31  0.99  1.44  3.08  2.81  2.06  1.59  1.27  0.92  0.61  0.64 16.51
HDD         1309  1043   938   641   389   169    87   108   304   586   977  1235  7786
CDD            0     0     0     0     3    41   124   137    28     0     0     0   333
City:GREAT FALLS INTL AP    
State:MT
Lat:47.28N
Long:111.23W
Elev: 3664
ID:243751
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.3  15.1  21.5  29.7  38.3  46.0  50.4  49.9  41.2  33.0  22.5  14.4  31.1
Maximum     32.1  37.7  45.3  55.6  64.7  73.9  82.0  81.2  69.6  58.0  42.1  34.2  56.4
Mean        21.7  26.4  33.4  42.6  51.5  60.0  66.2  65.6  55.4  45.5  32.3  24.3  43.8
Precip.     0.68  0.51  1.01  1.40  2.53  2.24  1.45  1.65  1.23  0.93  0.59  0.67 14.89
HDD         1323  1063   948   639   389   158    48    64   275   579   952  1237  7675
CDD            0     0     0     1     7    47   126   121    22     2     0     0   326
City:HAMILTON               
State:MT
Lat:46.14N
Long:114.10W
Elev: 3529
ID:243885
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.8  20.2  26.3  32.2  39.2  45.3  49.3  48.1  40.1  31.0  23.2  16.9  32.4
Maximum     34.4  40.8  49.7  57.9  66.3  74.2  82.8  82.0  71.0  58.7  42.3  34.0  57.8
Mean        25.6  30.5  38.0  45.1  52.8  59.8  66.1  65.1  55.6  44.9  32.8  25.5  45.2
Precip.     1.11  0.86  0.91  1.05  1.75  1.62  1.00  1.14  1.07  0.78  1.11  1.14 13.54
HDD         1222   966   838   598   383   184    83    95   305   625   967  1228  7494
CDD            0     0     0     0     3    27   114    97    21     0     0     0   262
City:HARB                   
State:MT
Lat:48.14N
Long:107.25W
Elev: 2510
ID:243910
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.25  0.19  0.41  0.71  1.86  1.98  1.87  1.05  0.87  0.52  0.27  0.33 10.31
City:HARDIN                 
State:MT
Lat:45.44N
Long:107.37W
Elev: 2905
ID:243915
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.9  15.9  24.2  33.3  42.5  50.3  55.4  54.1  43.7  33.6  22.1  13.2  33.3
Maximum     35.4  42.7  52.2  63.0  73.0  82.5  90.7  90.2  78.6  65.3  47.2  37.2  63.2
Mean        23.2  29.3  38.2  48.2  57.8  66.4  73.1  72.2  61.2  49.5  34.7  25.2  48.3
Precip.     0.61  0.35  0.67  1.37  1.98  1.66  1.14  0.65  1.28  1.29  0.60  0.47 12.07
HDD         1297   999   831   505   247    84    21    35   176   484   912  1234  6825
CDD            0     0     0     1    23   125   271   256    60     0     0     0   736
City:HARLEM 4 W             
State:MT
Lat:48.33N
Long:108.52W
Elev: 2362
ID:243929
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.2   8.3  18.9  29.2  39.5  47.9  51.5  50.2  39.2  28.7  15.1   4.6  27.9
Maximum     26.0  34.7  46.6  60.4  70.4  78.9  85.2  84.9  73.2  60.7  41.3  30.0  57.7
Mean        13.6  21.5  32.8  44.8  55.0  63.4  68.4  67.6  56.2  44.7  28.2  17.3  42.8
Precip.     0.41  0.32  0.38  0.73  1.96  2.20  1.81  1.02  1.35  0.55  0.39  0.41 11.53
HDD         1593  1218  1000   606   328   116    47    91   294   629  1105  1478  8505
CDD            0     0     0     0    16    68   151   169    29     0     0     0   433
City:HARLOWTON              
State:MT
Lat:46.26N
Long:109.50W
Elev: 4162
ID:243939
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.6  15.0  20.7  28.4  36.7  44.4  48.2  47.1  38.3  30.0  20.3  13.7  29.5
Maximum     34.6  40.2  47.5  57.3  66.7  75.9  83.4  83.2  72.5  60.6  43.3  35.7  58.4
Mean        23.1  27.6  34.1  42.9  51.7  60.2  65.8  65.2  55.4  45.3  31.8  24.7  44.0
Precip.     0.45  0.39  0.73  1.30  2.22  2.71  1.74  1.61  1.15  0.77  0.52  0.49 14.08
HDD         1299  1047   957   665   413   179    79   102   306   612   996  1250  7905
CDD            0     0     0     0     1    34   105   105    17     0     0     0   262
City:HAUGAN 3 E (DEBORGIA)  
State:MT
Lat:47.23N
Long:115.21W
Elev: 3100
ID:243984
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.3  17.4  23.4  28.6  35.2  40.9  43.5  42.0  35.5  28.2  23.1  15.5  28.9
Maximum     31.4  38.2  46.6  57.2  66.0  73.4  81.8  82.7  72.3  57.5  38.9  31.1  56.4
Mean        22.4  27.8  35.0  42.9  50.6  57.2  62.7  62.4  53.9  42.9  31.0  23.3  42.7
Precip.     3.88  2.83  1.90  1.54  1.94  2.16  1.16  1.25  1.45  1.94  3.48  3.61 27.14
HDD         1322  1042   930   663   446   240   122   133   338   686  1021  1293  8236
CDD            0     0     0     0     0     5    50    51     6     0     0     0   112
City:HAVRE CITY CO AP       
State:MT
Lat:48.33N
Long:109.46W
Elev: 2585
ID:243996
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.7  10.4  20.0  30.0  40.2  48.0  52.0  51.3  40.7  29.8  17.3   7.8  29.3
Maximum     25.5  33.4  44.9  58.5  68.8  77.4  84.6  83.9  71.9  59.4  40.8  30.1  56.6
Mean        14.6  21.9  32.5  44.3  54.5  62.7  68.3  67.6  56.3  44.6  29.1  19.0  43.0
Precip.     0.47  0.36  0.70  0.87  1.84  1.90  1.51  1.20  1.03  0.62  0.45  0.51 11.46
HDD         1546  1201   999   613   324   113    33    49   270   622  1067  1410  8247
CDD            0     0     0     1    10    59   146   141    19     1     0     0   377
City:HAXBY 18 SW            
State:MT
Lat:47.34N
Long:106.42W
Elev: 2651
ID:244007
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      4.0  10.9  19.9  29.3  39.6  48.4  52.5  51.5  40.8  31.0  18.0   7.4  29.4
Maximum     28.8  36.4  46.6  59.2  70.2  79.5  86.6  86.4  74.3  61.4  42.5  32.7  58.7
Mean        16.4  23.7  33.3  44.3  54.9  64.0  69.6  69.0  57.6  46.2  30.3  20.1  44.1
Precip.     0.38  0.23  0.50  0.90  2.29  2.31  1.69  1.40  1.36  0.84  0.45  0.49 12.84
HDD         1506  1158   984   623   326   125    42    62   259   583  1043  1394  8105
CDD            0     0     0     0    13    93   183   183    34     0     0     0   506
City:HEBGEN DAM             
State:MT
Lat:44.52N
Long:111.20W
Elev: 6489
ID:244038
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      2.7   5.1  13.1  22.9  31.9  38.7  43.5  42.9  35.5  28.0  17.2   4.6  23.8
Maximum     21.4  27.1  36.3  45.9  57.8  68.2  76.9  76.6  66.4  52.1  32.7  21.5  48.6
Mean        12.1  16.1  24.7  34.4  44.9  53.5  60.2  59.8  51.0  40.1  25.0  13.1  36.2
Precip.     3.07  2.40  2.61  1.83  2.97  3.13  2.00  1.88  1.87  1.72  2.57  3.25 29.30
HDD         1642  1369  1250   918   626   349   172   181   424   775  1201  1610 10517
CDD            0     0     0     0     0     3    22    17     3     0     0     0    45
City:HELENA AP              
State:MT
Lat:46.36N
Long:111.58W
Elev: 3828
ID:244055
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.9  15.6  23.5  31.2  39.8  47.5  52.3  50.8  41.2  31.2  20.3  11.3  31.2
Maximum     30.5  37.3  46.8  56.9  65.9  75.0  83.4  82.5  71.0  58.4  41.5  31.5  56.7
Mean        20.2  26.4  35.1  44.1  52.9  61.2  67.8  66.7  56.1  44.8  30.9  21.4  44.0
Precip.     0.52  0.38  0.63  0.91  1.78  1.82  1.34  1.29  1.05  0.66  0.48  0.46 11.32
HDD         1397  1093   932   634   384   157    42    56   283   631  1018  1348  7975
CDD            0     0     0     0     3    39   122   100    13     0     0     0   277
City:HERON 2 NW             
State:MT
Lat:48.04N
Long:115.59W
Elev: 2240
ID:244084
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     19.8  22.6  26.7  31.8  38.3  43.9  46.6  45.7  39.5  32.6  28.0  21.3  33.1
Maximum     31.7  37.3  46.1  57.4  66.4  73.2  80.6  80.3  69.6  55.1  39.2  31.9  55.7
Mean        25.8  30.0  36.4  44.6  52.4  58.6  63.6  63.0  54.6  43.9  33.6  26.6  44.4
Precip.     4.27  3.38  2.68  2.22  2.81  2.62  1.46  1.35  1.72  2.24  4.55  4.46 33.76
HDD         1217   981   886   612   394   207   104   118   322   656   942  1190  7629
CDD            0     0     0     0     1    13    62    56     8     0     0     0   140
City:HIGHWOOD 7 NE          
State:MT
Lat:47.39N
Long:110.40W
Elev: 3600
ID:244133
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.66  0.46  1.06  1.52  3.15  3.15  1.73  1.75  1.53  1.07  0.65  0.76 17.49
City:HINGHAM 12 N           
State:MT
Lat:48.44N
Long:110.27W
Elev: 2930
ID:244174
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.23  0.17  0.38  0.64  1.73  2.09  1.29  1.18  1.13  0.59  0.29  0.20  9.92
City:HINSDALE 4 SW          
State:MT
Lat:48.21N
Long:107.09W
Elev: 2675
ID:244180
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      6.0  12.8  22.3  33.1  43.4  51.7  56.8  55.8  45.3  35.0  21.3  10.0  32.8
Maximum     20.9  28.5  40.6  55.8  67.5  76.5  83.0  82.6  69.6  56.1  36.5  25.0  53.6
Mean        13.5  20.7  31.5  44.5  55.5  64.1  69.9  69.2  57.5  45.6  28.9  17.5  43.2
Precip.     0.42  0.35  0.74  1.23  2.74  2.85  1.89  1.50  1.45  0.90  0.64  0.45 15.16
HDD         1599  1242  1039   618   312   115    43    77   279   604  1083  1472  8483
CDD            0     0     0     1    17    88   194   207    52     0     0     0   559
City:HOLTER DAM             
State:MT
Lat:46.59N
Long:112.01W
Elev: 3487
ID:244241
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     18.8  22.3  27.7  34.6  42.3  49.6  53.7  53.2  45.6  39.5  30.0  22.1  36.6
Maximum     35.8  40.9  48.3  57.9  67.4  76.4  84.5  84.5  72.8  60.6  45.0  37.5  59.3
Mean        27.3  31.6  38.0  46.3  54.9  63.0  69.1  68.9  59.2  50.1  37.5  29.8  48.0
Precip.     0.41  0.27  0.51  1.24  2.35  1.89  1.45  1.37  1.22  0.78  0.39  0.34 12.22
HDD         1169   935   836   563   322   135    42    49   213   464   825  1091  6644
CDD            0     0     0     0     7    75   169   168    38     0     0     0   457
City:HUNGRY HORSE DAM       
State:MT
Lat:48.21N
Long:114.01W
Elev: 3160
ID:244328
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.0  18.6  24.3  31.7  39.6  45.9  50.3  49.6  40.8  32.8  25.3  18.5  32.8
Maximum     29.5  34.5  42.9  53.7  63.9  72.0  80.1  79.9  66.5  52.2  37.3  30.7  53.6
Mean        22.8  26.6  33.6  42.7  51.8  59.0  65.2  64.8  53.7  42.5  31.3  24.6  43.2
Precip.     3.36  2.56  2.46  2.38  3.15  3.51  2.23  1.91  2.66  2.83  3.97  3.80 34.82
HDD         1310  1076   974   669   413   212   109   111   355   697  1011  1253  8190
CDD            0     0     0     0     3    31   114   103    14     0     0     0   265
City:HUNTLEY EXPERIMENT STN 
State:MT
Lat:45.55N
Long:108.15W
Elev: 3000
ID:244345
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      6.7  12.6  20.7  29.7  39.1  47.6  52.0  50.4  39.8  29.0  17.4   8.8  29.5
Maximum     33.9  41.4  50.7  61.0  69.9  79.5  86.9  86.7  75.4  63.5  46.6  36.6  61.0
Mean        20.3  27.0  35.7  45.4  54.5  63.6  69.5  68.6  57.6  46.3  32.0  22.7  45.3
Precip.     0.59  0.48  0.91  1.60  2.37  1.89  1.47  1.05  1.42  1.15  0.63  0.61 14.17
HDD         1385  1064   908   590   331   115    38    54   249   581   991  1310  7616
CDD            0     0     0     0     6    72   176   164    27     0     0     0   445
City:HYSHAM                 
State:MT
Lat:46.18N
Long:107.14W
Elev: 2660
ID:244358
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.5  14.9  23.6  32.9  42.7  51.7  56.3  55.1  44.7  34.4  22.3  12.9  33.4
Maximum     31.9  39.4  49.8  60.8  70.1  79.4  86.3  85.5  74.4  62.0  43.9  34.2  59.8
Mean        20.7  27.2  36.7  46.9  56.4  65.6  71.3  70.3  59.6  48.2  33.1  23.6  46.6
Precip.     0.51  0.34  0.82  1.31  2.52  1.93  1.48  0.93  1.40  1.19  0.59  0.46 13.48
HDD         1373  1060   878   545   284    87    25    41   207   520   957  1286  7263
CDD            0     0     0     1    17   103   219   205    44     0     0     0   589
City:HYSHAM 25 SSE          
State:MT
Lat:45.56N
Long:107.08W
Elev: 3100
ID:244364
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.4  12.2  21.5  30.2  39.0  47.4  51.9  50.3  40.0  29.4  18.1   8.6  29.5
Maximum     31.7  38.2  47.4  57.9  68.0  78.3  87.1  87.2  74.3  61.1  44.0  34.8  59.2
Mean        18.6  25.2  34.5  44.1  53.5  62.9  69.5  68.8  57.2  45.3  31.1  21.7  44.4
Precip.     0.65  0.50  0.93  1.37  2.22  2.36  1.49  0.87  1.32  1.29  0.75  0.62 14.37
HDD         1441  1114   949   629   363   144    44    65   268   613  1019  1342  7991
CDD            0     0     0     0     6    79   184   181    32     0     0     0   482
City:ILIAD                  
State:MT
Lat:47.48N
Long:109.49W
Elev: 2965
ID:244368
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      6.3  13.5  22.2  32.3  41.0  49.0  53.0  52.3  41.4  30.6  18.5   9.4  30.8
Maximum     28.4  36.1  46.4  58.3  68.1  77.0  84.2  84.1  72.3  59.5  41.6  31.5  57.3
Mean        17.4  24.8  34.3  45.3  54.6  63.0  68.6  68.2  56.9  45.1  30.1  20.5  44.1
Precip.     0.58  0.43  0.68  1.15  2.34  2.28  1.57  1.36  1.14  0.67  0.48  0.41 13.09
HDD         1476  1125   953   590   327   123    52    73   285   618  1050  1381  8053
CDD            0     0     0     0     4    64   163   172    41     0     0     0   444
City:INGOMAR 14 NE          
State:MT
Lat:46.44N
Long:107.12W
Elev: 2795
ID:244386
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.9  11.0  20.6  30.4  40.3  49.6  54.6  52.9  41.2  29.9  16.7   6.7  29.8
Maximum     31.0  38.5  48.8  60.7  70.7  80.1  88.3  87.8  75.8  62.6  43.9  34.0  60.2
Mean        17.5  24.8  34.7  45.6  55.5  64.9  71.5  70.4  58.5  46.3  30.3  20.4  45.0
Precip.     0.44  0.28  0.52  1.07  2.26  2.30  1.49  0.91  1.27  0.81  0.48  0.47 12.30
HDD         1475  1127   938   584   310   107    27    54   238   580  1041  1385  7866
CDD            0     0     0     0    14   102   225   220    43     0     0     0   604
City:JACKSON                
State:MT
Lat:45.22N
Long:113.25W
Elev: 6480
ID:244447
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      6.4   7.8  14.2  21.4  29.3  35.2  39.0  37.7  30.4  23.9  14.2   6.6  22.2
Maximum     28.0  32.6  39.8  48.1  57.0  66.6  74.9  75.7  65.2  52.8  36.5  27.6  50.4
Mean        17.2  20.2  27.0  34.8  43.2  50.9  57.0  56.7  47.8  38.4  25.4  17.1  36.3
Precip.     0.61  0.47  0.74  1.02  1.68  1.75  1.19  1.17  1.03  0.87  0.72  0.54 11.79
HDD         1482  1255  1178   907   678   424   261   269   517   826  1189  1485 10471
CDD            0     0     0     0     0     1    11    11     0     0     0     0    23
City:JOLIET                 
State:MT
Lat:45.29N
Long:108.59W
Elev: 3700
ID:244506
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.6  15.1  23.0  30.4  39.5  47.3  52.6  50.8  41.1  31.0  20.2  11.9  31.0
Maximum     33.8  40.2  48.9  57.6  67.8  77.9  84.8  83.8  72.5  60.6  44.0  35.7  59.0
Mean        21.7  27.7  36.0  44.0  53.7  62.6  68.7  67.3  56.8  45.8  32.1  23.8  45.0
Precip.     0.74  0.63  1.27  1.96  2.96  1.72  1.10  1.08  1.42  1.55  0.70  0.64 15.77
HDD         1343  1047   902   630   356   131    42    66   275   595   989  1277  7653
CDD            0     0     0     0     4    59   158   136    28     0     0     0   385
City:JOPLIN                 
State:MT
Lat:48.34N
Long:110.46W
Elev: 3325
ID:244512
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      6.3  11.6  20.7  30.0  39.2  46.5  50.7  50.2  40.1  30.9  18.2   9.5  29.5
Maximum     28.4  34.7  44.5  57.4  67.8  75.6  83.2  82.8  71.6  59.3  40.7  30.9  56.4
Mean        17.4  23.2  32.6  43.7  53.5  61.1  67.0  66.5  55.9  45.1  29.5  20.2  43.0
Precip.     0.25  0.18  0.42  0.69  1.99  2.01  1.21  1.25  0.88  0.46  0.29  0.23  9.86
HDD         1477  1172  1004   639   362   162    62    97   308   616  1067  1388  8354
CDD            0     0     0     0     4    43   122   144    34     0     0     0   347
City:JORDAN                 
State:MT
Lat:47.19N
Long:106.55W
Elev: 2640
ID:244522
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      0.7   8.4  18.7  29.8  40.0  49.9  54.3  52.5  39.6  29.3  15.1   5.3  28.6
Maximum     27.4  36.1  47.8  59.9  70.3  80.9  88.4  88.3  75.6  62.6  42.7  31.4  59.3
Mean        14.1  22.3  33.3  44.9  55.2  65.4  71.4  70.4  57.6  46.0  28.9  18.4  44.0
Precip.     0.51  0.36  0.61  0.98  2.19  2.27  1.73  1.19  1.23  0.88  0.44  0.51 12.90
HDD         1580  1197   986   604   319   105    28    55   259   591  1084  1446  8254
CDD            0     0     0     0    15   116   226   221    36     0     0     0   614
City:JORDAN 23 ENE          
State:MT
Lat:47.29N
Long:106.28W
Elev: 2385
ID:244530
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.8  10.3  20.4  30.4  40.8  50.0  54.4  52.6  40.4  29.6  16.8   6.0  29.5
Maximum     27.4  35.0  45.9  58.4  69.5  79.6  86.7  86.5  74.1  60.9  42.5  31.6  58.2
Mean        14.6  22.7  33.2  44.4  55.2  64.8  70.6  69.6  57.3  45.3  29.7  18.8  43.9
Precip.     0.29  0.25  0.38  1.08  1.55  1.88  1.81  1.26  1.19  0.71  0.37  0.39 11.16
HDD         1563  1187   988   618   319   114    32    64   269   612  1061  1433  8260
CDD            0     0     0     0    14   107   203   205    37     0     0     0   566
City:JUDITH GAP             
State:MT
Lat:46.41N
Long:109.45W
Elev: 4690
ID:244538
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.61  0.38  0.85  1.31  2.67  2.82  2.27  1.74  1.26  0.78  0.44  0.52 15.65
City:JUDITH GAP 13 E        
State:MT
Lat:46.40N
Long:109.29W
Elev: 5100
ID:244545
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.0  12.2  17.5  24.9  33.4  41.4  46.6  46.1  37.6  29.2  18.3  11.1  27.3
Maximum     32.8  37.2  43.2  52.7  61.5  69.7  76.8  76.9  66.5  56.3  40.8  33.8  54.0
Mean        20.9  24.7  30.4  38.8  47.5  55.6  61.7  61.5  52.1  42.8  29.6  22.5  40.7
Precip.     0.65  0.43  0.89  1.35  2.41  2.74  2.14  1.70  1.21  0.75  0.50  0.61 15.38
HDD         1367  1129  1074   787   544   298   150   183   401   690  1064  1318  9005
CDD            0     0     0     0     0    15    48    74    13     0     0     0   150
City:KALISPELL GLACIER PK AP
State:MT
Lat:48.18N
Long:114.16W
Elev: 2957
ID:244558
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.8  18.4  24.8  30.8  37.9  43.5  46.7  45.8  37.1  28.4  23.2  16.1  30.5
Maximum     28.9  35.2  44.9  56.0  64.7  71.9  80.2  80.5  69.0  55.3  38.6  30.1  54.6
Mean        21.4  26.8  34.9  43.4  51.3  57.7  63.5  63.2  53.1  41.9  30.9  23.1  42.6
Precip.     1.47  1.15  1.11  1.22  2.04  2.30  1.41  1.25  1.20  0.96  1.45  1.65 17.21
HDD         1359  1079   933   640   411   213    85    94   341   705  1014  1297  8171
CDD            0     0     0     0     3    17    62    63     4     0     0     0   149
City:KNOBS 4 SW             
State:MT
Lat:45.52N
Long:104.10W
Elev: 3086
ID:244715
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.35  0.33  0.57  1.39  2.43  3.07  1.74  1.36  1.12  1.30  0.70  0.28 14.64
City:KREMLIN                
State:MT
Lat:48.31N
Long:110.06W
Elev: 2860
ID:244766
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.39  0.27  0.59  0.90  2.38  2.17  1.52  1.30  1.22  0.69  0.40  0.41 12.24
City:LAKEVIEW               
State:MT
Lat:44.36N
Long:111.49W
Elev: 6710
ID:244820
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      0.7   4.2  11.8  21.7  30.1  36.0  40.3  39.0  31.6  23.5  12.3   2.2  21.1
Maximum     25.1  30.2  38.5  48.7  59.6  69.1  77.5  77.5  67.9  54.4  35.6  25.9  50.8
Mean        12.9  17.2  25.2  35.2  44.9  52.6  58.9  58.3  49.8  39.0  24.0  14.1  36.0
Precip.     0.88  0.96  1.76  1.54  2.60  2.70  1.87  1.59  1.85  1.44  1.22  1.08 19.49
HDD         1615  1338  1237   894   625   376   205   219   458   808  1232  1579 10586
CDD            0     0     0     0     0     2    17    10     1     0     0     0    30
City:LAME DEER              
State:MT
Lat:45.38N
Long:106.40W
Elev: 3300
ID:244839
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.7   9.2  17.3  25.3  34.7  44.1  48.7  47.0  37.0  27.5  16.2   6.5  26.4
Maximum     37.1  44.4  52.8  63.1  71.9  81.5  90.3  90.3  78.9  65.0  46.8  38.5  63.4
Mean        20.4  26.8  35.1  44.2  53.3  62.8  69.5  68.7  58.0  46.3  31.5  22.5  44.9
Precip.     0.52  0.42  0.86  1.43  2.72  2.40  1.43  0.83  1.25  1.26  0.69  0.53 14.34
HDD         1382  1070   929   624   370   143    35    63   244   581  1005  1317  7763
CDD            0     0     0     0     7    76   173   177    33     0     0     0   466
City:LAUREL 3 WSW           
State:MT
Lat:45.40N
Long:108.49W
Elev: 3319
ID:244894
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.75  0.45  1.00  1.54  2.64  1.72  1.14  0.95  1.33  1.31  0.61  0.66 14.10
City:LENNEP 5 SW            
State:MT
Lat:46.22N
Long:110.36W
Elev: 5600
ID:244954
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.3  11.1  16.7  23.7  32.1  39.8  43.7  43.0  34.2  26.0  16.2  10.0  25.4
Maximum     27.7  32.2  38.2  47.5  57.4  66.9  74.6  75.3  63.9  52.3  36.2  28.7  50.1
Mean        18.0  21.7  27.5  35.6  44.8  53.4  59.2  59.2  49.1  39.2  26.2  19.4  37.8
Precip.     0.98  0.69  0.97  1.32  2.48  2.64  1.83  1.57  1.35  1.11  0.89  0.90 16.73
HDD         1457  1214  1164   882   628   353   210   214   482   802  1163  1416  9985
CDD            0     0     0     0     0     4    29    32     4     0     0     0    69
City:LEWISTOWN 11 SSE       
State:MT
Lat:46.54N
Long:109.25W
Elev: 4965
ID:244978
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     1.02  0.75  1.68  2.01  3.62  3.63  2.70  2.39  2.10  1.55  1.01  1.17 23.63
City:LEWISTOWN MUNICIPAL AP 
State:MT
Lat:47.03N
Long:109.28W
Elev: 4145
ID:244985
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.6  14.7  21.3  29.2  37.6  44.9  49.5  49.2  40.4  31.1  20.1  12.6  30.1
Maximum     31.9  36.3  42.9  53.2  62.6  71.5  79.5  79.9  68.7  57.3  42.0  34.2  55.0
Mean        21.3  25.5  32.1  41.2  50.1  58.2  64.5  64.6  54.6  44.2  31.1  23.4  42.6
Precip.     0.89  0.57  1.16  1.38  2.92  2.93  2.10  1.89  1.38  1.06  0.74  0.83 17.85
HDD         1355  1105  1020   715   462   226   106   135   335   645  1018  1291  8413
CDD            0     0     0     0     0    22    90   121    22     0     0     0   255
City:LIBBY DAM BASE         
State:MT
Lat:48.25N
Long:115.19W
Elev: 2110
ID:245011
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     18.2  20.5  24.9  30.5  38.1  44.2  48.5  48.1  40.2  32.6  26.5  20.4  32.7
Maximum     33.4  39.6  48.7  59.0  68.0  75.3  83.0  83.5  72.1  58.4  41.9  34.2  58.1
Mean        25.8  30.1  36.8  44.8  53.1  59.8  65.8  65.8  56.2  45.5  34.2  27.3  45.4
Precip.     1.20  1.07  1.11  0.96  1.65  1.87  1.27  1.12  1.08  1.36  1.91  1.64 16.24
HDD         1215   979   874   608   373   186    74    82   288   605   925  1170  7379
CDD            0     0     0     0     2    28    97   107    22     0     0     0   256
City:LIBBY 1 NE RS          
State:MT
Lat:48.24N
Long:115.32W
Elev: 2096
ID:245015
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     18.2  22.2  26.7  31.4  38.5  44.7  48.1  47.1  39.6  32.9  27.6  20.8  33.2
Maximum     33.5  41.3  52.0  62.5  71.6  78.9  86.3  86.8  75.2  59.0  41.0  33.0  60.1
Mean        25.9  31.8  39.4  47.0  55.1  61.8  67.2  67.0  57.4  46.0  34.3  26.9  46.7
Precip.     1.95  1.47  1.31  1.05  1.63  1.68  1.30  1.01  1.02  1.37  2.40  2.21 18.40
HDD         1214   932   796   542   317   142    58    61   252   590   921  1181  7006
CDD            0     0     0     0     8    46   127   121    24     0     0     0   326
City:LIBBY 32 SSE           
State:MT
Lat:47.58N
Long:115.14W
Elev: 3600
ID:245020
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.8  14.9  20.6  26.1  32.1  37.7  39.6  38.3  31.2  24.8  19.6  12.5  25.8
Maximum     30.6  36.6  44.6  55.0  64.1  71.4  78.9  79.3  68.8  55.1  37.7  30.0  54.3
Mean        21.2  25.8  32.6  40.6  48.1  54.6  59.3  58.8  50.0  40.0  28.7  21.3  40.1
Precip.     2.80  2.25  1.84  1.49  2.16  2.23  1.22  1.24  1.30  1.82  3.06  2.94 24.35
HDD         1357  1098  1005   733   523   315   197   213   452   776  1091  1358  9118
CDD            0     0     0     0     0     2    18    19     2     0     0     0    41
City:LIMA                   
State:MT
Lat:44.38N
Long:112.35W
Elev: 6273
ID:245030
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.8   9.4  17.0  24.0  31.7  38.6  43.2  41.9  33.9  25.8  15.2   6.9  24.5
Maximum     27.7  33.0  41.6  51.9  61.2  70.8  79.3  78.3  68.7  56.2  37.7  28.1  52.9
Mean        16.8  21.2  29.3  38.0  46.5  54.7  61.3  60.1  51.3  41.0  26.5  17.5  38.7
Precip.     0.41  0.34  0.63  1.10  2.15  1.96  1.54  1.38  1.11  0.92  0.46  0.43 12.43
HDD         1495  1227  1106   810   576   316   158   177   414   745  1157  1473  9654
CDD            0     0     0     0     0     7    41    26     3     0     0     0    77
City:LINCOLN RANGER STN     
State:MT
Lat:46.57N
Long:112.39W
Elev: 4575
ID:245040
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.8  15.5  21.6  27.3  33.7  39.6  42.7  41.1  33.2  27.3  19.6  12.5  27.1
Maximum     30.3  36.2  44.3  54.2  63.5  71.8  80.0  80.5  69.7  56.4  38.6  31.3  54.7
Mean        20.6  25.9  33.0  40.8  48.6  55.7  61.4  60.8  51.5  41.9  29.1  21.9  40.9
Precip.     1.93  1.30  1.09  1.34  2.30  2.00  1.28  1.59  1.29  1.30  1.37  1.98 18.77
HDD         1378  1096   993   728   509   287   156   169   410   719  1078  1337  8860
CDD            0     0     0     0     0     8    42    38     3     0     0     0    91
City:LINDBERGH LAKE         
State:MT
Lat:47.25N
Long:113.43W
Elev: 4320
ID:245043
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.5  16.9  22.6  28.9  36.6  43.3  47.7  47.0  38.9  31.3  22.7  14.7  30.3
Maximum     28.8  34.7  41.9  50.9  60.3  68.1  76.2  76.5  66.1  52.4  35.5  28.5  51.7
Mean        21.2  25.8  32.3  39.9  48.5  55.7  62.0  61.8  52.5  41.9  29.1  21.6  41.0
Precip.     3.11  2.30  1.92  1.69  2.36  2.35  1.37  1.42  1.57  1.83  3.04  3.22 26.18
HDD         1359  1098  1015   754   514   289   154   163   387   718  1077  1344  8872
CDD            0     0     0     0     0     9    59    63    12     0     0     0   143
City:LINDSAY                
State:MT
Lat:47.14N
Long:105.09W
Elev: 2690
ID:245045
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.46  0.41  0.55  1.19  2.14  2.31  2.05  1.27  1.37  1.03  0.57  0.48 13.83
City:LIVINGSTON 12 S        
State:MT
Lat:45.29N
Long:110.34W
Elev: 4870
ID:245080
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     14.4  17.8  23.4  29.1  36.8  43.5  48.4  47.3  39.8  32.5  23.5  15.6  31.0
Maximum     32.9  38.6  46.0  55.5  64.1  72.6  80.3  80.0  69.4  57.9  42.3  33.7  56.1
Mean        23.7  28.2  34.7  42.3  50.5  58.1  64.4  63.7  54.6  45.2  32.9  24.7  43.6
Precip.     0.66  0.51  1.10  1.44  2.86  2.70  1.74  1.45  1.71  1.34  0.82  0.62 16.95
HDD         1282  1030   939   682   452   225   101   118   323   614   963  1250  7979
CDD            0     0     0     0     0    16    81    77    12     0     0     0   186
City:LIVINGSTON AP          
State:MT
Lat:45.42N
Long:110.27W
Elev: 4653
ID:245086
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.0  20.1  24.9  30.7  38.2  45.5  50.0  48.3  39.7  32.6  23.9  17.7  32.3
Maximum     35.1  40.5  46.9  55.3  65.0  75.0  84.6  84.9  73.0  60.3  43.5  36.3  58.4
Mean        25.6  30.3  35.9  43.0  51.6  60.3  67.3  66.6  56.4  46.5  33.7  27.0  45.4
Precip.     0.64  0.48  0.85  1.58  2.83  2.46  1.54  1.37  1.48  1.20  0.74  0.56 15.73
HDD         1223   971   903   659   417   178    68    79   284   576   939  1178  7475
CDD            0     0     0     0     0    35   140   129    25     0     0     0   329
City:LOMA 1 WNW             
State:MT
Lat:47.57N
Long:110.32W
Elev: 2580
ID:245153
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.7  11.5  21.4  30.9  40.6  48.8  52.8  51.2  40.8  30.4  18.2   9.1  30.1
Maximum     31.6  38.8  48.4  59.8  69.5  78.3  85.7  84.9  73.3  61.6  44.4  34.8  59.3
Mean        18.7  25.2  34.9  45.4  55.1  63.6  69.3  68.1  57.1  46.0  31.3  22.0  44.7
Precip.     0.60  0.38  0.76  1.12  2.14  2.31  1.36  1.51  1.17  0.74  0.52  0.48 13.09
HDD         1438  1116   933   591   317   114    44    88   276   590  1011  1334  7852
CDD            0     0     0     1     8    71   176   183    38     0     0     0   477
City:LUSTRE 4 NNW           
State:MT
Lat:48.27N
Long:105.56W
Elev: 2923
ID:245285
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      2.5   9.6  19.1  30.2  41.1  49.4  53.8  53.0  43.0  32.8  17.9   6.4  29.9
Maximum     21.0  28.3  40.3  54.3  65.9  74.4  81.1  80.8  68.4  55.8  36.4  24.9  52.6
Mean        11.8  19.0  29.7  42.3  53.5  61.9  67.5  66.9  55.7  44.3  27.2  15.7  41.3
Precip.     0.26  0.23  0.50  0.72  1.94  2.20  2.08  1.31  1.22  0.55  0.33  0.32 11.66
HDD         1650  1290  1096   683   369   152    63   100   312   641  1136  1530  9022
CDD            0     0     0     0    12    59   139   159    33     0     0     0   402
City:MAC KENZIE             
State:MT
Lat:46.09N
Long:104.44W
Elev: 2810
ID:245303
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.55  0.33  0.62  1.50  2.32  2.67  1.65  1.15  1.41  1.32  0.60  0.47 14.59
City:MALTA 7 E              
State:MT
Lat:48.24N
Long:107.44W
Elev: 2245
ID:245338
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -2.1   5.2  17.0  29.6  40.3  49.3  53.2  51.2  39.0  28.5  13.6   2.6  27.3
Maximum     22.1  31.3  44.1  59.0  69.4  78.4  84.6  84.2  72.2  59.9  39.3  27.1  56.0
Mean        10.0  18.3  30.6  44.3  54.9  63.9  68.9  67.7  55.6  44.2  26.5  14.9  41.7
Precip.     0.38  0.29  0.59  0.90  2.24  2.57  1.81  1.22  1.19  0.77  0.51  0.41 12.88
HDD         1706  1310  1068   621   328   110    48    84   315   645  1157  1554  8946
CDD            0     0     0     0    13    76   169   166    32     0     0     0   456
City:MALTA 35 S             
State:MT
Lat:47.51N
Long:107.57W
Elev: 2650
ID:245340
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      2.3   8.8  19.1  29.0  39.3  49.3  53.3  51.6  39.3  29.0  15.7   6.3  28.6
Maximum     28.5  36.2  46.8  59.5  69.2  78.5  86.0  85.8  73.7  61.2  42.0  32.7  58.3
Mean        15.4  22.5  33.0  44.3  54.3  63.9  69.7  68.7  56.5  45.1  28.9  19.5  43.5
Precip.     0.32  0.28  0.63  0.98  2.38  2.25  1.86  1.27  1.10  0.56  0.38  0.39 12.40
HDD         1538  1189   993   622   342   117    45    79   288   617  1085  1412  8327
CDD            0     0     0     0     9    85   189   193    33     0     0     0   509
City:MANHATTAN              
State:MT
Lat:45.52N
Long:111.20W
Elev: 4232
ID:245351
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.49  0.45  0.89  1.11  2.12  2.35  1.12  1.03  1.31  0.83  0.59  0.41 12.70
City:MARTINSDALE 3 NNW      
State:MT
Lat:46.30N
Long:110.20W
Elev: 4800
ID:245387
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.0  15.9  21.0  27.4  35.0  42.1  46.1  44.6  36.8  29.9  20.9  14.9  29.0
Maximum     34.1  39.0  44.9  54.6  62.8  70.9  77.6  78.0  68.5  58.2  41.6  34.9  55.4
Mean        23.6  27.5  33.0  41.0  48.9  56.5  61.9  61.3  52.7  44.1  31.3  24.9  42.2
Precip.     0.49  0.32  0.71  1.20  2.20  2.25  1.86  1.56  1.21  0.77  0.53  0.49 13.59
HDD         1285  1051   993   720   499   264   143   159   378   650  1013  1244  8399
CDD            0     0     0     0     0    10    44    45     8     0     0     0   107
City:MEDICINE LAKE 3 SE     
State:MT
Lat:48.29N
Long:104.27W
Elev: 1952
ID:245572
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -1.8   7.2  18.1  30.3  42.3  50.7  54.3  52.6  41.7  30.7  15.7   3.1  28.7
Maximum     17.7  27.0  39.8  55.6  68.1  76.8  82.6  81.9  69.8  57.6  36.0  22.8  53.0
Mean         8.0  17.1  29.0  43.0  55.2  63.8  68.5  67.3  55.8  44.2  25.9  13.0  40.9
Precip.     0.33  0.24  0.54  0.92  1.98  2.59  2.25  1.39  1.30  0.71  0.38  0.36 12.99
HDD         1771  1342  1119   662   320   133    54    95   303   646  1175  1614  9234
CDD            0     0     0     0    16    95   161   165    25     0     0     0   462
City:MELSTONE               
State:MT
Lat:46.36N
Long:107.52W
Elev: 2920
ID:245596
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.7  16.5  23.9  32.3  41.6  50.3  55.1  54.3  44.2  34.5  23.2  14.1  33.5
Maximum     33.6  40.5  49.5  60.2  70.2  80.1  87.7  87.2  75.2  62.5  45.1  35.6  60.6
Mean        22.7  28.5  36.7  46.3  55.9  65.2  71.4  70.8  59.7  48.5  34.2  24.9  47.1
Precip.     0.60  0.42  0.87  1.49  2.72  2.42  1.58  1.22  1.47  1.04  0.61  0.60 15.04
HDD         1312  1022   878   563   295    95    29    47   212   512   926  1245  7136
CDD            0     0     0     0    13   101   228   225    54     0     0     0   621
City:MELVILLE 4 W           
State:MT
Lat:46.06N
Long:110.03W
Elev: 5365
ID:245603
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.3  13.5  18.8  26.0  34.3  41.7  46.6  45.7  37.4  28.8  17.8  11.4  27.7
Maximum     34.0  37.6  42.7  51.1  60.0  68.4  75.6  75.5  65.8  55.6  41.1  35.4  53.6
Mean        22.2  25.6  30.8  38.6  47.2  55.1  61.1  60.6  51.6  42.2  29.5  23.4  40.7
Precip.     0.62  0.50  1.18  1.91  2.84  2.95  2.14  1.64  1.39  1.14  0.75  0.56 17.62
HDD         1328  1105  1061   794   553   306   171   191   411   708  1066  1291  8985
CDD            0     0     0     0     0     7    50    55     9     0     0     0   121
City:MENARD 3 NE            
State:MT
Lat:46.00N
Long:111.08W
Elev: 5053
ID:245608
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.59  0.50  0.95  1.26  2.47  2.32  1.32  1.18  1.43  1.01  0.75  0.64 14.42
City:MILDRED 5 N            
State:MT
Lat:46.45N
Long:104.58W
Elev: 2510
ID:245668
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.5   9.3  17.6  28.5  39.5  49.0  54.6  52.6  40.6  30.6  17.0   5.8  28.9
Maximum     26.0  34.4  45.2  57.7  69.0  78.9  86.7  85.9  74.0  61.2  42.0  30.5  57.6
Mean        13.8  21.9  31.4  43.1  54.3  64.0  70.7  69.3  57.3  45.9  29.5  18.2  43.3
Precip.     0.36  0.22  0.61  1.22  2.03  1.97  1.73  1.25  1.08  1.00  0.40  0.22 12.09
HDD         1589  1209  1042   657   350   132    39    67   269   593  1065  1451  8463
CDD            0     0     0     0    17   101   213   200    38     0     0     0   569
City:MILES CITY AP          
State:MT
Lat:46.26N
Long:105.53W
Elev: 2628
ID:245690
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.4  14.3  23.7  34.5  44.9  54.2  60.2  58.9  46.8  35.3  21.6  10.5  34.4
Maximum     27.3  35.2  46.1  58.8  69.5  79.9  87.9  86.8  74.0  60.0  41.8  30.6  58.2
Mean        17.4  24.8  34.9  46.7  57.2  67.1  74.1  72.9  60.4  47.7  31.7  20.6  46.3
Precip.     0.50  0.34  0.58  1.40  2.19  2.42  1.61  1.16  1.19  1.13  0.52  0.45 13.49
HDD         1477  1126   933   553   267    81    20    41   208   537  1000  1377  7620
CDD            0     0     0     1    25   143   300   284    69     0     0     0   822
City:MILLEGAN 14 SE         
State:MT
Lat:46.53N
Long:111.10W
Elev: 4970
ID:245712
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.6  12.1  18.6  25.7  33.6  40.0  43.8  42.9  34.1  26.3  16.6   9.3  26.0
Maximum     31.5  37.0  43.6  53.0  61.7  70.9  78.4  78.2  67.9  56.0  40.0  33.0  54.3
Mean        20.1  24.6  31.1  39.4  47.7  55.5  61.1  60.6  51.0  41.2  28.3  21.2  40.2
Precip.     0.95  0.51  1.36  1.66  2.73  2.59  2.19  1.60  1.81  1.15  0.84  1.01 18.40
HDD         1395  1133  1050   771   538   293   160   180   425   739  1102  1359  9145
CDD            0     0     0     0     0     7    39    42     5     0     0     0    93
City:MISSOULA 2 NE          
State:MT
Lat:46.54N
Long:113.58W
Elev: 3420
ID:245735
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.8  20.9  27.0  32.7  39.6  45.9  50.5  49.9  41.7  32.6  24.5  17.0  33.3
Maximum     32.5  39.3  48.1  57.1  65.3  73.4  82.3  82.2  71.2  57.4  40.5  32.1  56.8
Mean        24.7  30.1  37.6  44.9  52.5  59.7  66.4  66.1  56.5  45.0  32.5  24.6  45.1
Precip.     1.35  1.05  1.21  1.43  2.38  2.10  1.28  1.23  1.30  1.08  1.20  1.43 17.04
HDD         1250   977   851   604   392   191    84    81   282   620   976  1254  7562
CDD            0     0     0     0     3    30   127   113    25     0     0     0   298
City:MISSOULA INTL AP       
State:MT
Lat:46.55N
Long:114.06W
Elev: 3192
ID:245745
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.2  20.5  27.1  32.4  39.3  45.9  50.2  49.3  40.6  31.4  24.0  16.5  32.8
Maximum     30.8  37.4  48.1  58.0  66.1  74.5  83.6  83.2  71.5  57.4  40.0  30.3  56.7
Mean        23.5  29.0  37.6  45.2  52.7  60.2  66.9  66.3  56.1  44.4  32.0  23.4  44.8
Precip.     1.06  0.77  0.96  1.09  1.95  1.73  1.09  1.15  1.08  0.83  0.96  1.15 13.82
HDD         1291  1019   852   596   384   178    55    62   276   637   985  1287  7622
CDD            0     0     0     0     3    33   111    99    10     0     0     0   256
City:MIZPAH 4 NNW           
State:MT
Lat:46.17N
Long:105.18W
Elev: 2480
ID:245754
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.7  11.9  21.8  31.6  41.6  50.7  55.6  53.6  42.1  30.6  17.9   6.8  30.7
Maximum     28.8  36.6  48.0  60.8  71.7  81.6  90.1  89.5  77.0  62.6  43.1  32.1  60.2
Mean        16.3  24.3  34.9  46.2  56.7  66.2  72.9  71.6  59.6  46.6  30.5  19.5  45.4
Precip.     0.45  0.29  0.58  1.40  2.26  2.24  1.67  1.17  1.29  1.11  0.55  0.37 13.38
HDD         1512  1141   933   564   282    95    22    44   214   570  1036  1413  7826
CDD            0     0     0     0    23   130   265   246    50     0     0     0   714
City:MOCCASIN EXPERIMENT STN
State:MT
Lat:47.03N
Long:109.57W
Elev: 4300
ID:245761
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.4  16.3  22.5  30.6  39.2  46.8  51.4  51.1  42.1  33.0  22.4  15.1  31.9
Maximum     34.4  38.4  44.5  53.6  63.0  71.5  79.7  80.3  69.0  58.1  43.4  36.3  56.0
Mean        23.4  27.4  33.5  42.1  51.1  59.2  65.6  65.7  55.6  45.6  32.9  25.7  44.0
Precip.     0.60  0.44  0.90  1.32  2.74  2.81  2.07  1.97  1.46  0.94  0.59  0.58 16.42
HDD         1290  1055   977   687   434   209    92   114   314   604   964  1218  7958
CDD            0     0     0     0     2    33   110   137    30     0     0     0   312
City:MONIDA                 
State:MT
Lat:44.34N
Long:112.19W
Elev: 6785
ID:245811
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.83  0.87  1.08  1.11  1.86  1.76  1.33  1.08  1.11  1.00  0.79  1.00 13.82
City:MOORHEAD 9 NE          
State:MT
Lat:45.11N
Long:105.45W
Elev: 3220
ID:245870
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.5  14.1  22.6  31.6  41.1  50.4  54.9  52.9  42.5  32.0  20.1  10.1  31.7
Maximum     32.3  39.6  49.2  59.6  69.7  79.9  88.1  87.1  75.4  62.1  44.1  34.0  60.1
Mean        19.9  26.9  35.9  45.6  55.4  65.2  71.5  70.0  59.0  47.1  32.1  22.1  45.9
Precip.     0.37  0.30  0.62  1.30  2.22  2.37  1.48  1.06  1.09  1.08  0.48  0.37 12.74
HDD         1398  1068   901   582   310   108    26    44   225   555   987  1332  7536
CDD            0     0     0     0    13   112   227   198    44     0     0     0   594
City:MOSBY 4 ENE            
State:MT
Lat:47.01N
Long:107.49W
Elev: 2790
ID:245872
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.3  12.4  22.7  31.9  41.6  50.4  55.6  54.5  43.7  33.8  19.8   9.6  31.8
Maximum     30.4  38.1  47.6  58.6  68.3  78.7  86.2  86.3  74.0  62.2  44.1  34.4  59.1
Mean        17.9  25.3  35.2  45.3  55.0  64.6  70.9  70.4  58.9  48.0  32.0  22.0  45.5
Precip.     0.50  0.34  0.67  1.09  2.60  2.11  1.68  1.12  1.28  0.84  0.43  0.42 13.08
HDD         1461  1113   926   593   328   110    33    53   235   527   992  1334  7705
CDD            0     0     0     0    16    97   215   219    50     0     0     0   597
City:MYSTIC LAKE            
State:MT
Lat:45.15N
Long:109.44W
Elev: 6558
ID:245961
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     17.8  19.7  23.2  29.1  37.1  45.1  50.9  51.0  42.5  34.8  25.1  19.2  33.0
Maximum     33.2  36.3  41.5  48.9  57.7  66.9  73.8  73.4  63.9  53.4  39.2  33.2  51.8
Mean        25.5  28.0  32.4  39.0  47.4  56.0  62.4  62.2  53.2  44.1  32.2  26.2  42.4
Precip.     1.29  1.18  2.07  2.81  3.78  3.06  2.42  1.91  2.09  2.14  1.51  1.47 25.73
HDD         1225  1036  1013   779   546   285   142   159   371   647   986  1203  8392
CDD            0     0     0     0     0    14    60    73    17     0     0     0   164
City:NEIHART 8 NNW          
State:MT
Lat:47.02N
Long:110.47W
Elev: 5230
ID:246008
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.8  17.2  21.7  28.3  35.8  42.6  46.7  46.4  39.0  32.0  22.5  15.6  30.1
Maximum     34.3  38.6  44.3  52.8  61.6  70.6  78.4  79.0  68.7  57.3  41.3  35.0  55.2
Mean        24.1  27.9  33.0  40.6  48.7  56.6  62.6  62.7  53.9  44.7  31.9  25.3  42.7
Precip.     0.95  0.66  1.36  1.84  3.49  3.32  2.28  2.14  1.98  1.38  1.01  1.01 21.42
HDD         1271  1038   992   734   506   267   133   157   354   630   994  1231  8307
CDD            0     0     0     0     0    14    58    86    19     0     0     0   177
City:NORRIS MADISON PUMP HS 
State:MT
Lat:45.29N
Long:111.38W
Elev: 4745
ID:246157
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     19.4  22.8  27.9  34.2  42.0  49.0  54.6  54.1  45.4  37.1  27.5  20.6  36.2
Maximum     35.2  39.9  46.3  55.1  64.3  73.7  82.4  82.3  71.7  59.1  43.0  35.6  57.4
Mean        27.3  31.4  37.1  44.7  53.2  61.4  68.5  68.2  58.6  48.1  35.3  28.1  46.8
Precip.     0.57  0.47  1.20  1.76  3.18  2.80  1.59  1.58  1.66  1.45  0.73  0.57 17.56
HDD         1169   943   865   610   370   159    54    58   236   523   893  1145  7025
CDD            0     0     0     0     3    49   163   156    42     0     0     0   413
City:NYE 2                  
State:MT
Lat:45.26N
Long:109.48W
Elev: 4840
ID:246190
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     17.6  20.0  24.8  31.1  37.4  43.5  47.6  46.4  39.7  33.0  25.3  18.3  32.1
Maximum     38.7  42.4  49.2  57.6  65.6  73.9  81.9  82.3  72.4  61.3  45.9  39.7  59.2
Mean        28.2  31.2  37.0  44.4  51.5  58.7  64.8  64.4  56.1  47.2  35.6  29.0  45.7
Precip.     0.63  0.58  1.13  2.04  3.08  2.98  1.81  1.45  1.81  1.44  0.74  0.75 18.44
HDD         1143   947   869   619   419   212    93   111   286   553   883  1118  7253
CDD            0     0     0     0     1    23    86    91    17     0     0     0   218
City:OLNEY                  
State:MT
Lat:48.33N
Long:114.34W
Elev: 3165
ID:246218
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.2  12.3  19.8  26.6  34.4  40.5  43.3  41.8  33.6  25.4  18.9  12.3  26.5
Maximum     26.4  34.1  43.6  54.5  64.3  71.7  79.3  79.0  68.1  53.4  34.6  26.8  53.0
Mean        17.8  23.2  31.7  40.6  49.4  56.1  61.3  60.4  50.9  39.4  26.8  19.6  39.8
Precip.     2.39  2.01  1.34  1.37  2.31  2.68  1.79  1.49  1.23  1.42  2.39  2.25 22.67
HDD         1463  1170  1032   735   485   272   155   171   427   794  1147  1410  9261
CDD            0     0     0     0     0     5    41    28     2     0     0     0    76
City:OPHEIM 10 N            
State:MT
Lat:49.00N
Long:106.23W
Elev: 2980
ID:246236
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -2.7   4.9  15.7  26.5  36.7  45.4  49.2  47.7  37.1  27.3  12.8   0.9  25.1
Maximum     19.4  26.5  38.8  55.3  67.2  75.6  81.3  81.8  69.5  56.4  35.8  23.9  52.6
Mean         8.4  15.7  27.3  40.9  52.0  60.5  65.3  64.8  53.3  41.9  24.3  12.4  38.9
Precip.     0.26  0.23  0.38  0.63  2.05  2.80  2.37  1.24  1.26  0.67  0.28  0.31 12.48
HDD         1757  1380  1171   723   410   183    89   126   369   718  1221  1631  9778
CDD            0     0     0     0     5    48    96   119    18     0     0     0   286
City:OPHEIM 12 SSE          
State:MT
Lat:48.42N
Long:106.19W
Elev: 2950
ID:246238
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -4.8   3.4  15.9  27.5  38.1  46.8  51.0  49.6  38.4  28.1  12.5  -0.5  25.5
Maximum     17.7  25.2  37.7  53.1  65.5  74.1  80.2  80.1  67.4  54.4  35.0  22.1  51.0
Mean         6.5  14.3  26.8  40.3  51.8  60.5  65.6  64.9  52.9  41.3  23.8  10.8  38.3
Precip.     0.24  0.20  0.39  0.79  1.93  2.58  2.16  1.25  1.18  0.65  0.30  0.27 11.94
HDD         1817  1419  1184   741   414   178    90   131   380   735  1239  1682 10010
CDD            0     0     0     0     6    42   107   127    16     0     0     0   298
City:OTTER 9 SSW            
State:MT
Lat:45.06N
Long:106.15W
Elev: 4060
ID:246287
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.5  17.8  24.8  33.1  41.8  50.3  56.0  54.9  45.1  34.7  22.8  14.7  34.0
Maximum     32.0  39.1  48.9  59.6  69.5  78.7  87.1  86.9  75.2  60.6  42.4  34.1  59.5
Mean        22.3  28.5  36.9  46.4  55.7  64.5  71.6  70.9  60.2  47.7  32.6  24.4  46.8
Precip.     0.85  0.67  1.32  1.93  2.64  3.24  1.70  1.06  1.38  1.48  1.01  0.87 18.15
HDD         1325  1024   874   560   302   114    31    41   205   538   972  1258  7244
CDD            0     0     0     0    12    98   233   224    59     0     0     0   626
City:OVANDO 9 SSE           
State:MT
Lat:46.54N
Long:113.04W
Elev: 4255
ID:246304
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      4.4   9.2  18.4  24.1  30.7  36.9  39.6  38.1  29.9  21.8  14.8   6.0  22.8
Maximum     29.0  34.7  43.9  54.6  63.9  71.9  79.8  80.4  69.5  57.0  39.2  29.3  54.4
Mean        16.7  22.0  31.2  39.4  47.3  54.4  59.7  59.3  49.7  39.4  27.0  17.7  38.7
Precip.     0.95  0.65  0.55  0.85  1.76  1.67  1.15  1.24  0.99  0.82  0.96  0.99 12.58
HDD         1498  1205  1050   771   549   322   189   201   460   794  1141  1467  9647
CDD            0     0     0     0     0     3    25    22     2     0     0     0    52
City:PENDROY 2 NNW          
State:MT
Lat:48.07N
Long:112.20W
Elev: 4365
ID:246426
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.58  0.37  0.94  1.38  2.79  2.17  1.44  1.93  1.38  0.80  0.50  0.51 14.79
City:PHILIPSBURG R S        
State:MT
Lat:46.18N
Long:113.18W
Elev: 5270
ID:246472
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     14.1  17.0  22.2  27.3  33.7  40.0  42.8  41.8  34.7  28.2  20.6  14.0  28.0
Maximum     32.9  37.4  44.1  52.6  60.8  69.3  77.7  77.9  67.9  57.3  40.9  33.1  54.3
Mean        23.5  27.2  33.2  40.0  47.3  54.7  60.3  59.9  51.3  42.8  30.8  23.6  41.2
Precip.     0.58  0.51  0.88  1.47  2.56  2.18  1.35  1.62  1.48  1.08  0.72  0.59 15.02
HDD         1287  1058   988   751   551   315   177   188   416   690  1029  1284  8734
CDD            0     0     0     0     0     5    30    28     4     0     0     0    67
City:PLENTYWOOD             
State:MT
Lat:48.47N
Long:104.33W
Elev: 2043
ID:246586
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -2.3   6.6  17.7  29.1  40.7  50.2  53.4  51.9  40.2  29.4  15.3   2.7  27.9
Maximum     20.9  29.8  42.0  58.1  70.4  79.0  84.2  83.5  71.5  58.1  37.0  24.4  54.9
Mean         9.3  18.2  29.9  43.6  55.6  64.6  68.8  67.7  55.9  43.8  26.2  13.6  41.4
Precip.     0.34  0.31  0.61  0.82  1.87  2.74  2.24  1.36  1.36  0.72  0.41  0.37 13.15
HDD         1729  1310  1090   643   310   116    46    76   300   658  1165  1594  9037
CDD            0     0     0     0    18   104   164   158    26     0     0     0   470
City:PLEVNA                 
State:MT
Lat:46.25N
Long:104.31W
Elev: 2780
ID:246601
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.3  10.6  19.6  30.0  40.6  49.5  54.6  52.6  41.9  30.9  17.9   6.8  29.9
Maximum     28.2  34.9  45.4  58.4  69.3  79.3  87.2  86.3  74.7  60.8  41.9  31.5  58.2
Mean        15.8  22.8  32.5  44.2  55.0  64.4  70.9  69.5  58.3  45.9  29.9  19.2  44.0
Precip.     0.55  0.44  0.77  1.38  2.28  2.43  1.77  1.44  1.37  1.25  0.59  0.42 14.69
HDD         1527  1183  1008   625   331   127    34    62   248   593  1053  1420  8211
CDD            0     0     0     0    20   109   218   199    46     0     0     0   592
City:POLEBRIDGE             
State:MT
Lat:48.46N
Long:114.17W
Elev: 3520
ID:246615
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.8   9.9  17.2  24.7  32.0  38.3  40.7  39.1  30.9  23.4  17.3   8.4  24.0
Maximum     28.5  35.7  43.4  53.9  62.8  70.3  78.2  78.8  68.0  55.0  37.5  29.1  53.4
Mean        17.2  22.8  30.3  39.3  47.4  54.3  59.5  59.0  49.5  39.2  27.4  18.8  38.7
Precip.     2.23  1.79  1.46  1.21  1.70  2.24  1.57  1.32  1.16  1.34  2.36  2.38 20.76
HDD         1485  1182  1077   771   545   323   191   206   468   799  1128  1434  9609
CDD            0     0     0     0     0     2    20    18     2     0     0     0    42
City:POLSON                 
State:MT
Lat:47.40N
Long:114.12W
Elev: 2990
ID:246635
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     20.5  23.5  28.7  34.9  41.9  48.6  53.5  53.5  45.2  36.5  28.1  21.6  36.4
Maximum     32.6  38.2  46.7  57.2  65.8  73.5  81.5  81.2  70.0  56.6  41.1  33.1  56.5
Mean        26.6  30.9  37.7  46.1  53.9  61.1  67.5  67.4  57.6  46.6  34.6  27.4  46.5
Precip.     1.11  0.88  1.04  1.33  2.32  2.14  1.31  1.32  1.30  1.07  1.15  1.18 16.15
HDD         1192   956   846   568   347   158    62    59   250   573   913  1168  7092
CDD            0     0     0     0     3    40   139   132    28     0     0     0   342
City:POLSON KERR DAM        
State:MT
Lat:47.41N
Long:114.14W
Elev: 2730
ID:246640
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     20.0  22.5  27.7  34.1  41.2  47.7  52.4  52.4  44.1  35.7  27.9  21.3  35.6
Maximum     32.9  39.0  48.2  58.6  66.4  73.6  82.2  82.7  71.2  57.9  41.3  33.3  57.3
Mean        26.5  30.8  38.0  46.4  53.8  60.7  67.3  67.6  57.7  46.8  34.6  27.3  46.5
Precip.     0.97  0.79  0.82  1.15  2.21  2.15  1.37  1.13  1.22  1.00  1.07  1.08 14.96
HDD         1194   959   839   560   351   172    62    57   245   565   912  1168  7084
CDD            0     0     0     0     4    41   133   137    25     0     0     0   340
City:PONY                   
State:MT
Lat:45.39N
Long:111.54W
Elev: 5590
ID:246655
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.3  15.9  21.8  28.8  36.9  43.6  49.4  48.2  39.5  31.2  20.3  13.5  30.1
Maximum     32.3  36.6  42.6  51.3  59.6  68.4  76.5  76.4  66.4  55.3  39.8  33.2  53.2
Mean        22.3  26.3  32.2  40.1  48.3  56.0  63.0  62.3  53.0  43.3  30.1  23.4  41.7
Precip.     0.63  0.68  1.43  1.96  3.02  2.38  1.63  1.51  1.71  1.42  0.91  0.59 17.87
HDD         1323  1085  1016   748   519   281   136   148   375   674  1049  1292  8646
CDD            0     0     0     0     0    11    72    64    14     0     0     0   161
City:POPLAR 2 E             
State:MT
Lat:48.08N
Long:105.09W
Elev: 2000
ID:246660
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.1   9.0  19.6  31.4  43.2  51.7  56.1  54.6  43.4  32.4  18.0   5.5  30.5
Maximum     21.5  31.0  44.5  59.8  71.8  81.0  86.6  86.1  74.3  60.6  39.1  26.2  56.9
Mean        11.3  20.0  32.1  45.6  57.5  66.4  71.4  70.4  58.9  46.5  28.6  15.9  43.7
Precip.     0.29  0.18  0.48  0.88  2.18  2.65  2.06  1.04  1.21  0.70  0.33  0.40 12.40
HDD         1665  1261  1022   585   264    89    32    56   231   572  1094  1524  8395
CDD            0     0     0     3    32   129   230   222    46     0     0     0   662
City:PORT OF MORGAN         
State:MT
Lat:49.00N
Long:107.50W
Elev: 2830
ID:246672
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.8   8.7  19.2  30.7  40.3  48.1  53.1  51.4  41.0  31.2  16.7   5.3  29.0
Maximum     21.4  29.5  41.4  57.7  68.8  76.3  83.3  82.7  71.5  58.6  37.9  25.8  54.6
Mean        11.6  19.1  30.3  44.2  54.6  62.2  68.2  67.1  56.3  44.9  27.3  15.6  41.8
Precip.     0.17  0.17  0.27  0.49  1.71  2.61  1.99  0.93  1.07  0.52  0.39  0.19 10.51
HDD         1655  1286  1077   625   338   150    55    96   296   624  1130  1533  8865
CDD            0     0     0     1    14    67   154   158    33     0     0     0   427
City:POTOMAC                
State:MT
Lat:46.53N
Long:113.34W
Elev: 3620
ID:246685
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.5  11.2  19.3  24.8  32.4  39.2  41.7  39.3  31.8  23.4  16.6   8.2  24.6
Maximum     29.2  36.4  45.6  56.3  65.3  73.1  81.5  81.9  71.2  57.5  38.4  28.8  55.4
Mean        18.4  23.8  32.5  40.6  48.9  56.2  61.6  60.6  51.5  40.5  27.5  18.5  40.1
Precip.     1.48  1.09  0.79  1.01  1.78  1.82  0.97  1.05  1.02  1.02  1.45  1.66 15.14
HDD         1447  1154  1009   733   501   272   149   165   408   761  1124  1442  9165
CDD            0     0     0     0     0     7    43    29     3     0     0     0    82
City:POWDERVILLE 8 NNE      
State:MT
Lat:45.51N
Long:105.02W
Elev: 2800
ID:246691
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.3  13.1  21.2  31.5  41.7  51.1  56.4  54.5  42.9  31.4  19.0   8.3  31.4
Maximum     30.0  37.8  47.7  60.2  71.0  81.6  90.0  89.2  77.1  62.3  43.6  33.1  60.3
Mean        17.7  25.5  34.5  45.9  56.4  66.4  73.2  71.9  60.0  46.9  31.3  20.7  45.9
Precip.     0.47  0.38  0.55  1.59  2.20  2.71  1.63  1.08  1.39  1.38  0.57  0.40 14.35
HDD         1468  1107   947   574   292    95    25    39   209   563  1012  1374  7705
CDD            0     0     0     0    24   134   280   251    59     0     0     0   748
City:POWER 6 SE             
State:MT
Lat:47.39N
Long:111.36W
Elev: 3750
ID:246700
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.44  0.38  0.70  1.06  2.07  1.64  1.29  1.47  1.12  0.73  0.44  0.44 11.78
City:PRYOR 1 S              
State:MT
Lat:45.25N
Long:108.32W
Elev: 4129
ID:246747
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.66  0.58  1.24  1.87  3.19  2.08  1.42  0.99  1.60  1.72  0.90  0.56 16.81
City:RAPELJE 4 S            
State:MT
Lat:45.55N
Long:109.15W
Elev: 4125
ID:246862
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.6  16.3  22.5  30.1  38.4  46.2  51.5  50.7  41.5  32.4  21.7  14.8  31.6
Maximum     36.2  41.4  48.5  57.9  67.1  77.3  85.4  85.0  73.8  61.5  44.8  37.7  59.7
Mean        24.4  28.9  35.5  44.0  52.8  61.8  68.5  67.9  57.7  47.0  33.3  26.3  45.7
Precip.     0.63  0.54  1.02  1.66  2.69  1.94  1.71  1.28  1.35  1.25  0.69  0.55 15.31
HDD         1260  1012   915   631   383   154    61    75   257   561   952  1202  7463
CDD            0     0     0     0     3    57   167   163    37     0     0     0   427
City:RAYMOND BORDER STATION 
State:MT
Lat:49.00N
Long:104.35W
Elev: 2350
ID:246893
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -0.8   7.3  17.6  29.6  40.7  49.7  53.7  52.3  42.1  31.4  16.3   3.5  28.6
Maximum     19.5  27.9  39.8  56.7  69.0  77.4  83.1  83.1  71.5  58.5  36.3  24.0  53.9
Mean         9.4  17.6  28.7  43.2  54.9  63.6  68.4  67.7  56.8  45.0  26.3  13.8  41.3
Precip.     0.21  0.16  0.41  0.86  2.03  2.96  2.35  1.53  1.37  0.65  0.27  0.28 13.08
HDD         1726  1327  1125   658   331   136    61    88   280   622  1162  1588  9104
CDD            0     0     0     2    16    92   165   172    33     0     0     0   480
City:RAYNESFORD 2 NNW       
State:MT
Lat:47.18N
Long:110.45W
Elev: 4215
ID:246902
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     14.1  18.1  23.6  30.7  38.7  46.1  50.5  50.6  42.7  34.8  24.2  17.0  32.6
Maximum     33.8  38.7  44.8  54.9  63.9  72.1  79.7  80.3  69.8  58.4  42.6  35.7  56.2
Mean        24.0  28.4  34.2  42.8  51.3  59.1  65.1  65.5  56.3  46.6  33.4  26.4  44.4
Precip.     0.80  0.63  1.26  1.58  2.98  2.93  1.91  1.67  1.70  1.20  0.86  0.87 18.39
HDD         1273  1026   955   665   426   204    93   114   301   570   949  1198  7774
CDD            0     0     0     0     1    26    95   129    39     0     0     0   290
City:RED LODGE 2 N          
State:MT
Lat:45.13N
Long:109.14W
Elev: 5500
ID:246918
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.8  15.5  21.0  28.6  37.0  44.1  49.3  48.5  40.0  31.7  20.2  13.4  30.1
Maximum     34.1  37.4  43.9  52.7  61.9  71.7  79.2  79.1  68.6  56.7  41.7  35.5  55.2
Mean        23.0  26.5  32.5  40.7  49.5  57.9  64.3  63.8  54.3  44.2  31.0  24.5  42.7
Precip.     1.31  1.06  2.27  2.88  3.96  2.56  1.69  1.37  2.12  2.04  1.38  1.13 23.77
HDD         1304  1079  1009   730   483   240   118   131   340   645  1021  1257  8357
CDD            0     0     0     0     1    27    95    92    18     0     0     0   233
City:REDSTONE               
State:MT
Lat:48.49N
Long:104.57W
Elev: 2110
ID:246927
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -2.3   6.2  16.8  27.5  38.8  47.7  51.1  49.4  38.5  28.6  14.0   2.1  26.5
Maximum     21.5  29.4  41.3  57.7  70.4  79.2  85.0  84.6  72.0  58.5  37.6  25.8  55.3
Mean         9.6  17.8  29.1  42.6  54.6  63.5  68.1  67.0  55.3  43.6  25.8  14.0  40.9
Precip.     0.31  0.22  0.58  0.81  2.00  2.54  2.13  1.61  1.31  0.75  0.36  0.33 12.95
HDD         1719  1321  1115   673   338   134    53    95   314   666  1176  1583  9187
CDD            0     0     0     0    16    88   148   156    21     0     0     0   429
City:RIDGEWAY 1 S           
State:MT
Lat:45.30N
Long:104.27W
Elev: 3320
ID:247034
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.8  10.9  19.7  30.8  40.8  50.1  55.4  53.4  41.8  30.6  17.4   7.0  30.1
Maximum     28.8  35.1  43.9  56.8  67.3  76.4  83.7  83.3  71.8  59.1  41.8  32.2  56.7
Mean        16.3  23.0  31.8  43.8  54.1  63.3  69.6  68.4  56.8  44.9  29.6  19.6  43.4
Precip.     0.46  0.35  0.70  1.48  2.43  2.51  1.75  1.11  1.20  1.24  0.56  0.44 14.23
HDD         1510  1176  1029   637   352   138    50    71   283   624  1062  1407  8339
CDD            0     0     0     0    13    85   191   175    36     0     0     0   500
City:ROBERTS 1 N            
State:MT
Lat:45.23N
Long:109.10W
Elev: 4670
ID:247128
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.53  0.47  0.96  1.57  3.08  1.83  1.09  1.00  1.56  1.44  0.66  0.51 14.70
City:ROCK SPRINGS           
State:MT
Lat:46.49N
Long:106.15W
Elev: 3024
ID:247136
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      6.2  12.7  21.5  31.6  41.9  50.7  56.1  55.5  44.3  33.6  20.1   9.0  31.9
Maximum     27.4  34.1  44.8  57.1  67.6  77.0  85.0  84.7  72.4  59.2  41.1  30.4  56.7
Mean        16.8  23.4  33.2  44.4  54.8  63.9  70.6  70.1  58.4  46.4  30.6  19.7  44.4
Precip.     0.29  0.18  0.34  1.04  2.15  2.32  1.53  0.87  1.17  0.87  0.36  0.25 11.37
HDD         1495  1165   987   620   335   134    41    60   246   577  1032  1405  8097
CDD            0     0     0     0    17    99   213   218    45     0     0     0   592
City:ROCKY BOY              
State:MT
Lat:48.15N
Long:109.47W
Elev: 3691
ID:247148
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.65  0.50  0.74  1.31  2.92  2.47  1.85  1.63  1.44  0.92  0.65  0.63 15.71
City:ROGERS PASS 9 NNE      
State:MT
Lat:47.11N
Long:112.17W
Elev: 4200
ID:247159
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.4  15.5  21.7  29.4  37.6  44.7  49.1  48.1  39.0  31.8  20.5  13.4  30.1
Maximum     32.0  38.0  44.3  53.5  62.5  70.9  79.6  79.3  68.8  57.2  40.3  33.6  55.0
Mean        21.2  26.8  33.0  41.5  50.1  57.8  64.4  63.7  53.9  44.5  30.4  23.5  42.6
Precip.     0.79  0.63  1.13  1.57  3.30  2.58  1.71  1.82  1.61  1.20  0.66  0.77 17.77
HDD         1357  1071   993   706   464   234   110   150   363   636  1038  1287  8409
CDD            0     0     0     0     0    19    89   109    30     0     0     0   247
City:ROUNDUP                
State:MT
Lat:46.27N
Long:108.33W
Elev: 3227
ID:247214
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.5  17.3  24.0  32.3  41.6  49.9  54.7  53.1  42.9  33.6  22.4  14.7  33.3
Maximum     36.3  42.7  50.7  60.3  69.7  79.0  86.5  86.1  74.8  62.8  45.6  37.7  61.0
Mean        24.4  30.0  37.4  46.3  55.7  64.5  70.6  69.6  58.9  48.2  34.0  26.2  47.2
Precip.     0.43  0.36  0.64  1.28  2.35  2.15  1.65  1.29  1.27  1.03  0.34  0.46 13.25
HDD         1259   980   857   562   303   106    31    57   236   521   929  1203  7044
CDD            0     0     0     0    11    90   205   199    51     0     0     0   556
City:ROY 8 NE               
State:MT
Lat:47.26N
Long:108.51W
Elev: 3445
ID:247228
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.7  13.1  21.9  31.0  40.3  48.4  53.0  52.0  42.0  32.1  19.6  10.4  31.0
Maximum     31.7  37.8  46.5  57.6  67.5  76.9  84.6  84.6  72.9  61.1  43.7  34.3  58.3
Mean        19.7  25.5  34.2  44.3  53.9  62.7  68.8  68.3  57.5  46.6  31.7  22.4  44.6
Precip.     0.50  0.31  0.81  1.14  2.73  2.30  1.97  1.53  1.22  0.73  0.44  0.50 14.18
HDD         1405  1108   955   621   350   133    53    83   267   571  1001  1323  7870
CDD            0     0     0     0     6    63   169   186    39     0     0     0   463
City:ROY 24 NE MOBRIDGE     
State:MT
Lat:47.37N
Long:108.42W
Elev: 2313
ID:247234
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.8  10.2  21.1  30.5  40.6  48.8  53.3  51.6  40.3  29.7  16.3   6.4  29.4
Maximum     30.8  39.5  49.5  60.9  70.6  80.3  87.4  87.3  75.4  63.2  44.1  33.5  60.2
Mean        17.3  24.9  35.3  45.7  55.6  64.6  70.4  69.5  57.9  46.5  30.2  20.0  44.8
Precip.     0.48  0.36  0.65  1.00  2.46  2.50  1.95  1.69  1.24  0.68  0.49  0.48 13.98
HDD         1479  1124   922   578   303   100    30    65   250   575  1044  1396  7866
CDD            0     0     0     0    11    87   196   202    35     0     0     0   531
City:RUDYARD 27 N           
State:MT
Lat:48.56N
Long:110.34W
Elev: 3010
ID:247250
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      4.9  11.1  20.6  30.7  40.7  48.1  52.3  51.6  41.4  31.5  17.9   7.7  29.9
Maximum     26.8  33.1  43.3  56.1  67.0  75.0  81.8  81.8  70.3  58.3  39.5  30.6  55.3
Mean        15.9  22.1  32.0  43.4  53.9  61.6  67.1  66.7  55.9  44.9  28.7  19.2  42.6
Precip.     0.25  0.24  0.39  0.81  1.72  2.17  1.39  1.13  1.00  0.42  0.33  0.28 10.13
HDD         1523  1201  1024   649   351   151    59    99   310   624  1090  1421  8502
CDD            0     0     0     0     5    48   122   152    34     0     0     0   361
City:RYEGATE 18 NNW         
State:MT
Lat:46.32N
Long:109.21W
Elev: 4440
ID:247263
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.0  13.5  19.9  28.5  37.9  46.0  51.1  50.5  40.0  30.1  19.0  12.2  29.8
Maximum     32.1  38.3  44.9  54.7  64.0  73.7  80.9  81.4  70.2  58.6  42.7  34.5  56.3
Mean        20.6  25.9  32.4  41.6  51.0  59.9  66.0  66.0  55.1  44.4  30.9  23.4  43.1
Precip.     0.52  0.29  0.62  1.10  1.91  2.34  1.82  1.47  1.06  0.77  0.50  0.47 12.87
HDD         1379  1095  1011   702   437   198    87   106   322   640  1026  1292  8295
CDD            0     0     0     0     2    44   118   135    25     0     0     0   324
City:SACO 1 NNW             
State:MT
Lat:48.28N
Long:107.21W
Elev: 2170
ID:247265
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -2.7   5.2  16.4  28.2  39.9  49.3  53.3  51.0  38.9  27.7  13.8   2.2  26.9
Maximum     22.8  31.4  43.4  59.0  69.5  77.1  83.4  82.7  71.0  58.8  39.5  27.5  55.5
Mean        10.1  18.3  29.9  43.6  54.7  63.2  68.4  66.9  55.0  43.3  26.7  14.9  41.3
Precip.     0.35  0.32  0.58  0.76  1.89  2.38  1.56  1.08  1.15  0.68  0.55  0.41 11.71
HDD         1704  1308  1088   643   325   122    47   100   326   675  1151  1554  9043
CDD            0     0     0     0     7    68   151   157    25     0     0     0   408
City:ST IGNATIUS            
State:MT
Lat:47.19N
Long:114.06W
Elev: 2900
ID:247286
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     19.4  22.6  28.2  33.8  40.5  47.1  50.8  50.3  42.6  34.0  26.8  20.1  34.7
Maximum     33.8  39.6  49.4  59.3  67.7  75.3  83.2  83.5  71.8  58.2  42.1  34.0  58.2
Mean        26.6  31.1  38.8  46.6  54.1  61.2  67.0  66.9  57.2  46.1  34.5  27.1  46.4
Precip.     0.99  0.77  1.16  1.42  2.59  2.30  1.39  1.28  1.36  1.18  1.03  1.07 16.54
HDD         1190   949   812   553   342   157    69    59   254   586   916  1177  7064
CDD            0     0     0     0     3    44   132   117    18     0     0     0   314
City:ST MARY                
State:MT
Lat:48.44N
Long:113.26W
Elev: 4560
ID:247292
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.9  15.6  21.1  28.4  35.3  41.9  45.7  44.5  37.7  32.0  22.1  14.7  29.2
Maximum     31.0  36.7  43.1  53.4  63.0  70.8  78.7  79.7  69.0  55.8  38.8  31.9  54.3
Mean        21.0  26.2  32.1  40.9  49.2  56.4  62.2  62.1  53.4  43.9  30.5  23.3  41.8
Precip.     2.23  1.74  1.80  1.85  2.77  3.07  1.67  1.55  2.05  2.12  2.55  2.22 25.62
HDD         1364  1088  1021   723   491   269   140   156   369   654  1037  1294  8606
CDD            0     0     0     0     0     9    52    67    18     0     0     0   146
City:SAINT REGIS 1 NE       
State:MT
Lat:47.18N
Long:115.05W
Elev: 2660
ID:247318
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.1  19.5  25.3  31.1  36.6  43.2  45.8  45.0  37.5  30.0  23.8  17.7  31.0
Maximum     31.2  38.1  48.0  58.0  67.2  75.3  83.7  84.1  73.1  58.0  39.8  31.5  57.3
Mean        23.7  28.8  36.7  44.6  51.9  59.3  64.8  64.6  55.3  44.0  31.8  24.6  44.2
Precip.     2.22  1.71  1.38  1.44  1.82  1.66  1.14  1.26  1.30  1.56  2.23  2.27 19.99
HDD         1282  1015   879   614   411   190    94    93   304   652   995  1253  7782
CDD            0     0     0     0     4    19    86    79    12     0     0     0   200
City:SAVAGE                 
State:MT
Lat:47.27N
Long:104.20W
Elev: 1985
ID:247382
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.5  11.5  20.8  31.8  43.3  52.3  56.7  55.0  44.3  33.7  19.5   8.0  31.7
Maximum     25.0  33.4  45.4  59.9  71.6  80.5  87.2  86.6  74.6  60.9  40.4  28.8  57.9
Mean        14.3  22.5  33.1  45.9  57.5  66.4  72.0  70.8  59.5  47.3  30.0  18.4  44.8
Precip.     0.35  0.29  0.53  1.09  2.01  2.89  2.18  1.30  1.42  1.01  0.50  0.39 13.96
HDD         1573  1191   989   576   267    94    25    47   214   549  1051  1445  8021
CDD            0     0     0     1    33   137   239   227    47     0     0     0   684
City:SCOBEY 4 NW            
State:MT
Lat:48.50N
Long:105.29W
Elev: 2370
ID:247425
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -3.6   5.5  16.6  27.5  38.6  47.8  51.1  49.3  37.7  28.1  12.6   1.1  26.0
Maximum     19.3  27.7  39.4  56.3  68.1  77.0  81.6  82.3  70.5  56.7  36.0  23.8  53.2
Mean         7.9  16.6  28.0  41.9  53.4  62.4  66.4  65.8  54.1  42.4  24.3  12.5  39.6
Precip.     0.26  0.14  0.54  0.83  1.72  3.02  2.13  1.64  0.88  0.65  0.34  0.33 12.48
HDD         1774  1355  1147   693   370   146    68   106   347   702  1221  1629  9558
CDD            0     0     0     0     9    68   110   131    20     0     0     0   338
City:SEELEY LAKE R S        
State:MT
Lat:47.13N
Long:113.31W
Elev: 4100
ID:247448
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.6  13.8  21.1  28.0  35.5  41.9  44.7  44.1  36.5  29.4  21.6  12.2  28.3
Maximum     29.7  36.6  44.3  54.1  63.4  71.7  80.6  81.4  70.4  56.7  38.2  29.3  54.7
Mean        20.2  25.2  32.7  41.1  49.5  56.8  62.7  62.8  53.5  43.1  29.9  20.8  41.5
Precip.     2.44  1.65  1.30  1.06  1.98  2.17  1.21  1.39  1.32  1.36  2.24  2.54 20.66
HDD         1391  1115  1001   719   483   255   132   128   356   680  1053  1372  8685
CDD            0     0     0     0     0    10    58    57     9     0     0     0   134
City:SHONKIN 7 S            
State:MT
Lat:47.32N
Long:110.35W
Elev: 4300
ID:247540
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     13.8  18.5  24.4  31.8  39.7  46.1  50.3  49.7  42.7  34.5  24.9  18.0  32.9
Maximum     34.1  38.2  44.6  53.8  61.9  70.8  78.8  79.2  68.1  57.1  42.3  35.6  55.4
Mean        24.0  28.4  34.5  42.8  50.8  58.5  64.6  64.5  55.4  45.8  33.6  26.8  44.1
Precip.     1.25  0.98  2.03  2.60  4.43  3.98  2.16  1.96  2.72  1.85  1.30  1.20 26.46
HDD         1274  1026   946   667   442   224   113   131   323   594   942  1184  7866
CDD            0     0     0     0     1    28   100   114    33     0     0     0   276
City:SIDNEY                 
State:MT
Lat:47.44N
Long:104.09W
Elev: 1920
ID:247560
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      2.7  10.7  20.6  31.6  43.3  52.1  56.1  54.6  44.0  33.6  19.4   7.5  31.4
Maximum     24.5  33.0  45.6  60.9  72.6  80.6  86.3  85.9  74.0  60.3  40.0  28.1  57.7
Mean        13.6  21.9  33.1  46.3  58.0  66.4  71.2  70.3  59.0  47.0  29.7  17.8  44.5
Precip.     0.41  0.36  0.56  1.07  2.02  2.80  2.14  1.31  1.50  1.02  0.63  0.49 14.31
HDD         1594  1207   989   564   255    84    24    48   221   560  1060  1463  8069
CDD            0     0     0     2    36   124   217   211    42     0     0     0   632
City:SIMMS 1 NE             
State:MT
Lat:47.30N
Long:111.55W
Elev: 3590
ID:247618
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.35  0.36  0.55  1.09  1.95  2.16  1.44  1.47  1.16  0.70  0.41  0.30 11.94
City:SIMPSON 6 NW           
State:MT
Lat:48.59N
Long:110.18W
Elev: 2740
ID:247620
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.6   8.3  18.6  29.1  38.8  46.6  50.5  49.7  38.9  28.7  15.4   5.0  27.6
Maximum     24.3  32.0  43.7  58.4  69.7  78.0  85.1  84.7  72.5  58.9  39.2  28.3  56.2
Mean        13.0  20.2  31.2  43.8  54.3  62.3  67.8  67.2  55.7  43.8  27.3  16.7  41.9
Precip.     0.33  0.24  0.49  0.66  1.76  2.07  1.37  1.38  1.09  0.49  0.39  0.34 10.61
HDD         1613  1255  1048   638   340   140    55    86   310   658  1132  1498  8773
CDD            0     0     0     0     7    59   142   154    31     0     0     0   393
City:SONNETTE 2 WNW         
State:MT
Lat:45.25N
Long:105.52W
Elev: 3900
ID:247740
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.7  10.1  19.1  28.5  37.7  46.1  51.3  50.0  39.2  29.4  16.1   6.2  28.1
Maximum     30.9  36.8  44.9  55.0  65.0  75.3  84.0  83.6  71.5  58.8  41.8  32.7  56.7
Mean        17.3  23.5  32.0  41.8  51.4  60.7  67.7  66.8  55.4  44.1  29.0  19.5  42.4
Precip.     0.52  0.42  0.79  1.61  2.53  2.51  1.65  1.04  1.25  1.29  0.67  0.50 14.78
HDD         1479  1164  1023   697   426   185    59    82   311   648  1082  1412  8568
CDD            0     0     0     0     3    56   141   139    22     0     0     0   361
City:SPRINGDALE             
State:MT
Lat:45.44N
Long:110.14W
Elev: 4221
ID:247800
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.54  0.35  0.85  1.57  2.65  2.06  1.33  1.13  1.40  1.19  0.60  0.50 14.17
City:STANFORD               
State:MT
Lat:47.09N
Long:110.13W
Elev: 4860
ID:247864
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.9  17.1  23.5  31.3  39.4  46.8  51.6  51.3  42.5  33.5  22.2  14.9  32.3
Maximum     35.2  39.5  45.6  55.3  64.4  73.0  80.3  80.8  70.3  59.4  44.1  37.0  57.1
Mean        24.1  28.3  34.6  43.3  51.9  59.9  66.0  66.1  56.4  46.5  33.2  26.0  44.7
Precip.     0.69  0.48  0.98  1.54  2.84  2.86  2.13  1.86  1.46  0.98  0.63  0.68 17.13
HDD         1270  1027   945   651   409   187    80   107   292   575   956  1211  7710
CDD            0     0     0     0     2    35   109   139    35     0     0     0   320
City:STEVENSVILLE           
State:MT
Lat:46.31N
Long:114.05W
Elev: 3375
ID:247894
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.7  20.0  25.7  31.0  38.2  45.0  48.0  46.5  38.8  30.7  23.7  16.7  31.8
Maximum     34.1  41.2  50.7  60.1  68.1  75.6  83.4  83.5  73.0  60.0  43.2  34.0  58.9
Mean        25.4  30.6  38.2  45.6  53.2  60.3  65.7  65.0  55.9  45.4  33.5  25.4  45.4
Precip.     1.14  0.88  0.76  0.89  1.50  1.47  0.87  1.07  0.97  0.71  1.12  1.11 12.49
HDD         1228   964   832   585   369   164    73    75   283   608   947  1229  7357
CDD            0     0     0     0     2    23    94    74    10     0     0     0   203
City:SULA 3 ENE             
State:MT
Lat:45.51N
Long:113.56W
Elev: 4475
ID:247964
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.7  14.0  21.0  26.5  32.5  38.1  40.3  39.2  31.6  24.7  18.7  10.6  25.6
Maximum     32.3  39.3  47.0  55.3  63.3  71.6  80.2  79.8  70.2  57.9  40.9  31.6  55.8
Mean        21.0  26.7  34.0  40.9  47.9  54.9  60.3  59.5  50.9  41.3  29.8  21.1  40.7
Precip.     0.96  0.80  0.99  1.50  2.25  2.20  1.39  1.41  1.22  1.17  1.18  0.97 16.04
HDD         1365  1074   961   723   530   306   170   189   426   734  1057  1361  8896
CDD            0     0     0     0     0     2    21    18     2     0     0     0    43
City:SUNBURST 8 E           
State:MT
Lat:48.53N
Long:111.44W
Elev: 3700
ID:247996
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      9.5  14.5  22.3  31.3  40.1  47.2  51.3  51.4  41.9  32.9  20.2  12.2  31.2
Maximum     29.5  35.6  44.2  56.5  66.1  73.5  80.7  80.4  70.0  57.9  40.2  31.7  55.5
Mean        19.5  25.1  33.3  43.9  53.1  60.4  66.0  65.9  56.0  45.4  30.2  22.0  43.4
Precip.     0.37  0.30  0.77  1.01  2.18  2.46  1.60  1.62  1.19  0.65  0.51  0.39 13.05
HDD         1411  1119   985   633   371   173    82   108   310   608  1044  1334  8178
CDD            0     0     0     0     2    34   112   136    38     0     0     0   322
City:SUN RIVER 4 S          
State:MT
Lat:47.29N
Long:111.44W
Elev: 3600
ID:248021
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.9  16.2  22.2  30.4  38.7  46.3  49.8  48.8  40.4  33.0  22.8  14.7  31.3
Maximum     34.3  40.0  47.4  57.3  66.0  74.0  81.5  80.8  70.3  59.5  43.4  35.8  57.5
Mean        23.1  28.1  34.8  43.9  52.4  60.2  65.7  64.8  55.4  46.3  33.1  25.3  44.4
Precip.     0.42  0.36  0.67  1.24  2.18  2.08  1.47  1.51  1.06  0.81  0.49  0.42 12.71
HDD         1299  1033   936   634   392   178    79   110   312   582   957  1232  7744
CDD            0     0     0     0     1    33    98   103    22     0     0     0   257
City:SUPERIOR               
State:MT
Lat:47.12N
Long:114.53W
Elev: 2710
ID:248043
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     19.5  22.1  27.3  32.4  39.1  45.7  49.4  49.0  41.0  33.2  26.8  20.3  33.8
Maximum     35.0  43.0  52.8  61.9  70.4  77.9  86.6  86.8  75.9  61.2  42.6  33.7  60.7
Mean        27.3  32.6  40.1  47.2  54.8  61.8  68.0  67.9  58.5  47.2  34.7  27.0  47.3
Precip.     1.48  1.14  1.26  1.19  1.86  1.75  1.05  1.32  1.10  1.14  1.66  1.63 16.58
HDD         1171   908   773   536   322   139    51    49   227   552   910  1178  6816
CDD            0     0     0     0     4    43   145   140    29     0     0     0   361
City:SWAN LAKE              
State:MT
Lat:47.55N
Long:113.50W
Elev: 3100
ID:248087
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.2  16.0  22.1  28.7  35.8  41.4  44.2  42.8  35.6  27.8  21.1  15.0  28.6
Maximum     28.3  35.5  44.5  55.0  64.5  70.9  78.2  77.7  67.1  54.0  36.5  29.0  53.4
Mean        20.3  25.8  33.3  41.9  50.2  56.2  61.2  60.3  51.4  40.9  28.8  22.0  41.0
Precip.     2.98  2.38  1.94  1.65  2.60  2.75  1.53  1.73  1.96  2.15  3.53  3.54 28.74
HDD         1386  1099   983   695   460   273   165   191   412   747  1087  1333  8831
CDD            0     0     0     0     0     6    48    43     2     0     0     0    99
City:SWEETGRASS             
State:MT
Lat:49.00N
Long:111.58W
Elev: 3466
ID:248093
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.4  13.4  21.6  31.0  40.3  47.8  51.9  51.2  42.1  32.6  20.0  11.3  31.0
Maximum     30.4  36.1  44.6  56.6  66.4  74.1  80.8  81.2  70.9  59.4  41.3  32.5  56.2
Mean        19.4  24.8  33.1  43.8  53.4  61.0  66.4  66.2  56.5  46.0  30.7  21.9  43.6
Precip.     0.30  0.23  0.58  1.00  2.61  3.13  1.96  1.94  1.45  0.62  0.45  0.30 14.57
HDD         1413  1127   988   636   365   162    82   101   296   589  1030  1336  8125
CDD            0     0     0     0     4    40   122   137    40     0     0     0   343
City:TERRY                  
State:MT
Lat:46.48N
Long:105.18W
Elev: 2248
ID:248165
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      2.3  10.2  19.9  31.1  42.2  52.3  57.0  55.0  42.9  31.1  17.7   6.1  30.7
Maximum     28.0  35.8  47.0  59.9  71.1  80.9  88.7  88.2  75.6  61.5  43.2  32.4  59.4
Mean        15.2  23.0  33.5  45.5  56.7  66.6  72.9  71.6  59.3  46.3  30.5  19.3  45.0
Precip.     0.31  0.24  0.43  1.06  1.92  2.15  1.55  1.29  1.28  0.94  0.44  0.24 11.85
HDD         1545  1176   979   585   280    89    17    49   224   579  1037  1419  7979
CDD            0     0     0     0    21   137   261   254    51     0     0     0   724
City:TERRY 21 NNW           
State:MT
Lat:47.04N
Long:105.30W
Elev: 3255
ID:248169
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      3.7  10.2  18.8  28.5  38.9  48.0  53.0  51.9  40.7  29.6  16.4   6.6  28.9
Maximum     24.9  31.3  41.5  54.6  65.6  75.0  82.4  81.9  69.6  56.3  38.3  28.0  54.1
Mean        14.3  20.8  30.2  41.6  52.3  61.5  67.7  66.9  55.2  43.0  27.4  17.3  41.5
Precip.     0.44  0.28  0.54  1.20  2.18  2.62  1.86  1.22  1.36  1.04  0.48  0.45 13.67
HDD         1572  1240  1080   704   403   173    71   100   324   683  1130  1479  8959
CDD            0     0     0     0     9    69   155   157    29     0     0     0   419
City:THOMPSON FALLS POWER HS
State:MT
Lat:47.35N
Long:115.21W
Elev: 2380
ID:248211
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     21.6  24.5  29.0  34.1  40.8  47.2  50.9  50.4  42.4  34.5  28.8  22.8  35.6
Maximum     35.1  42.5  52.3  62.5  71.0  78.4  87.5  88.1  77.0  61.4  42.9  34.8  61.1
Mean        28.4  33.5  40.7  48.3  55.9  62.8  69.2  69.3  59.7  48.0  35.9  28.8  48.4
Precip.     2.59  2.04  1.78  1.51  2.27  2.17  1.22  1.22  1.20  1.66  2.66  2.75 23.07
HDD         1136   883   755   501   292   122    45    38   200   527   874  1123  6496
CDD            0     0     0     0    10    54   177   169    40     0     0     0   450
City:TIBER DAM              
State:MT
Lat:48.19N
Long:111.05W
Elev: 2850
ID:248233
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      8.1  13.1  22.6  31.3  41.1  48.7  52.5  51.4  41.8  32.1  20.1  11.1  31.2
Maximum     32.0  38.8  48.9  60.8  70.5  78.6  85.5  85.5  74.9  63.7  45.2  34.6  59.9
Mean        20.1  26.0  35.8  46.1  55.8  63.7  69.0  68.5  58.4  47.9  32.7  22.9  45.6
Precip.     0.34  0.23  0.54  0.86  1.70  2.06  1.19  1.30  0.85  0.60  0.38  0.32 10.37
HDD         1393  1092   906   569   295   115    44    64   240   531   971  1306  7526
CDD            0     0     0     1     9    73   168   170    40     0     0     0   461
City:TOWNSEND               
State:MT
Lat:46.20N
Long:111.32W
Elev: 3840
ID:248324
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.6  16.9  24.3  31.3  39.3  46.6  50.8  49.0  40.2  31.7  22.2  13.7  31.6
Maximum     34.5  41.1  50.3  59.9  68.2  75.8  82.5  82.4  72.4  61.0  44.7  35.6  59.0
Mean        23.6  29.0  37.3  45.6  53.8  61.2  66.7  65.7  56.3  46.4  33.5  24.7  45.3
Precip.     0.35  0.23  0.54  0.71  1.73  2.03  1.36  1.36  1.01  0.60  0.40  0.35 10.67
HDD         1286  1008   858   582   352   156    70    80   279   577   947  1251  7446
CDD            0     0     0     0     2    41   121   102    19     0     0     0   285
City:TRIDENT                
State:MT
Lat:45.57N
Long:111.28W
Elev: 4036
ID:248363
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.8  17.1  24.3  31.3  39.7  46.9  51.4  49.7  40.3  31.7  21.1  12.7  31.5
Maximum     34.0  40.6  48.8  58.8  68.2  77.5  85.5  85.2  73.8  60.9  43.5  35.0  59.3
Mean        22.9  28.9  36.6  45.1  54.0  62.2  68.5  67.5  57.1  46.3  32.3  23.9  45.4
Precip.     0.37  0.29  0.71  1.15  2.33  2.16  1.50  1.18  1.41  0.92  0.54  0.29 12.85
HDD         1305  1011   882   598   346   144    53    60   262   579   981  1276  7497
CDD            0     0     0     0     4    60   159   136    24     0     0     0   383
City:TROUT CREEK R S        
State:MT
Lat:47.52N
Long:115.37W
Elev: 2356
ID:248380
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     19.3  22.1  26.7  31.5  37.7  43.6  46.4  46.0  39.9  33.3  28.5  21.2  33.0
Maximum     34.3  41.0  50.4  60.7  69.1  76.0  84.2  85.3  74.8  60.0  42.0  33.9  59.3
Mean        26.8  31.6  38.6  46.1  53.4  59.8  65.3  65.7  57.4  46.7  35.3  27.6  46.2
Precip.     3.67  2.74  2.21  1.84  2.35  2.26  1.39  1.35  1.40  1.97  3.89  3.90 28.97
HDD         1185   937   820   567   359   177    91    79   248   569   892  1161  7085
CDD            0     0     0     0     1    21   101    99    19     0     0     0   241
City:TROY                   
State:MT
Lat:48.29N
Long:115.54W
Elev: 1929
ID:248390
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     19.8  23.0  27.6  33.1  40.5  46.6  50.0  48.9  41.6  34.4  28.9  21.7  34.7
Maximum     32.7  39.6  49.9  60.8  68.9  76.3  84.7  85.2  73.5  58.2  40.5  32.9  58.6
Mean        26.3  31.3  38.8  47.0  54.7  61.5  67.4  67.1  57.6  46.3  34.7  27.3  46.7
Precip.     3.00  2.29  1.90  1.63  2.04  1.97  1.38  1.19  1.30  1.89  3.66  3.21 25.46
HDD         1202   943   815   542   323   137    60    62   249   581   909  1169  6992
CDD            0     0     0     0     4    30   133   125    25     0     0     0   317
City:TROY 18 N              
State:MT
Lat:48.43N
Long:115.53W
Elev: 2715
ID:248395
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.8  20.2  24.5  29.7  36.9  43.1  46.7  46.2  39.0  31.7  25.2  18.3  31.5
Maximum     30.5  38.0  46.7  57.9  68.0  74.6  82.2  83.1  72.0  57.1  38.7  30.1  56.6
Mean        23.7  29.1  35.6  43.8  52.5  58.9  64.5  64.7  55.5  44.4  32.0  24.2  44.1
Precip.     4.21  3.16  2.73  2.48  2.61  2.67  1.63  1.44  1.97  3.03  4.81  4.71 35.45
HDD         1282  1005   912   636   393   203    99    86   298   638   991  1265  7808
CDD            0     0     0     0     4    20    81    75    13     0     0     0   193
City:TURNER 11 N            
State:MT
Lat:49.00N
Long:108.23W
Elev: 2982
ID:248415
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      0.7   7.5  18.4  28.6  39.1  47.3  50.9  49.8  40.2  30.4  16.1   5.4  27.9
Maximum     23.1  30.0  41.9  56.9  67.4  75.8  81.8  82.6  70.7  58.0  37.8  26.4  54.4
Mean        11.9  18.8  30.2  42.8  53.3  61.6  66.4  66.2  55.5  44.2  27.0  15.9  41.2
Precip.     0.29  0.18  0.39  0.54  1.76  2.61  1.85  0.96  1.28  0.44  0.59  0.36 11.25
HDD         1646  1294  1080   667   372   155    69   105   316   645  1141  1523  9013
CDD            0     0     0     0     7    51   112   142    29     0     0     0   341
City:TWIN BRIDGES           
State:MT
Lat:45.33N
Long:112.20W
Elev: 4625
ID:248430
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     10.5  14.2  20.8  27.2  35.2  42.0  45.5  43.2  35.1  27.1  18.5  11.0  27.5
Maximum     34.4  40.5  48.4  57.7  66.6  75.6  83.3  82.2  72.0  60.3  43.3  34.5  58.2
Mean        22.5  27.4  34.6  42.5  50.9  58.8  64.4  62.7  53.6  43.7  30.9  22.8  42.9
Precip.     0.22  0.18  0.48  0.85  1.86  1.80  1.19  1.07  1.06  0.61  0.36  0.23  9.91
HDD         1320  1055   942   676   437   202    91   116   349   660  1023  1309  8180
CDD            0     0     0     0     0    17    72    45     5     0     0     0   139
City:VALENTINE              
State:MT
Lat:47.20N
Long:108.30W
Elev: 2910
ID:248498
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.1   9.2  19.0  29.1  38.8  47.6  51.5  50.5  38.8  27.8  14.9   5.6  27.8
Maximum     29.5  37.2  46.6  57.4  67.2  76.7  84.2  83.7  71.6  59.9  43.0  32.9  57.5
Mean        15.3  23.2  32.8  43.3  53.0  62.2  67.9  67.1  55.2  43.9  29.0  19.3  42.7
Precip.     0.62  0.32  0.71  1.15  2.78  1.85  1.85  1.43  1.04  0.69  0.52  0.54 13.50
HDD         1540  1171   999   653   377   140    59    91   322   657  1082  1418  8509
CDD            0     0     0     0     5    55   149   156    27     0     0     0   392
City:VALIER                 
State:MT
Lat:48.19N
Long:112.15W
Elev: 3810
ID:248501
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.5  15.8  22.8  31.4  40.4  48.1  52.5  51.8  43.1  34.1  22.1  14.7  32.4
Maximum     32.3  37.3  44.4  55.2  64.6  72.5  79.6  80.0  69.9  58.9  41.5  34.0  55.9
Mean        21.9  26.6  33.6  43.3  52.5  60.3  66.1  65.9  56.5  46.5  31.8  24.4  44.1
Precip.     0.31  0.24  0.50  0.92  2.24  2.63  1.33  1.65  1.14  0.60  0.37  0.29 12.22
HDD         1336  1077   973   651   390   174    74    95   290   575   995  1261  7891
CDD            0     0     0     0     2    33   106   123    34     0     0     0   298
City:VIDA 6 NE              
State:MT
Lat:47.53N
Long:105.27W
Elev: 2400
ID:248569
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      2.8  11.0  20.6  31.3  41.9  50.5  55.0  53.6  42.7  32.3  18.5   7.4  30.6
Maximum     24.7  33.0  44.1  59.1  70.5  79.4  86.0  85.6  73.1  59.4  40.0  28.8  57.0
Mean        13.8  22.0  32.4  45.2  56.2  65.0  70.5  69.6  57.9  45.9  29.3  18.1  43.8
Precip.     0.45  0.32  0.66  1.14  2.03  2.70  1.98  1.27  1.34  0.97  0.57  0.45 13.88
HDD         1588  1205  1012   595   294   101    35    77   260   594  1073  1454  8288
CDD            0     0     0     1    20   100   205   220    47     0     0     0   593
City:VIRGINIA CITY          
State:MT
Lat:45.18N
Long:111.57W
Elev: 5773
ID:248597
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.1  15.1  21.0  27.7  35.9  42.8  48.5  47.5  39.0  30.2  19.6  12.6  29.3
Maximum     33.7  38.0  44.0  52.7  61.3  71.0  79.2  78.7  68.5  57.0  41.1  34.1  54.9
Mean        22.9  26.6  32.5  40.2  48.6  56.9  63.9  63.1  53.8  43.6  30.4  23.4  42.2
Precip.     0.74  0.55  1.02  1.44  2.58  2.48  1.64  1.45  1.26  1.08  0.90  0.68 15.82
HDD         1304  1076  1007   744   509   255   117   125   351   663  1039  1292  8482
CDD            0     0     0     0     0    12    82    65    13     0     0     0   172
City:VOLBORG                
State:MT
Lat:45.51N
Long:105.41W
Elev: 2980
ID:248607
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.52  0.31  0.75  1.76  2.48  2.31  1.47  0.98  1.24  1.26  0.64  0.51 14.23
City:WARRICK 2 NW           
State:MT
Lat:48.05N
Long:109.39W
Elev: 4250
ID:248693
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.97  0.53  0.98  1.39  2.36  3.53  1.72  1.45  1.30  0.89  0.92  1.23 17.27
City:WEBSTER 3 E            
State:MT
Lat:46.03N
Long:104.11W
Elev: 3140
ID:248732
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.44  0.34  0.67  1.44  2.50  3.04  1.86  1.26  1.33  1.39  0.62  0.37 15.26
City:WESTBY                 
State:MT
Lat:48.52N
Long:104.03W
Elev: 2105
ID:248777
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -4.5   3.7  15.1  28.3  41.2  50.5  54.6  52.1  40.3  28.9  14.0   1.0  27.1
Maximum     16.9  24.9  36.6  53.2  65.6  73.9  79.5  79.3  67.3  54.6  34.2  21.9  50.7
Mean         6.2  14.3  25.9  40.8  53.4  62.2  67.1  65.7  53.8  41.8  24.1  11.5  38.9
Precip.     0.39  0.26  0.56  0.90  1.76  3.00  2.48  1.55  1.41  0.71  0.40  0.41 13.83
HDD         1825  1420  1213   728   369   155    72   112   353   720  1228  1661  9856
CDD            0     0     0     0    10    71   135   134    16     0     0     0   366
City:WESTERN AG RESEARCH CNT
State:MT
Lat:46.19N
Long:114.07W
Elev: 3597
ID:248783
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     17.6  20.8  26.6  31.8  38.5  44.8  48.7  47.6  40.1  32.0  24.1  17.2  32.5
Maximum     35.2  42.2  51.2  60.5  68.5  76.5  84.4  83.9  72.7  60.4  43.5  34.6  59.5
Mean        26.4  31.5  38.9  46.2  53.5  60.7  66.6  65.8  56.4  46.2  33.8  25.9  46.0
Precip.     0.71  0.54  0.68  0.99  1.72  1.62  0.94  1.14  1.03  0.77  0.80  0.75 11.69
HDD         1197   938   809   566   359   162    62    70   275   583   936  1213  7170
CDD            0     0     0     0     2    31   110    93    17     0     0     0   253
City:WEST GLACIER           
State:MT
Lat:48.30N
Long:113.59W
Elev: 3154
ID:248809
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     15.5  18.7  24.2  30.3  37.7  44.1  48.2  47.4  39.1  31.7  25.0  18.0  31.7
Maximum     29.3  34.8  43.1  54.2  64.5  71.8  78.9  78.8  67.1  53.4  37.0  29.6  53.5
Mean        22.4  26.8  33.7  42.3  51.1  58.0  63.6  63.1  53.1  42.6  31.0  23.8  42.6
Precip.     3.16  2.19  1.83  1.78  2.66  3.22  1.97  1.67  1.87  2.07  3.10  3.22 28.74
HDD         1320  1070   972   683   431   223   114   123   362   695  1019  1278  8290
CDD            0     0     0     0     0    12    70    63     5     0     0     0   150
City:WEST YELLOWSTONE       
State:MT
Lat:44.39N
Long:111.06W
Elev: 6659
ID:248857
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      1.4   4.2  11.9  20.6  29.3  36.3  40.7  38.5  30.1  21.9  10.8   1.2  20.6
Maximum     23.9  30.3  38.2  46.8  58.3  68.8  77.7  76.7  65.5  51.7  32.8  23.6  49.5
Mean        12.7  17.3  25.1  33.7  43.8  52.6  59.2  57.6  47.8  36.8  21.8  12.4  35.1
Precip.     1.96  1.77  1.82  1.51  2.19  2.21  1.84  1.36  1.47  1.30  2.01  2.30 21.74
HDD         1623  1336  1238   940   658   376   199   244   517   875  1296  1632 10934
CDD            0     0     0     0     0     2    19    13     1     0     0     0    35
City:WHITEFISH              
State:MT
Lat:48.25N
Long:114.22W
Elev: 3100
ID:248902
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.9  15.4  22.3  29.3  37.4  44.4  48.7  47.8  38.1  29.6  22.9  15.8  30.4
Maximum     29.4  35.8  44.2  55.9  64.9  71.7  80.1  80.3  68.7  55.2  37.8  30.3  54.5
Mean        21.2  25.6  33.3  42.6  51.2  58.1  64.4  64.1  53.4  42.4  30.4  23.1  42.5
Precip.     1.87  1.44  1.23  1.43  2.48  2.87  1.97  1.49  1.21  1.03  2.00  2.10 21.12
HDD         1359  1103   985   672   429   222   100   112   359   701  1039  1301  8382
CDD            0     0     0     0     0    14    82    83    10     0     0     0   189
City:WHITE SULPHUR SPRNGS 2 
State:MT
Lat:46.33N
Long:110.54W
Elev: 5040
ID:248930
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     11.0  14.6  20.7  27.8  35.5  42.7  47.2  46.0  37.9  29.9  19.6  11.9  28.7
Maximum     31.5  36.6  43.9  53.5  62.8  71.7  79.8  79.8  69.0  57.1  40.4  33.3  55.0
Mean        21.3  25.6  32.3  40.7  49.2  57.2  63.5  62.9  53.5  43.5  30.0  22.6  41.9
Precip.     0.47  0.38  0.84  1.18  2.29  2.21  1.52  1.20  1.23  0.99  0.44  0.47 13.22
HDD         1357  1103  1013   731   493   252   123   136   360   667  1050  1315  8600
CDD            0     0     0     0     0    18    77    72    13     0     0     0   180
City:WHITEWATER             
State:MT
Lat:48.46N
Long:107.37W
Elev: 2355
ID:248939
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.35  0.30  0.45  0.71  1.86  2.35  1.60  0.90  1.01  0.58  0.44  0.36 10.91
City:WIBAUX 2 E             
State:MT
Lat:46.59N
Long:104.09W
Elev: 2670
ID:248957
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      2.1   9.6  18.2  28.3  39.0  47.9  51.9  51.1  40.0  29.9  16.8   6.2  28.4
Maximum     24.4  32.0  42.6  56.0  67.7  77.1  84.5  84.1  71.7  57.9  38.7  27.7  55.4
Mean        13.3  20.8  30.4  42.2  53.4  62.5  68.2  67.6  55.9  43.9  27.8  17.0  41.9
Precip.     0.29  0.29  0.59  1.31  2.29  2.56  2.02  1.50  1.49  1.21  0.47  0.25 14.27
HDD         1604  1238  1073   685   372   153    56    83   306   655  1118  1490  8833
CDD            0     0     0     0    11    79   156   164    30     0     0     0   440
City:WILSALL 8 ENE          
State:MT
Lat:46.02N
Long:110.31W
Elev: 5835
ID:249023
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     12.6  15.6  20.5  26.8  34.4  40.8  44.9  44.0  36.5  29.3  20.1  14.0  28.3
Maximum     33.8  37.7  43.6  52.0  61.4  70.7  79.0  79.1  68.2  56.5  40.7  34.5  54.8
Mean        23.2  26.7  32.1  39.4  47.9  55.8  62.0  61.6  52.4  42.9  30.4  24.3  41.6
Precip.     0.93  0.75  1.51  2.10  3.46  3.27  2.00  1.74  1.83  1.40  1.07  0.90 20.96
HDD         1295  1074  1022   768   531   287   150   163   390   685  1038  1263  8666
CDD            0     0     0     0     0     9    55    56    10     0     0     0   130
City:WINIFRED               
State:MT
Lat:47.34N
Long:109.23W
Elev: 3243
ID:249033
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      5.5  12.0  20.3  30.2  39.5  47.5  51.2  50.1  39.9  28.9  17.7   8.7  29.3
Maximum     29.8  36.9  45.1  56.2  65.7  75.3  82.6  83.3  71.3  59.1  42.5  33.4  56.8
Mean        17.7  24.5  32.7  43.2  52.6  61.4  66.9  66.7  55.6  44.0  30.1  21.1  43.0
Precip.     0.73  0.42  0.88  1.33  2.76  2.79  1.89  1.66  1.34  0.80  0.59  0.72 15.91
HDD         1468  1136  1001   654   388   157    66    97   313   651  1047  1362  8340
CDD            0     0     0     0     3    49   125   150    31     0     0     0   358
City:WISDOM                 
State:MT
Lat:45.37N
Long:113.27W
Elev: 6060
ID:249067
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      0.4   2.5  11.9  20.4  28.0  35.0  36.6  33.9  26.3  19.2  10.8   1.4  18.9
Maximum     27.6  32.6  40.8  50.7  60.6  69.9  78.6  78.2  68.0  55.7  37.5  28.0  52.4
Mean        14.0  17.6  26.4  35.6  44.3  52.5  57.6  56.1  47.2  37.5  24.2  14.7  35.6
Precip.     0.62  0.51  0.67  0.98  1.70  1.78  1.28  1.12  0.99  0.74  0.81  0.70 11.90
HDD         1580  1330  1199   884   642   378   237   282   535   855  1226  1560 10708
CDD            0     0     0     0     0     0     8     4     0     0     0     0    12
City:WISE RIVER 3 WNW       
State:MT
Lat:45.48N
Long:113.01W
Elev: 5730
ID:249082
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.52  0.40  0.49  0.72  1.57  1.56  1.36  1.23  1.03  0.77  0.81  0.65 11.11
City:WOLF POINT             
State:MT
Lat:48.06N
Long:105.39W
Elev: 2090
ID:249103
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     -0.4   7.8  19.3  31.4  43.1  51.6  56.4  55.3  42.6  32.0  17.3   4.1  30.0
Maximum     23.1  31.9  44.7  60.6  72.2  81.2  88.0  87.4  74.9  61.1  41.4  27.7  57.9
Mean        11.4  19.9  32.0  46.0  57.7  66.4  72.2  71.4  58.8  46.6  29.4  15.9  44.0
Precip.     0.45  0.25  0.50  0.79  1.69  2.55  1.87  1.21  1.23  0.70  0.40  0.34 11.98
HDD         1664  1265  1023   573   262    94    30    49   235   572  1071  1523  8361
CDD            0     0     0     4    33   136   252   246    46     0     0     0   717
City:WYOLA 1 SW             
State:MT
Lat:45.07N
Long:107.24W
Elev: 3730
ID:249175
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum      7.7  13.0  21.2  29.4  37.5  45.4  49.4  47.8  38.3  29.6  18.3   9.8  29.0
Maximum     35.6  41.4  50.3  60.6  69.6  78.8  86.4  86.2  74.9  62.7  45.8  37.4  60.8
Mean        21.7  27.2  35.8  45.0  53.6  62.1  67.9  67.0  56.6  46.2  32.1  23.6  44.9
Precip.     0.75  0.66  1.11  2.06  2.69  2.36  1.51  0.83  1.58  1.64  0.96  0.74 16.89
HDD         1343  1059   907   600   358   140    53    79   275   584   989  1283  7670
CDD            0     0     0     0     3    53   142   140    23     0     0     0   361
City:YELLOWTAIL DAM         
State:MT
Lat:45.19N
Long:107.56W
Elev: 3305
ID:249240
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     17.7  21.9  28.0  36.2  44.5  52.4  57.2  56.1  47.2  38.5  27.7  20.5  37.3
Maximum     40.2  46.1  54.0  63.4  72.7  82.7  91.0  91.0  79.2  66.1  49.0  41.7  64.8
Mean        29.0  34.0  41.0  49.8  58.6  67.6  74.1  73.6  63.2  52.3  38.4  31.1  51.1
Precip.     0.86  0.72  1.39  2.10  3.09  2.21  1.45  0.98  1.77  1.89  0.95  0.87 18.28
HDD         1118   869   744   460   224    65    11    23   131   395   801  1051  5892
CDD            0     0     0     5    25   142   293   287    77     1     0     0   830
City:ZORTMAN                
State:MT
Lat:47.55N
Long:108.32W
Elev: 3873
ID:249900
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     0.68  0.54  1.10  1.73  3.28  3.62  2.34  1.70  1.52  0.67  0.60  0.73 18.51

 

 

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