Climate Normals (1981-2010)
other states
Source: National Climatic Data Center
| Montana Climate Normals (1981-2010) other states Source: National Climatic Data Center |
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
City: ALBERTON
State: MT
ID: USC00240075
Lat: 47.0036
Long: -114.4781
County: Mineral
Elev: 3060 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.8 40.4 50.6 59.7 67.9 75.7 85.6 85.7 74.7 59.2 41.8 32.1 59.1
Mean 26.7 30.4 38.7 45.7 53.2 60.6 67.7 66.9 57.4 45.4 33.4 24.9 46.0
Minimum 18.5 20.4 26.7 31.6 38.4 45.4 49.8 48.1 40.1 31.6 25.0 17.7 32.8
CDD 0 0 0 <0.5 5 29 125 110 14 <0.5 0 0 283
HDD 1189 969 817 580 373 162 42 51 242 608 948 1243 7223
Precip 1.14 1.31 1.49 1.49 2.20 2.29 1.10 1.16 1.27 1.42 1.86 1.56 18.29
City: ALBION 1 N
State: MT
ID: USC00240088
Lat: 45.2089
Long: -104.2647
County: Carter
Elev: 3312 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.1 36.3 45.5 58.0 67.6 77.7 87.7 86.9 75.0 60.6 44.9 33.7 59.0
Mean 20.9 24.0 33.2 44.2 54.1 64.0 72.2 70.4 58.6 45.6 32.2 21.0 45.1
Minimum 8.7 11.6 20.8 30.4 40.6 50.3 56.6 53.9 42.2 30.7 19.5 8.2 31.2
CDD 0 0 0 <0.5 9 77 243 204 43 1 0 0 577
HDD 1367 1149 987 624 347 107 22 36 235 601 984 1365 7825
Precip 0.26 0.33 0.70 1.53 2.76 2.68 2.13 1.74 1.10 0.99 0.45 0.27 14.94
Snow 2.8 4.5 6.2 2.6 1.5 0.0 0.0 0.0 0.1 2.0 3.1 4.1 26.9
City: ALDER 17 S
State: MT
ID: USC00240110
Lat: 45.0708
Long: -112.0575
County: Madison
Elev: 5850 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.9 36.5 44.5 52.6 61.5 69.4 79.5 78.8 68.2 55.8 41.4 32.4 54.6
Mean 24.5 26.4 33.8 40.6 48.8 56.0 63.8 62.8 53.7 43.2 31.3 22.8 42.4
Minimum 15.1 16.4 23.1 28.6 36.1 42.6 48.0 46.8 39.1 30.6 21.2 13.2 30.1
CDD 0 0 0 <0.5 1 9 54 41 4 <0.5 0 0 109
HDD 1256 1079 967 732 503 279 93 109 345 676 1011 1308 8357
Precip 0.39 0.35 0.73 1.29 2.33 2.61 1.42 1.45 1.19 1.05 0.54 0.46 13.81
Snow 7.6 6.8 9.3 9.2 3.4 0.1 0.0 0.0 0.8 3.4 7.5 7.8 55.9
City: ALDER RUBY DAM
State: MT
ID: USC00240115
Lat: 45.2500
Long: -112.1167
County: Madison
Elev: 5290 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.43 0.43 0.86 1.00 2.33 2.18 1.51 1.37 0.95 0.95 0.57 0.43 13.01
City: ANACONDA
State: MT
ID: USC00240199
Lat: 46.1314
Long: -112.9569
County: Deer Lodge
Elev: 5280 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.1 39.0 46.7 54.6 63.8 72.1 81.3 80.7 70.2 57.0 42.1 33.4 56.5
Mean 25.5 27.7 34.5 41.3 49.7 57.2 64.4 63.5 54.4 43.5 31.2 23.0 43.1
Minimum 14.9 16.3 22.3 28.0 35.6 42.4 47.6 46.3 38.5 30.0 20.3 12.7 29.6
CDD 0 0 0 <0.5 2 13 68 51 5 <0.5 0 0 139
HDD 1224 1046 946 711 476 246 85 97 325 667 1014 1300 8136
Precip 0.59 0.59 1.09 1.37 2.14 2.18 1.42 1.46 1.25 0.88 0.95 0.75 14.67
Snow 9.9 10.3 12.3 9.0 2.4 0.5 0.0 0.1 1.2 3.8 12.5 12.0 74.0
City: AUGUSTA
State: MT
ID: USC00240364
Lat: 47.4931
Long: -112.3964
County: Lewis and Clark
Elev: 4070 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 39.1 41.6 47.9 57.0 66.2 73.4 82.8 82.3 72.1 59.8 45.1 37.9 58.9
Mean 26.9 28.8 34.9 43.3 51.8 59.1 66.1 64.8 56.0 45.5 33.8 26.2 44.8
Minimum 14.8 16.1 21.8 29.6 37.4 44.8 49.4 47.2 39.8 31.3 22.5 14.4 30.8
CDD 0 0 0 <0.5 4 21 91 72 12 1 0 0 200
HDD 1180 1012 935 651 413 198 57 79 284 604 936 1204 7552
Precip 0.39 0.46 0.79 1.31 2.61 2.46 1.23 1.42 1.36 0.74 0.61 0.40 13.78
City: AUSTIN 1 W
State: MT
ID: USC00240375
Lat: 46.6456
Long: -112.2656
County: Lewis and Clark
Elev: 4851 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.0 33.2 42.1 51.4 60.8 69.2 79.0 78.4 67.1 52.6 37.1 28.8 52.6
Mean 20.8 23.1 30.9 38.9 47.9 55.6 63.4 62.6 52.6 40.9 28.0 20.0 40.5
Minimum 11.5 12.9 19.7 26.5 35.1 42.1 47.8 46.9 38.2 29.1 19.0 11.1 28.4
CDD 0 0 0 0 1 8 50 40 5 0 0 0 102
HDD 1372 1174 1057 781 529 288 100 113 375 749 1108 1396 9043
Precip 0.79 0.80 0.91 1.50 2.40 2.39 1.73 1.40 1.44 1.22 1.26 0.91 16.75
City: BABB 6 NE
State: MT
ID: USC00240392
Lat: 48.9389
Long: -113.3719
County: Glacier
Elev: 4300 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.8 37.7 43.4 52.6 62.4 69.1 77.9 77.5 67.5 56.1 41.5 33.8 54.7
Mean 23.1 24.2 30.5 39.0 47.5 54.2 60.6 59.6 51.1 42.0 29.7 21.7 40.3
Minimum 10.3 10.7 17.6 25.4 32.6 39.3 43.2 41.6 34.6 27.8 17.9 9.6 26.0
CDD 0 0 0 <0.5 1 2 22 17 2 <0.5 0 0 44
HDD 1300 1142 1069 780 543 326 160 186 420 715 1059 1342 9044
Precip 0.46 0.43 0.92 1.30 2.63 3.63 1.84 1.65 1.75 0.94 0.79 0.61 16.95
City: BAKER 1 E
State: MT
ID: USC00240412
Lat: 46.3647
Long: -104.2750
County: Fallon
Elev: 2933 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.5 32.4 43.4 56.1 66.0 75.9 85.1 84.5 72.5 57.0 41.6 30.4 56.2
Mean 17.5 21.3 31.6 42.8 53.3 63.0 70.3 69.4 57.4 43.7 30.0 18.7 43.3
Minimum 6.5 10.2 19.7 29.5 40.5 50.1 55.4 54.2 42.2 30.4 18.4 7.0 30.4
CDD 0 0 <0.5 1 12 75 201 185 43 <0.5 0 0 518
HDD 1472 1223 1037 667 377 135 39 51 272 661 1050 1434 8418
Precip 0.42 0.31 0.67 1.31 2.25 2.63 1.79 1.17 1.27 1.16 0.50 0.40 13.88
Snow 4.8 4.0 6.0 4.7 0.4 0.0 0.0 0.0 0.1 1.2 2.1 5.1 28.4
City: BAKER MUNI AP
State: MT
ID: USW00094055
Lat: 46.3583
Long: -104.2500
County: Fallon
Elev: 2971 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.0 32.0 42.9 55.3 66.1 74.8 85.7 85.0 71.7 57.2 40.7 29.1 55.8
Mean 17.5 21.8 31.6 42.7 52.9 62.3 70.9 69.6 57.3 43.9 30.0 18.4 43.3
Minimum 7.0 11.6 20.4 30.1 39.6 49.7 56.1 54.1 42.8 30.7 19.2 7.7 30.8
CDD 0 0 0 <0.5 4 51 204 180 31 <0.5 0 0 470
HDD 1473 1210 1034 669 381 133 21 39 263 653 1052 1444 8371
Precip 0.33 0.29 0.72 1.39 2.49 2.72 1.95 1.37 1.29 1.22 0.49 0.36 14.62
City: BALLANTINE
State: MT
ID: USC00240432
Lat: 45.9497
Long: -108.1439
County: Yellowstone
Elev: 3000 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.6 40.0 49.5 59.5 68.9 78.2 87.2 86.8 74.0 60.8 45.6 34.1 60.0
Mean 21.8 27.5 36.4 46.0 55.7 64.7 71.8 70.5 58.7 46.3 33.1 22.2 46.3
Minimum 10.0 15.1 23.2 32.5 42.5 51.2 56.4 54.2 43.4 31.8 20.6 10.4 32.7
CDD 0 0 0 1 18 88 226 194 33 1 0 0 561
HDD 1339 1049 888 571 306 97 16 24 222 580 957 1325 7374
Precip 0.45 0.44 0.95 1.51 2.29 2.48 1.21 0.89 1.36 1.11 0.86 0.45 14.00
City: BARBER
State: MT
ID: USC00240466
Lat: 46.3108
Long: -109.3719
County: Golden Valley
Elev: 3730 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 39.1 42.0 50.0 59.0 68.0 75.4 83.8 82.0 72.2 60.6 47.5 37.2 59.8
Mean 26.1 28.4 35.9 44.3 53.3 61.2 68.1 66.0 56.9 45.7 33.6 24.6 45.4
Minimum 13.0 14.9 21.8 29.6 38.6 47.0 52.3 49.9 41.6 30.7 19.6 12.0 31.0
CDD 0 0 <0.5 <0.5 3 34 125 86 11 <0.5 0 0 259
HDD 1207 1023 902 621 366 149 31 57 254 600 943 1252 7405
City: BAYLOR
State: MT
ID: USC00240554
Lat: 48.6719
Long: -106.4811
County: Valley
Elev: 2958 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.6 28.2 39.9 56.4 66.9 74.6 82.4 81.8 70.3 55.3 39.0 26.0 53.8
Mean 13.0 17.9 28.9 42.9 53.1 61.6 67.9 66.8 55.8 42.4 28.0 16.1 41.3
Minimum 2.3 7.6 17.8 29.3 39.2 48.5 53.4 51.7 41.2 29.4 16.9 6.1 28.7
CDD 0 0 0 <0.5 5 28 131 119 21 <0.5 0 0 305
HDD 1614 1319 1121 665 375 132 42 65 298 703 1112 1517 8961
Precip 0.36 0.19 0.45 0.78 2.15 2.59 1.82 1.14 1.28 0.59 0.40 0.24 11.99
City: BELLTOWER
State: MT
ID: USC00240636
Lat: 45.6858
Long: -104.3769
County: Carter
Elev: 3174 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.54 0.34 0.67 1.40 2.33 2.59 1.89 1.09 1.25 0.98 0.46 0.51 14.05
Snow 5.4 3.1 6.4 2.8 0.8 0.0 0.0 0.0 0.0 1.2 3.6 3.5 26.8
City: BIDDLE 8 SW
State: MT
ID: USC00240743
Lat: 45.0403
Long: -105.4855
County: Powder River
Elev: 3597 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.6 40.0 49.0 59.2 68.3 78.2 88.4 87.8 76.0 61.4 47.2 36.9 60.9
Mean 25.6 28.3 36.5 45.7 54.9 64.3 72.8 71.8 60.6 47.8 34.9 25.1 47.4
Minimum 13.6 16.6 24.0 32.2 41.5 50.4 57.2 55.8 45.2 34.1 22.6 13.2 34.0
CDD 0 0 0 1 11 80 256 231 54 2 0 0 635
HDD 1221 1027 884 580 324 101 15 20 186 537 903 1238 7036
Precip 0.36 0.36 0.94 1.70 2.54 2.47 1.86 0.99 1.35 1.23 0.49 0.40 14.69
Snow 5.9 5.4 7.2 6.4 1.7 0.0 0.0 0.0 0.7 3.4 4.4 5.0 40.1
City: BIDDLE
State: MT
ID: USC00240739
Lat: 45.0983
Long: -105.3381
County: Powder River
Elev: 3329 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.36 0.26 0.74 1.48 2.49 2.47 2.01 1.10 1.19 1.22 0.31 0.32 13.95
City: BIG SANDY
State: MT
ID: USC00240770
Lat: 48.1350
Long: -110.0608
County: Chouteau
Elev: 2770 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.9 36.1 46.8 59.3 68.2 76.4 85.3 84.8 72.7 59.3 43.4 32.8 58.2
Mean 21.2 25.2 35.0 46.0 55.0 62.8 70.1 69.0 58.1 46.1 32.4 21.7 45.3
Minimum 10.4 14.2 23.2 32.8 41.9 49.2 54.9 53.3 43.6 33.0 21.4 10.7 32.5
CDD 0 0 <0.5 1 16 61 188 167 30 1 <0.5 0 465
HDD 1359 1116 930 570 325 127 30 42 236 585 978 1340 7638
Precip 0.48 0.29 0.62 1.12 2.37 2.70 1.52 1.14 1.35 0.81 0.51 0.50 13.41
City: BIG SKY 2WNW
State: MT
ID: USC00240775
Lat: 45.2769
Long: -111.3242
County: Gallatin
Elev: 6590 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.8 35.2 43.0 50.0 59.2 67.9 77.9 77.3 67.8 54.3 38.0 28.4 52.6
Mean 19.2 21.8 29.3 36.0 44.4 51.8 59.0 58.0 50.0 39.1 26.6 17.4 37.8
Minimum 7.6 8.4 15.7 22.0 29.5 35.7 40.1 38.6 32.1 23.9 15.1 6.5 23.0
CDD 0 0 0 0 0 <0.5 6 4 <0.5 0 0 0 11
HDD 1420 1209 1105 870 640 396 193 222 452 803 1153 1474 9938
Precip 1.45 0.95 1.29 1.64 2.74 2.74 1.47 1.56 1.59 1.78 1.40 1.58 20.19
City: BIG TIMBER
State: MT
ID: USC00240780
Lat: 45.8328
Long: -109.9503
County: Sweet Grass
Elev: 4100 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.6 41.0 48.8 57.3 67.5 76.4 86.1 85.3 73.2 59.5 45.3 36.1 59.6
Mean 27.7 30.1 37.0 44.9 54.1 62.6 70.1 68.7 58.2 46.6 35.4 26.8 46.9
Minimum 17.8 19.2 25.1 32.5 40.8 48.8 54.2 52.1 43.1 33.6 25.6 17.6 34.3
CDD 0 0 <0.5 1 7 51 180 146 23 1 0 0 408
HDD 1156 977 870 604 343 123 21 32 228 573 887 1182 6995
Precip 0.65 0.52 0.93 2.11 2.75 2.81 1.53 1.04 1.19 1.32 0.70 0.68 16.23
City: BIGFORK 13 S
State: MT
ID: USC00240755
Lat: 47.8750
Long: -114.0331
County: Lake
Elev: 2910 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.6 37.4 45.4 54.3 63.5 70.4 79.4 78.8 68.2 55.4 42.0 33.7 55.4
Mean 29.7 31.1 37.6 44.8 52.9 59.7 67.0 66.4 57.2 46.8 36.4 29.1 46.6
Minimum 24.7 24.8 29.8 35.2 42.3 49.0 54.7 54.1 46.2 38.1 30.7 24.6 37.9
CDD 0 0 0 <0.5 3 19 109 94 9 <0.5 0 0 234
HDD 1096 949 849 607 378 178 46 49 243 566 859 1111 6932
Precip 1.53 1.08 1.37 1.81 2.99 3.18 1.51 1.37 1.97 1.89 1.80 1.53 22.03
City: BILLINGS INTL AP
State: MT
ID: USW00024033
Lat: 45.8069
Long: -108.5422
County: Yellowstone
Elev: 3581 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.4 40.2 48.6 57.6 67.5 77.2 86.8 85.7 73.1 59.4 45.3 35.2 59.5
Mean 27.1 30.4 37.7 46.2 55.6 64.7 72.8 71.5 60.3 48.2 35.8 26.5 48.2
Minimum 17.8 20.6 26.9 34.7 43.6 52.1 58.8 57.3 47.5 37.1 26.3 17.8 36.8
CDD 0 0 <0.5 1 16 85 256 224 51 3 <0.5 0 637
HDD 1175 969 845 567 309 96 15 22 192 523 876 1193 6781
Precip 0.48 0.48 1.06 1.66 2.18 2.12 1.32 0.75 1.30 1.18 0.63 0.50 13.66
Snow 8.4 6.2 10.2 8.3 2.0 0.0 0.0 0.0 1.1 4.1 6.5 8.2 55.0
City: BILLINGS WFO
State: MT
ID: USC00240801
Lat: 45.7508
Long: -108.5706
County: Yellowstone
Elev: 3185 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.3 41.5 51.2 59.9 69.4 78.8 88.5 86.1 74.3 60.9 46.7 36.5 61.0
Mean 25.3 29.9 38.0 46.8 55.9 64.7 72.3 70.2 59.6 47.8 34.9 25.7 47.7
Minimum 14.2 18.2 24.9 33.7 42.3 50.6 56.1 54.3 44.9 34.7 23.1 14.9 34.4
CDD 0 0 0 <0.5 11 75 235 182 33 1 0 0 537
HDD 1232 984 835 546 295 84 9 21 195 534 903 1218 6857
Precip 0.60 0.60 1.06 1.75 2.33 1.97 1.40 0.85 1.51 1.52 0.65 0.53 14.77
Snow 8.7 6.9 9.2 3.8 0.7 0.0 0.0 0.0 0.5 3.4 5.1 7.3 45.6
City: BILLINGS WTP
State: MT
ID: USC00240802
Lat: 45.7717
Long: -108.4811
County: Yellowstone
Elev: 3097 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 40.6 45.2 54.2 63.0 72.1 80.6 89.4 88.7 77.9 64.5 49.4 39.2 63.8
Mean 28.1 32.0 40.0 48.5 57.4 65.8 73.1 71.7 61.4 49.7 36.9 27.3 49.4
Minimum 15.6 18.8 25.7 33.9 42.7 51.0 56.8 54.6 45.0 34.8 24.4 15.5 35.0
CDD 0 0 0 2 19 97 259 222 51 2 0 0 651
HDD 1144 924 777 498 255 73 8 16 157 478 843 1167 6339
Precip 0.47 0.47 0.97 1.65 2.23 2.28 1.43 0.79 1.37 1.38 0.61 0.53 14.18
City: BIRNEY
State: MT
ID: USC00240819
Lat: 45.3247
Long: -106.5125
County: Rosebud
Elev: 3160 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.5 42.9 53.4 63.7 73.2 81.9 90.7 90.2 78.4 64.3 47.2 36.6 63.4
Mean 23.6 28.8 38.5 47.6 56.9 66.0 72.9 71.8 60.5 47.9 34.1 23.6 47.8
Minimum 9.8 14.7 23.7 31.5 40.6 50.1 55.1 53.4 42.5 31.5 21.0 10.5 32.1
CDD 0 0 0 1 17 105 253 227 45 1 0 0 649
HDD 1282 1013 820 523 268 75 8 17 181 531 927 1285 6930
Precip 0.40 0.40 0.94 1.23 2.45 2.48 1.58 0.85 1.06 1.12 0.56 0.51 13.58
City: BLACKLEAF
State: MT
ID: USC00240877
Lat: 48.0128
Long: -112.4369
County: Teton
Elev: 4235 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.4 39.1 45.2 53.9 62.6 69.2 79.2 78.8 68.0 56.6 43.3 35.7 55.9
Mean 24.2 25.6 32.1 40.7 48.7 55.6 63.3 62.3 52.6 42.4 30.8 22.9 41.9
Minimum 11.0 12.2 19.1 27.5 34.8 41.9 47.5 45.8 37.1 28.2 18.4 10.0 27.9
CDD 0 0 0 <0.5 1 8 60 49 5 <0.5 0 0 124
HDD 1265 1102 1018 729 506 292 111 133 379 701 1024 1306 8567
City: BLOOMFIELD 5 NNE
State: MT
ID: USC00240923
Lat: 47.4694
Long: -104.8950
County: Dawson
Elev: 2673 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 27.4 32.3 42.8 56.6 66.6 75.6 84.1 84.0 72.2 57.1 41.0 29.4 55.9
Mean 16.2 20.8 31.1 42.1 52.8 61.7 68.7 67.7 56.4 42.9 29.4 18.5 42.5
Minimum 5.1 9.3 19.4 27.5 39.0 47.8 53.2 51.5 40.6 28.7 17.8 7.5 29.1
CDD 0 0 0 <0.5 7 47 148 140 28 <0.5 0 0 371
HDD 1511 1237 1051 689 385 147 35 55 287 685 1068 1443 8592
Precip 0.22 0.25 0.50 1.31 2.25 2.53 2.13 1.33 1.18 0.87 0.42 0.28 13.27
City: BOULDER
State: MT
ID: USC00241008
Lat: 46.2314
Long: -112.1136
County: Jefferson
Elev: 4904 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.3 38.7 46.8 55.1 63.9 72.6 82.2 81.8 71.1 58.2 42.1 33.2 56.8
Mean 23.7 26.6 34.1 41.2 49.5 57.6 65.2 64.0 54.1 42.9 30.4 21.7 42.7
Minimum 12.2 14.5 21.4 27.3 35.2 42.7 48.2 46.2 37.2 27.7 18.7 10.3 28.5
CDD 0 0 0 0 1 16 78 56 6 <0.5 0 0 157
HDD 1279 1075 958 714 480 236 72 87 332 684 1038 1341 8295
Precip 0.31 0.26 0.47 0.75 1.99 2.16 1.65 1.33 0.99 0.64 0.49 0.33 11.37
City: BOZEMAN 12 NE
State: MT
ID: USC00241050
Lat: 45.8167
Long: -110.8833
County: Gallatin
Elev: 5950 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.8 36.5 42.6 49.9 58.8 67.1 76.0 76.2 65.8 54.1 40.0 32.9 53.0
Mean 22.0 24.1 29.7 36.6 44.4 51.7 57.9 56.9 49.0 39.8 28.1 21.0 38.5
Minimum 9.2 11.8 16.7 23.4 30.0 36.2 39.9 37.5 32.3 25.6 16.2 9.1 24.0
CDD 0 0 0 0 0 <0.5 3 2 <0.5 0 0 0 5
HDD 1333 1144 1096 851 639 401 222 254 479 780 1107 1364 9668
Precip 2.12 1.69 2.45 3.59 4.09 4.54 2.09 2.18 2.34 2.82 2.58 1.77 32.26
City: BOZEMAN 6 W EXP FARM
State: MT
ID: USC00241047
Lat: 45.6750
Long: -111.1550
County: Gallatin
Elev: 4775 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.3 38.5 47.4 56.5 65.4 72.9 82.8 82.4 71.9 58.5 42.9 33.4 57.4
Mean 24.7 27.5 35.5 43.3 51.7 58.5 66.2 65.2 56.1 45.0 32.1 22.8 44.1
Minimum 14.0 16.5 23.7 30.1 37.9 44.0 49.6 47.9 40.3 31.6 21.2 12.2 30.8
CDD 0 0 0 <0.5 2 17 93 74 12 <0.5 0 0 199
HDD 1251 1050 913 651 416 213 56 70 279 619 988 1308 7815
Precip 0.55 0.54 1.03 1.78 2.81 2.78 1.41 1.21 1.26 1.38 0.90 0.54 16.19
Snow 9.4 5.9 7.5 4.3 0.9 0.0 0.0 0.1 0.3 2.9 8.1 10.9 50.3
City: BOZEMAN GALLATIN FLD
State: MT
ID: USW00024132
Lat: 45.7881
Long: -111.1608
County: Gallatin
Elev: 4427 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.9 39.5 49.6 59.2 68.3 77.2 87.8 87.2 75.1 61.2 44.9 33.3 60.1
Mean 23.5 27.2 36.5 45.1 53.6 61.6 69.4 68.2 57.8 45.9 32.2 21.3 45.3
Minimum 11.1 14.9 23.4 31.0 39.0 45.9 51.1 49.2 40.5 30.6 19.5 9.3 30.5
CDD 0 0 0 <0.5 4 38 166 138 22 <0.5 0 0 368
HDD 1287 1058 884 597 356 141 28 39 238 592 984 1354 7559
Precip 0.51 0.45 0.94 1.60 2.46 2.46 1.12 1.08 1.10 1.10 0.77 0.51 14.10
Snow 4.0 4.9 7.7 7.5 2.5 0.0 0.0 0.0 0.3 2.1 5.2 6.0 40.2
City: BOZEMAN MONTANA ST U
State: MT
ID: USC00241044
Lat: 45.6622
Long: -111.0453
County: Gallatin
Elev: 4913 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.0 39.1 47.8 56.8 65.4 73.8 83.4 83.0 72.3 59.4 43.3 34.1 58.0
Mean 25.1 27.7 35.5 43.4 51.7 59.3 67.1 66.1 56.6 45.6 32.5 23.4 44.6
Minimum 14.1 16.3 23.2 30.0 38.0 44.8 50.8 49.2 41.0 31.8 21.6 12.7 31.2
CDD 0 0 0 <0.5 3 27 114 93 16 1 0 0 254
HDD 1238 1044 915 648 416 198 49 59 266 602 976 1289 7701
Precip 0.83 0.78 1.38 2.30 3.18 3.11 1.46 1.43 1.40 1.72 1.19 0.93 19.71
Snow 12.9 11.5 14.9 13.9 4.4 0.7 0.0 0.1 0.9 5.8 11.3 14.6 91.0
City: BRADY 27 ENE THE KNEES
State: MT
ID: USC00241081
Lat: 48.0750
Long: -111.2597
County: Chouteau
Elev: 3325 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.34 0.29 0.63 1.00 1.94 2.36 1.39 1.28 1.25 0.66 0.37 0.43 11.94
Snow 7.1 6.3 7.9 5.8 1.6 0.0 0.0 0.0 0.1 1.6 5.4 5.9 41.7
City: BRANDENBERG
State: MT
ID: USC00241084
Lat: 45.8161
Long: -106.2314
County: Rosebud
Elev: 2770 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.6 40.2 50.2 61.4 70.7 80.0 90.2 89.5 76.6 61.6 46.1 34.9 61.5
Mean 23.4 27.5 36.8 46.5 55.8 64.7 72.6 71.1 59.6 47.0 33.7 22.9 46.9
Minimum 11.1 14.7 23.3 31.7 41.0 49.4 55.0 52.8 42.6 32.4 21.2 10.9 32.3
CDD 0 0 0 1 16 85 248 214 41 1 0 0 606
HDD 1291 1051 876 554 299 94 13 24 203 559 940 1305 7210
Precip 0.50 0.47 0.96 1.53 2.65 2.39 1.37 0.84 1.22 1.29 0.61 0.55 14.38
Snow 7.2 6.1 7.6 4.9 1.0 0.0 0.0 0.0 0.5 1.7 4.8 7.3 41.1
City: BREDETTE
State: MT
ID: USC00241088
Lat: 48.5475
Long: -105.2706
County: Roosevelt
Elev: 2638 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 22.6 27.5 39.7 56.4 67.2 76.0 83.4 83.4 70.8 55.4 37.2 24.3 53.8
Mean 13.5 18.2 29.6 43.7 54.2 63.0 69.3 68.8 57.5 43.8 28.1 15.5 42.2
Minimum 4.5 9.0 19.6 31.0 41.2 50.0 55.2 54.2 44.1 32.3 18.9 6.7 30.7
CDD 0 0 0 1 14 66 163 165 36 1 0 0 446
HDD 1595 1309 1096 640 348 126 30 48 263 657 1108 1534 8754
Precip 0.37 0.20 0.47 0.86 2.00 2.78 2.42 1.32 0.99 0.82 0.43 0.34 13.00
Snow 6.0 3.4 4.2 2.3 1.0 0.0 0.0 0.0 0.2 2.0 4.7 5.7 29.5
City: BRIDGER 2 N
State: MT
ID: USC00241102
Lat: 45.3261
Long: -108.9092
County: Carbon
Elev: 3583 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.5 40.3 50.3 58.5 68.5 77.5 86.9 86.2 74.6 60.5 45.3 34.9 60.0
Mean 24.0 27.8 36.6 44.4 54.1 62.5 70.1 68.6 58.0 46.1 33.5 23.9 45.9
Minimum 12.5 15.3 23.0 30.3 39.7 47.5 53.2 50.9 41.4 31.8 21.7 12.8 31.8
CDD 0 0 0 <0.5 9 55 179 145 27 1 0 0 417
HDD 1271 1041 879 618 347 130 23 35 237 585 945 1275 7388
Precip 0.46 0.54 0.70 1.59 2.26 1.83 0.95 0.63 1.09 1.19 0.59 0.48 12.31
Snow 4.6 4.4 6.1 5.8 1.6 0.0 0.0 0.0 0.8 1.8 3.7 5.9 34.7
City: BROADUS
State: MT
ID: USC00241127
Lat: 45.4442
Long: -105.4072
County: Powder River
Elev: 3032 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.9 40.4 49.7 60.7 69.9 79.2 88.8 87.9 75.9 61.9 46.5 35.6 61.1
Mean 23.5 27.5 36.3 46.2 55.9 65.1 73.1 71.6 59.8 47.2 33.5 23.1 47.0
Minimum 11.0 14.6 22.8 31.7 41.8 50.9 57.5 55.4 43.6 32.6 20.5 10.6 32.9
CDD 0 0 <0.5 1 17 90 265 228 44 2 0 0 647
HDD 1288 1050 891 565 301 88 13 22 201 552 945 1299 7215
Precip 0.45 0.40 0.88 1.64 2.36 2.25 1.62 1.13 1.08 1.09 0.53 0.54 13.97
Snow 5.2 6.0 8.8 4.9 1.8 0.0 0.0 0.0 0.6 1.8 5.4 7.9 42.4
City: BROCKTON 20S
State: MT
ID: USC00241164
Lat: 47.8711
Long: -104.9006
County: Richland
Elev: 2370 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.40 0.31 0.65 1.06 2.26 2.82 2.43 1.54 1.27 1.01 0.54 0.41 14.70
City: BROCKWAY 3 WSW
State: MT
ID: USC00241169
Lat: 47.2875
Long: -105.8300
County: McCone
Elev: 2630 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.1 34.4 45.7 58.7 68.1 77.7 86.4 86.1 73.3 59.2 43.3 30.8 57.9
Mean 18.6 22.9 33.5 44.7 54.3 63.7 70.9 70.1 58.1 45.5 31.2 19.4 44.5
Minimum 7.1 11.5 21.3 30.7 40.5 49.8 55.3 54.2 43.0 31.8 19.1 8.0 31.1
CDD 0 0 <0.5 1 13 77 205 196 40 1 0 0 532
HDD 1438 1177 977 610 345 114 24 37 245 606 1014 1413 7999
Precip 0.21 0.15 0.38 1.05 2.05 2.30 1.92 1.06 1.10 0.82 0.18 0.22 11.44
City: BRUSETT 3 N
State: MT
ID: USC00241231
Lat: 47.4647
Long: -107.3114
County: Garfield
Elev: 2974 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.50 0.29 0.66 1.55 2.67 2.54 1.85 1.25 1.34 1.16 0.57 0.52 14.90
Snow 7.8 4.9 5.0 3.5 1.3 0.0 0.0 0.0 0.1 1.7 2.9 7.7 34.9
City: BULL LAKE
State: MT
ID: USC00241262
Lat: 48.2561
Long: -115.8494
County: Lincoln
Elev: 2325 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.1 37.5 47.6 56.3 66.4 72.4 81.6 82.2 70.3 54.7 40.8 31.9 56.2
Mean 25.6 29.8 36.9 44.1 52.9 59.5 65.5 64.9 55.6 44.3 35.0 25.7 45.0
Minimum 19.1 22.0 26.1 31.9 39.4 46.5 49.3 47.6 40.9 33.9 29.2 19.5 33.8
CDD 0 0 0 0 <0.5 8 64 62 7 0 0 0 140
HDD 1222 987 873 627 376 174 50 65 289 641 900 1218 7421
City: BUSBY
State: MT
ID: USC00241297
Lat: 45.5397
Long: -106.9597
County: Big Horn
Elev: 3430 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.3 38.3 49.1 59.7 68.8 78.1 88.3 87.9 75.6 60.9 45.7 34.2 60.2
Mean 21.2 25.2 35.4 44.6 53.6 62.6 70.2 69.1 58.1 45.4 32.1 21.1 45.0
Minimum 8.1 12.0 21.6 29.6 38.4 47.0 52.2 50.4 40.5 29.9 18.5 8.0 29.8
CDD 0 0 0 <0.5 6 54 187 161 28 <0.5 0 0 435
HDD 1358 1116 919 611 359 128 24 32 236 608 987 1361 7738
Precip 0.60 0.51 0.94 1.40 2.27 2.44 1.26 0.81 1.47 1.36 0.81 0.59 14.46
Snow 8.8 7.6 9.0 5.3 1.9 0.0 0.0 0.0 0.8 3.7 7.0 9.4 53.5
City: BUTTE BERT MOONEY AP
State: MT
ID: USW00024135
Lat: 45.9647
Long: -112.5006
County: Silver Bow
Elev: 5506 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.8 35.0 43.5 51.7 61.1 70.2 80.7 79.6 68.3 55.0 39.8 29.5 54.0
Mean 19.6 22.2 31.4 39.0 47.6 55.7 63.2 61.7 51.9 40.8 27.7 17.4 39.9
Minimum 7.4 9.4 19.3 26.3 34.0 41.1 45.7 43.9 35.6 26.6 15.6 5.4 25.9
CDD 0 0 0 0 <0.5 7 44 28 2 0 0 0 80
HDD 1407 1198 1042 780 541 287 100 128 393 750 1119 1474 9220
Precip 0.47 0.43 0.76 1.17 2.08 2.26 1.35 1.36 1.00 0.78 0.60 0.51 12.77
Snow 8.1 7.6 10.9 7.4 3.8 0.2 0.0 0.1 1.4 4.3 8.7 9.7 62.2
City: BUTTE SOUTH
State: MT
ID: USC00241320
Lat: 45.9547
Long: -112.5028
County: Silver Bow
Elev: 5540 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.48 0.47 0.63 1.36 1.96 2.29 1.30 1.18 1.12 0.91 0.72 0.63 13.05
City: CANYON FERRY DAM
State: MT
ID: USC00241470
Lat: 46.6500
Long: -111.7333
County: Lewis and Clark
Elev: 3672 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.5 36.8 46.8 56.5 65.1 73.2 83.1 82.8 71.1 57.8 42.1 33.2 56.8
Mean 24.5 27.5 36.2 44.9 52.7 60.1 67.7 67.5 57.8 46.7 34.5 25.3 45.5
Minimum 16.5 18.3 25.6 33.2 40.2 47.0 52.3 52.2 44.5 35.5 26.9 17.5 34.2
CDD 0 0 0 <0.5 2 28 124 121 16 <0.5 0 0 291
HDD 1255 1048 893 605 385 175 40 43 232 569 915 1229 7390
Precip 0.30 0.27 0.60 0.99 1.92 2.07 1.47 1.20 1.03 0.85 0.47 0.37 11.54
City: CARDWELL
State: MT
ID: USC00241500
Lat: 45.8608
Long: -111.9519
County: Jefferson
Elev: 4270 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 39.5 43.0 51.3 59.9 68.6 77.3 88.3 84.5 74.2 62.9 46.7 37.1 61.2
Mean 27.2 29.3 37.5 44.6 52.6 60.6 68.8 65.2 55.6 46.0 34.4 24.9 45.6
Minimum 14.8 15.7 23.7 29.3 36.7 44.0 49.2 45.9 37.0 29.0 22.1 12.8 30.1
CDD 0 0 <0.5 <0.5 3 33 138 67 6 <0.5 0 0 247
HDD 1173 998 853 612 386 164 23 61 288 591 918 1241 7306
City: CARLYLE 13 NW
State: MT
ID: USC00241518
Lat: 46.7447
Long: -104.3089
County: Wibaux
Elev: 3140 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 27.4 31.1 41.3 54.2 63.9 72.9 82.0 82.1 70.2 55.8 40.3 28.6 54.3
Mean 18.9 22.5 31.6 42.7 52.6 61.7 69.3 68.8 57.8 44.9 31.4 20.3 43.7
Minimum 10.5 13.9 21.8 31.3 41.2 50.5 56.6 55.5 45.5 34.0 22.5 12.0 33.0
CDD 0 0 0 <0.5 7 50 168 164 38 1 0 0 428
HDD 1427 1190 1037 668 393 149 34 47 253 624 1008 1385 8215
Precip 0.50 0.44 0.81 1.58 2.35 2.63 2.01 1.45 1.42 1.38 0.68 0.57 15.82
Snow 8.2 7.1 8.1 5.4 2.4 0.0 0.0 0.0 0.4 2.8 6.6 6.9 47.9
City: CARTER 14 W
State: MT
ID: USC00241525
Lat: 47.7919
Long: -111.2192
County: Chouteau
Elev: 3450 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.8 39.9 47.4 57.9 67.2 75.4 85.6 84.6 72.5 59.9 45.4 35.8 59.1
Mean 25.6 27.8 34.8 44.1 52.9 60.7 68.5 67.6 57.6 46.6 34.2 25.0 45.5
Minimum 14.4 15.7 22.2 30.3 38.6 46.0 51.3 50.6 42.6 33.4 23.0 14.3 32.0
CDD 0 0 0 1 8 37 147 138 30 2 <0.5 0 362
HDD 1221 1041 936 628 383 166 40 58 253 571 924 1238 7460
Precip 0.41 0.38 0.73 1.26 2.35 2.23 1.39 1.50 1.32 0.81 0.48 0.41 13.27
Snow 6.6 6.5 8.1 5.3 1.8 0.2 0.0 0.0 0.6 2.7 6.2 6.9 44.9
City: CASCADE 20 SSE
State: MT
ID: USC00241557
Lat: 46.9956
Long: -111.5772
County: Cascade
Elev: 4600 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.9 39.9 46.2 54.6 63.6 71.4 81.1 80.8 70.1 57.8 43.6 36.7 57.1
Mean 26.2 27.5 33.6 41.3 49.2 56.1 62.7 62.0 53.1 43.6 32.7 25.3 42.8
Minimum 14.4 15.1 21.0 27.9 34.8 40.8 44.4 43.1 36.1 29.4 21.8 13.9 28.6
CDD 0 0 0 <0.5 1 9 44 35 4 <0.5 0 0 93
HDD 1204 1050 973 713 490 276 114 130 361 664 969 1231 8174
Precip 0.43 0.43 0.75 1.38 2.60 2.75 1.56 1.40 1.51 0.93 0.62 0.50 14.86
Snow 8.2 8.1 8.9 9.9 3.3 0.0 0.0 0.0 0.5 5.2 7.5 9.3 60.9
City: CASCADE 5 S
State: MT
ID: USC00241552
Lat: 47.2194
Long: -111.7100
County: Cascade
Elev: 3360 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.8 41.3 48.9 58.2 67.0 74.8 84.7 83.8 72.8 60.4 45.8 37.5 59.6
Mean 28.3 30.1 36.7 45.2 53.5 60.9 67.8 66.5 57.3 47.5 36.0 27.7 46.5
Minimum 17.8 18.8 24.4 32.3 40.0 47.0 50.9 49.2 41.8 34.6 26.2 17.9 33.5
CDD 0 0 <0.5 1 6 32 124 106 21 3 <0.5 0 293
HDD 1138 979 879 593 362 155 38 60 252 545 870 1156 7027
Precip 0.51 0.51 1.05 1.89 2.86 2.60 1.40 1.57 1.79 1.09 0.68 0.58 16.53
Snow 10.0 9.6 12.5 10.3 1.4 0.0 0.0 0.2 0.8 4.0 9.5 10.2 68.5
City: CHESTER
State: MT
ID: USC00241692
Lat: 48.5153
Long: -110.9711
County: Liberty
Elev: 3132 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.5 34.4 44.8 56.8 66.9 74.9 82.9 82.4 70.8 57.9 41.0 30.8 56.2
Mean 16.5 20.8 31.5 42.6 52.8 60.9 67.3 66.3 55.4 43.0 27.9 17.6 42.0
Minimum 3.5 7.2 18.1 28.4 38.7 46.9 51.6 50.2 40.0 28.0 14.9 4.4 27.8
CDD 0 0 0 1 8 37 120 108 13 <0.5 0 0 285
HDD 1503 1237 1040 673 386 160 50 68 300 684 1111 1469 8682
Precip 0.37 0.32 0.54 0.82 1.73 2.30 1.49 1.11 0.97 0.55 0.38 0.48 11.06
City: CHINOOK 35SE
State: MT
ID: USC00241730
Lat: 48.1731
Long: -109.0044
County: Blaine
Elev: 3360 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.7 35.7 45.3 57.2 64.1 71.6 79.8 80.0 69.3 58.3 43.7 34.9 56.2
Mean 23.1 24.5 33.1 43.9 51.5 59.5 66.5 65.6 55.5 44.7 32.1 23.4 43.7
Minimum 12.5 13.2 20.9 30.6 38.9 47.3 53.1 51.1 41.7 31.0 20.4 11.8 31.1
CDD 0 0 0 <0.5 4 20 108 93 17 <0.5 0 0 241
HDD 1299 1135 989 633 422 186 63 76 302 631 989 1291 8016
Precip 0.26 0.29 0.58 1.05 2.19 2.51 1.75 1.22 1.25 0.81 0.42 0.41 12.74
City: CHINOOK
State: MT
ID: USC00241722
Lat: 48.5883
Long: -109.2256
County: Blaine
Elev: 2420 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.9 33.6 45.2 59.2 68.4 77.0 84.8 84.2 72.0 58.8 41.7 30.2 57.1
Mean 16.3 20.9 32.0 44.9 54.8 63.5 69.4 68.0 56.0 43.5 28.9 18.2 43.1
Minimum 3.8 8.2 18.8 30.7 41.2 50.0 53.9 51.8 40.1 28.3 16.0 6.1 29.2
CDD 0 0 0 1 12 61 159 143 15 <0.5 0 0 391
HDD 1508 1235 1023 602 328 106 25 50 283 665 1084 1452 8362
Precip 0.49 0.40 0.61 0.91 2.25 2.35 1.74 1.22 1.41 0.71 0.55 0.48 13.12
Snow 6.4 6.2 3.9 1.2 0.9 0.0 0.0 0.0 0.0 1.1 5.5 5.8 31.0
City: CHOTEAU
State: MT
ID: USC00241737
Lat: 47.8206
Long: -112.1919
County: Teton
Elev: 3845 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.5 40.0 47.0 56.3 65.5 72.9 81.7 80.9 70.7 58.8 44.1 36.4 57.7
Mean 25.3 27.3 33.9 42.5 51.1 58.4 65.0 64.0 54.8 44.9 32.4 24.8 43.8
Minimum 13.1 14.6 20.8 28.7 36.7 43.9 48.3 47.0 39.0 30.9 20.7 13.2 29.8
CDD 0 0 0 <0.5 4 21 72 64 13 1 <0.5 0 175
HDD 1231 1056 964 675 435 219 73 96 317 626 978 1246 7915
Precip 0.21 0.25 0.45 0.90 1.82 2.38 1.17 1.25 1.14 0.53 0.26 0.24 10.60
Snow 5.7 5.8 8.0 6.0 1.6 0.0 0.0 0.0 1.0 2.3 4.6 4.8 39.8
City: CIRCLE
State: MT
ID: USC00241758
Lat: 47.4122
Long: -105.5950
County: McCone
Elev: 2475 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.9 33.8 45.2 58.7 68.5 78.0 86.8 86.6 74.1 58.9 42.5 30.2 57.8
Mean 18.3 23.0 33.4 45.0 55.0 64.0 71.5 70.7 58.9 45.5 31.4 19.5 44.8
Minimum 7.6 12.2 21.6 31.2 41.5 50.0 56.1 54.8 43.6 32.1 20.3 8.7 31.8
CDD 0 0 0 1 15 80 221 209 44 2 <0.5 0 572
HDD 1449 1176 980 602 325 110 21 33 229 606 1008 1412 7951
Precip 0.37 0.29 0.55 1.24 2.12 2.35 2.17 1.32 1.24 0.94 0.33 0.48 13.40
City: CLYDE PARK
State: MT
ID: USC00241840
Lat: 45.8900
Long: -110.5989
County: Park
Elev: 4890 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.57 0.59 1.09 2.01 2.75 2.58 1.58 1.34 1.30 1.29 0.76 0.56 16.42
City: COHAGEN
State: MT
ID: USC00241875
Lat: 47.0567
Long: -106.6167
County: Garfield
Elev: 2727 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.0 36.0 47.2 59.1 68.0 77.2 86.4 85.7 74.1 59.8 44.1 32.5 58.6
Mean 20.3 24.1 34.4 44.8 54.1 63.1 70.7 69.5 58.1 45.6 31.8 20.7 44.9
Minimum 8.5 12.2 21.5 30.5 40.3 49.1 54.9 53.2 42.0 31.5 19.5 8.8 31.1
CDD 0 0 0 <0.5 9 64 197 176 31 1 0 0 478
HDD 1387 1145 950 606 345 119 22 38 239 601 996 1375 7824
Precip 0.35 0.23 0.47 1.04 2.09 2.05 1.56 1.01 1.13 0.98 0.39 0.38 11.68
Snow 5.5 2.7 4.5 2.7 1.1 0.0 0.0 0.0 0.1 1.0 3.0 5.5 26.1
City: COLSTRIP
State: MT
ID: USC00241905
Lat: 45.8944
Long: -106.6336
County: Rosebud
Elev: 3218 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.0 38.2 46.7 56.0 65.7 75.0 84.6 83.9 71.9 58.2 44.8 35.4 58.1
Mean 25.0 27.4 35.6 44.5 54.1 63.0 70.7 69.4 58.4 46.0 34.2 24.7 46.2
Minimum 13.9 16.5 24.6 32.9 42.4 50.9 56.8 55.0 44.8 33.7 23.6 13.9 34.2
CDD 0 0 0 1 11 67 203 177 38 1 0 0 498
HDD 1242 1054 910 617 351 128 27 39 237 592 924 1251 7371
Precip 0.52 0.44 1.04 1.46 2.60 2.54 1.41 0.96 1.28 1.24 0.68 0.46 14.63
Snow 6.1 5.5 5.8 3.1 1.1 0.0 0.0 0.0 0.7 2.3 3.5 6.1 34.2
City: COLUMBUS
State: MT
ID: USC00241938
Lat: 45.6444
Long: -109.2675
County: Stillwater
Elev: 3602 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.8 43.4 52.0 60.9 69.6 78.3 87.2 86.0 75.2 62.2 47.3 37.4 61.6
Mean 25.1 29.2 37.4 45.5 54.2 62.3 69.5 67.7 57.8 46.5 33.8 24.3 46.2
Minimum 11.4 15.0 22.7 30.1 38.7 46.4 51.7 49.5 40.4 30.9 20.3 11.3 30.8
CDD 0 0 0 <0.5 5 45 159 122 17 <0.5 0 0 349
HDD 1237 1002 857 585 342 125 22 37 233 572 936 1260 7208
Precip 0.57 0.63 1.06 1.90 2.71 2.21 1.21 0.91 1.23 1.30 0.62 0.54 14.89
Snow 6.5 6.8 7.7 3.3 1.7 0.0 0.0 0.0 0.5 3.1 3.8 8.2 41.6
City: CONRAD
State: MT
ID: USC00241974
Lat: 48.1794
Long: -111.9614
County: Pondera
Elev: 3550 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.8 37.1 45.2 55.9 65.0 72.3 80.5 79.8 69.2 57.1 41.8 32.6 56.0
Mean 22.5 25.2 33.1 42.6 51.9 59.3 65.8 64.5 54.7 43.8 30.6 21.9 43.1
Minimum 11.2 13.3 21.0 29.4 38.8 46.3 51.0 49.2 40.2 30.6 19.5 11.1 30.2
CDD 0 0 0 <0.5 3 22 89 70 9 <0.5 0 0 192
HDD 1317 1114 989 671 409 193 65 86 318 656 1030 1338 8186
Precip 0.33 0.34 0.68 1.15 2.07 2.36 1.20 1.22 1.15 0.59 0.45 0.37 11.91
Snow 5.4 6.2 6.8 4.9 1.4 0.0 0.0 0.3 0.5 2.0 5.0 5.4 37.9
City: CONTENT 3 SSE
State: MT
ID: USC00241984
Lat: 47.9764
Long: -107.5486
County: Phillips
Elev: 2470 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.1 34.2 45.8 59.0 68.7 77.2 86.1 85.6 73.1 59.0 42.5 31.1 57.8
Mean 19.0 22.7 33.8 45.1 54.9 63.2 70.3 69.4 58.0 45.4 31.1 19.7 44.5
Minimum 7.9 11.2 21.8 31.3 41.1 49.2 54.5 53.2 42.8 31.8 19.7 8.3 31.2
CDD 0 0 0 1 14 65 189 175 32 1 0 0 477
HDD 1426 1184 967 596 327 119 25 39 243 609 1017 1404 7957
Precip 0.37 0.29 0.59 1.10 2.20 2.41 1.55 1.05 1.16 0.86 0.40 0.46 12.44
City: COOKE CITY 2 W
State: MT
ID: USC00241995
Lat: 45.0189
Long: -109.9550
County: Park
Elev: 7483 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 26.0 31.2 38.9 46.4 55.7 65.2 74.6 73.5 63.2 48.8 32.4 23.9 48.4
Mean 15.6 18.5 26.1 33.6 42.0 49.8 56.7 55.4 47.1 36.2 22.7 13.7 34.9
Minimum 5.2 5.8 13.3 20.9 28.4 34.4 38.8 37.3 30.9 23.6 13.0 3.6 21.3
CDD 0 0 0 0 0 <0.5 2 1 <0.5 0 0 0 2
HDD 1531 1302 1206 940 711 456 259 298 539 893 1269 1589 10994
Precip 2.09 1.49 1.87 1.87 2.81 3.14 2.29 1.90 1.76 1.83 1.87 1.88 24.80
Snow 35.5 27.7 28.6 18.8 9.9 2.8 0.0 0.0 2.2 11.5 27.3 36.4 200.7
City: CRESTON
State: MT
ID: USC00242104
Lat: 48.1889
Long: -114.1342
County: Flathead
Elev: 2940 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.4 35.9 44.5 54.7 63.5 70.1 79.6 79.7 68.5 54.8 40.0 30.2 54.5
Mean 24.6 27.3 34.9 43.1 51.4 57.9 64.5 63.5 53.6 42.6 32.4 23.7 43.4
Minimum 17.7 18.7 25.2 31.5 39.2 45.6 49.5 47.3 38.8 30.3 24.7 17.3 32.2
CDD 0 0 0 <0.5 3 14 70 54 3 0 0 0 144
HDD 1254 1055 935 657 426 228 84 101 344 696 980 1279 8038
Precip 1.43 1.15 1.35 1.83 2.37 3.07 1.65 1.17 1.64 1.27 1.49 1.40 19.82
Snow 11.9 9.2 6.1 1.9 0.1 0.0 0.0 0.0 0.0 0.3 4.0 14.9 48.4
City: CULBERTSON
State: MT
ID: USC00242122
Lat: 48.1503
Long: -104.5089
County: Roosevelt
Elev: 1942 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 24.5 31.0 43.8 60.5 71.1 79.3 86.8 86.5 74.5 59.5 40.2 26.5 57.1
Mean 13.3 19.7 31.6 45.4 56.1 64.7 71.1 70.0 58.5 45.2 28.9 15.6 43.5
Minimum 2.0 8.3 19.5 30.3 41.1 50.1 55.5 53.6 42.5 30.8 17.6 4.7 29.8
CDD 0 0 0 1 17 82 207 190 36 1 0 0 535
HDD 1604 1270 1034 589 293 91 17 34 231 616 1083 1531 8394
Precip 0.34 0.20 0.55 0.87 2.02 2.78 2.69 1.33 1.14 0.87 0.45 0.39 13.63
City: CUT BANK AP
State: MT
ID: USW00024137
Lat: 48.6033
Long: -112.3753
County: Glacier
Elev: 3838 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.9 35.3 42.8 53.1 62.5 70.6 79.4 79.0 67.9 55.5 40.6 32.4 54.4
Mean 22.1 24.2 31.5 41.0 49.9 57.8 64.6 63.6 53.9 42.8 30.3 22.2 42.1
Minimum 11.4 13.1 20.2 28.8 37.4 44.9 49.7 48.2 39.8 30.2 20.1 12.0 29.7
CDD 0 0 0 <0.5 2 15 72 64 8 1 0 0 163
HDD 1328 1142 1038 722 468 233 86 108 343 687 1039 1327 8522
Precip 0.20 0.21 0.50 0.78 1.95 2.55 1.28 1.16 1.22 0.44 0.36 0.20 10.85
Snow 4.0 4.1 6.4 3.9 1.2 0.0 0.0 0.0 0.4 3.0 5.6 4.4 33.0
City: DARBY
State: MT
ID: USC00242221
Lat: 46.0264
Long: -114.1764
County: Ravalli
Elev: 3880 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.0 40.7 49.8 57.5 66.9 74.6 84.1 83.2 73.2 60.1 44.0 33.8 58.8
Mean 28.2 31.3 38.7 44.9 53.1 59.8 66.8 65.7 57.3 46.8 35.0 26.2 46.2
Minimum 20.4 21.9 27.6 32.4 39.3 45.0 49.5 48.3 41.4 33.4 26.0 18.6 33.7
CDD 0 0 0 <0.5 5 26 109 86 15 <0.5 0 0 241
HDD 1141 943 815 601 374 182 53 63 246 566 900 1203 7087
Precip 1.23 0.89 0.90 1.13 1.82 2.07 1.09 1.22 1.19 1.15 1.44 1.29 15.42
City: DECKER
State: MT
ID: USC00242266
Lat: 45.0117
Long: -106.8636
County: Big Horn
Elev: 3520 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.41 0.48 0.76 1.26 1.68 2.05 1.32 0.69 1.04 0.94 0.44 0.48 11.55
Snow 1.6 1.0 1.3 0.1 0.0 0.0 0.0 0.0 0.1 0.2 0.1 3.9 8.3
City: DEER LODGE 3 W
State: MT
ID: USC00242275
Lat: 46.3911
Long: -112.7975
County: Powell
Elev: 4850 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.2 37.7 46.7 55.3 63.2 70.8 80.3 80.1 69.9 57.4 42.6 32.2 56.0
Mean 22.8 25.4 33.7 40.8 48.3 55.4 62.1 61.0 52.1 41.6 29.7 20.7 41.2
Minimum 11.4 13.1 20.7 26.2 33.3 40.1 43.9 41.9 34.2 25.9 16.8 9.2 26.5
CDD 0 0 0 <0.5 1 7 37 25 2 0 0 0 72
HDD 1308 1109 970 727 520 294 127 149 391 724 1059 1373 8751
Precip 0.25 0.32 0.41 0.70 1.88 2.05 1.67 1.29 1.00 0.54 0.26 0.25 10.62
City: DEL BONITA
State: MT
ID: USC00242301
Lat: 48.9983
Long: -112.7886
County: Glacier
Elev: 4337 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.9 32.7 39.7 51.2 61.2 68.1 76.2 76.8 66.4 53.8 38.1 29.8 52.2
Mean 21.0 23.1 29.7 39.5 48.7 56.0 62.3 61.9 52.9 41.9 28.7 20.7 40.6
Minimum 11.1 13.4 19.7 27.9 36.2 43.9 48.4 47.0 39.5 30.0 19.3 11.5 29.1
CDD 0 0 0 <0.5 2 8 45 41 8 <0.5 0 0 103
HDD 1364 1175 1094 764 507 278 128 137 369 716 1089 1375 8996
Precip 0.24 0.35 0.61 0.78 2.21 3.06 1.54 1.46 1.46 0.53 0.64 0.35 13.23
Snow 6.3 6.9 10.5 10.7 2.2 0.0 0.0 0.2 1.5 7.4 9.8 10.3 65.8
City: DENTON
State: MT
ID: USC00242347
Lat: 47.3181
Long: -109.9372
County: Fergus
Elev: 3610 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.4 38.5 46.7 56.4 65.3 73.4 82.6 82.4 71.2 59.0 44.9 35.5 57.8
Mean 22.5 24.8 32.6 41.9 51.0 58.7 65.2 64.6 54.3 42.9 30.8 21.7 42.7
Minimum 8.6 11.2 18.6 27.4 36.6 44.0 47.8 46.7 37.4 26.9 16.6 8.0 27.6
CDD 0 0 0 <0.5 3 20 79 73 9 <0.5 0 0 184
HDD 1317 1124 1003 693 438 209 73 87 330 684 1028 1341 8326
Precip 0.38 0.35 0.72 1.40 2.82 2.65 1.58 1.61 1.39 1.03 0.52 0.43 14.88
City: DILLION U OF MT WESTERN
State: MT
ID: USC00242409
Lat: 45.2128
Long: -112.6447
County: Beaverhead
Elev: 5228 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.0 39.4 47.6 56.4 65.9 74.1 83.4 81.7 71.8 58.5 42.6 32.7 57.5
Mean 25.1 28.1 35.5 43.0 51.4 58.7 65.8 63.9 55.5 44.8 32.2 23.0 44.0
Minimum 15.2 16.9 23.4 29.5 36.9 43.4 48.1 46.2 39.2 31.1 21.8 13.4 30.5
CDD 0 0 0 <0.5 1 14 75 46 5 <0.5 0 0 141
HDD 1237 1032 915 661 423 201 52 78 290 626 984 1300 7799
Precip 0.29 0.30 0.66 1.39 2.19 1.93 1.12 1.16 0.91 0.91 0.45 0.36 11.67
City: DILLON 18 WSW
State: MT
ID: USW00004137
Lat: 45.1581
Long: -113.0058
County: Beaverhead
Elev: 5971 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.0 34.1 42.2 51.9 61.2 69.7 80.4 79.8 69.2 55.7 40.3 28.1 53.7
Mean 18.1 21.7 30.7 39.3 47.2 54.7 62.5 60.5 51.8 40.8 28.2 16.2 39.4
Minimum 6.2 9.3 19.2 26.7 33.1 39.6 44.5 41.2 34.4 25.9 16.1 4.2 25.1
CDD 0 0 0 0 0 1 15 10 1 0 0 0 26
HDD 1454 1212 1063 771 553 311 94 150 397 750 1104 1514 9374
City: DILLON AIRPORT
State: MT
ID: USW00024138
Lat: 45.2575
Long: -112.5545
County: Beaverhead
Elev: 5200 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.4 37.2 46.1 54.4 63.8 72.3 82.1 80.8 70.0 56.7 41.2 30.4 55.7
Mean 22.7 26.2 34.3 41.6 50.3 58.1 65.7 64.2 54.9 43.5 30.5 20.8 42.8
Minimum 13.1 15.2 22.6 28.8 36.9 43.9 49.3 47.5 39.7 30.3 19.8 11.2 29.9
CDD 0 0 0 <0.5 1 16 77 54 8 <0.5 0 0 157
HDD 1310 1086 950 702 456 223 55 81 313 667 1035 1370 8247
Precip 0.26 0.24 0.54 1.07 1.93 1.97 1.25 1.06 0.84 0.69 0.39 0.26 10.50
City: DIVIDE
State: MT
ID: USC00242421
Lat: 45.7511
Long: -112.7547
County: Silver Bow
Elev: 5350 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.5 36.7 45.4 52.9 62.5 70.9 81.1 80.0 69.4 57.0 41.2 31.0 55.2
Mean 21.1 24.0 32.4 39.6 48.5 56.0 63.6 62.2 52.8 41.9 29.0 19.5 41.0
Minimum 8.7 11.3 19.4 26.3 34.5 41.1 46.2 44.3 36.3 26.8 16.8 8.1 26.7
CDD 0 0 0 0 1 8 54 32 2 <0.5 0 0 97
HDD 1361 1148 1011 762 512 278 96 120 367 716 1080 1409 8860
Precip 0.34 0.32 0.73 0.90 1.93 2.09 1.19 1.24 1.01 0.71 0.59 0.52 11.57
Snow 3.1 3.4 4.9 2.0 0.2 0.0 0.0 0.0 0.2 0.8 3.4 5.1 23.1
City: DODSON
State: MT
ID: USC00242438
Lat: 48.3919
Long: -108.2439
County: Phillips
Elev: 2280 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.48 0.38 0.61 0.74 2.18 2.51 1.22 0.89 1.11 0.58 0.47 0.58 11.75
Snow 2.4 0.8 0.9 0.3 0.1 0.0 0.0 0.0 0.0 0.0 3.1 5.0 12.6
City: DRUMMOND AVIATION
State: MT
ID: USW00024139
Lat: 46.6383
Long: -113.1761
County: Granite
Elev: 4000 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.8 38.2 49.3 58.5 67.1 74.9 85.1 84.1 73.1 58.5 40.8 30.2 57.8
Mean 22.6 26.8 35.8 43.1 50.9 58.3 65.0 63.8 54.7 43.5 30.2 20.8 43.0
Minimum 12.3 15.3 22.3 27.8 34.8 41.8 45.0 43.4 36.4 28.5 19.7 11.4 28.3
CDD 0 0 0 <0.5 2 16 71 51 3 <0.5 0 0 143
HDD 1316 1071 905 655 437 215 70 89 311 667 1042 1370 8150
Precip 0.67 0.58 0.73 0.95 1.82 1.86 1.12 1.17 1.06 0.80 0.87 0.75 12.38
Snow 5.3 5.1 5.4 2.1 1.9 0.5 0.0 0.1 0.5 1.0 5.1 7.0 34.0
City: DUNKIRK 19NNE
State: MT
ID: USC00242550
Lat: 48.7167
Long: -111.4747
County: Toole
Elev: 3323 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.7 35.8 45.0 56.9 66.7 73.5 81.7 81.4 69.8 58.5 43.4 32.3 56.5
Mean 18.9 22.6 32.3 42.8 52.7 59.9 66.0 65.4 54.5 43.4 29.5 18.9 42.3
Minimum 6.1 9.4 19.6 28.6 38.7 46.2 50.2 49.4 39.2 28.3 15.5 5.6 28.2
CDD 0 0 0 <0.5 6 21 99 97 12 <0.5 0 0 235
HDD 1429 1187 1014 667 388 175 70 85 327 670 1067 1427 8505
Precip 0.31 0.26 0.54 0.91 1.77 2.52 1.37 1.22 1.23 0.56 0.39 0.34 11.42
City: EAST GLACIER
State: MT
ID: USC00242629
Lat: 48.4469
Long: -113.2239
County: Glacier
Elev: 4806 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.6 34.5 40.8 48.8 58.2 66.8 74.9 74.7 63.7 53.1 38.0 31.1 51.5
Mean 22.7 24.1 30.1 38.0 46.3 53.8 60.1 59.4 50.6 41.3 29.7 22.3 39.9
Minimum 12.8 13.6 19.4 27.1 34.3 40.7 45.3 44.0 37.4 29.5 21.4 13.4 28.3
CDD 0 0 0 0 <0.5 3 25 18 2 <0.5 0 0 47
HDD 1311 1147 1082 811 582 340 176 193 435 735 1059 1325 9197
Precip 2.43 1.90 1.89 1.67 2.34 3.30 1.74 1.33 1.76 1.74 2.60 2.44 25.14
City: EKALAKA
State: MT
ID: USC00242689
Lat: 45.8903
Long: -104.5461
County: Carter
Elev: 3425 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.3 34.4 44.5 56.4 66.2 75.4 84.5 83.4 71.7 57.3 41.9 31.8 56.7
Mean 21.0 24.2 33.0 43.7 53.5 62.7 70.6 69.3 58.1 45.3 31.4 21.4 44.6
Minimum 10.7 14.0 21.6 31.0 40.7 49.9 56.7 55.3 44.5 33.2 21.0 11.1 32.6
CDD 0 0 <0.5 1 10 67 201 177 37 1 0 0 494
HDD 1364 1142 990 640 368 137 28 42 244 613 1006 1350 7926
Precip 0.53 0.50 1.03 1.82 2.71 2.77 2.04 1.23 1.42 1.42 0.78 0.56 16.81
Snow 5.9 7.5 8.9 4.6 2.1 0.0 0.0 0.0 0.1 2.3 5.9 5.8 43.1
City: ELLISTON
State: MT
ID: USC00242738
Lat: 46.5631
Long: -112.4342
County: Powell
Elev: 5080 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.5 37.2 45.0 53.8 62.6 71.3 81.6 80.9 69.9 56.3 41.0 31.9 55.5
Mean 22.9 25.2 32.6 40.6 48.9 56.4 63.8 62.4 53.2 42.2 29.6 20.7 41.6
Minimum 12.3 13.1 20.2 27.3 35.2 41.4 45.9 43.8 36.4 28.1 18.2 9.5 27.7
CDD 0 0 0 <0.5 2 9 61 40 4 <0.5 0 0 116
HDD 1305 1116 1004 733 501 269 100 123 359 707 1062 1373 8652
Precip 0.96 0.65 1.01 1.30 2.08 2.36 1.51 1.56 1.23 1.28 0.85 0.90 15.69
City: ENNIS
State: MT
ID: USC00242793
Lat: 45.3394
Long: -111.7111
County: Madison
Elev: 4953 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.8 39.1 47.6 56.7 66.1 74.1 83.5 82.5 72.3 59.1 43.1 33.2 57.8
Mean 24.4 27.1 34.5 41.8 50.1 57.3 64.4 63.0 54.1 43.7 31.9 23.0 43.0
Minimum 13.9 15.1 21.3 27.0 34.0 40.5 45.4 43.5 35.9 28.4 20.6 12.7 28.3
CDD 0 0 0 <0.5 <0.5 9 55 35 4 <0.5 0 0 104
HDD 1260 1061 947 694 464 240 72 97 331 659 994 1303 8124
Precip 0.45 0.46 0.81 1.41 2.16 2.39 1.25 1.23 0.97 1.04 0.69 0.50 13.36
Snow 8.4 6.7 7.1 6.6 1.2 0.2 0.0 0.0 0.0 1.7 5.8 7.1 44.8
City: ETHRIDGE
State: MT
ID: USC00242820
Lat: 48.5578
Long: -112.1250
County: Toole
Elev: 3544 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.21 0.20 0.52 0.93 1.85 2.59 1.21 1.20 1.40 0.52 0.30 0.15 11.08
Snow 1.6 2.6 3.2 0.9 0.0 0.0 0.0 0.0 0.0 0.5 1.1 1.9 11.8
City: EUREKA RS
State: MT
ID: USC00242827
Lat: 48.8978
Long: -115.0644
County: Lincoln
Elev: 2532 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.8 38.6 49.3 59.6 69.1 76.4 85.5 85.2 73.7 57.4 40.8 29.9 58.2
Mean 25.2 29.5 38.3 46.3 54.9 61.9 68.4 67.5 57.8 45.5 33.7 24.0 46.2
Minimum 18.6 20.5 27.2 33.1 40.8 47.4 51.3 49.7 41.9 33.5 26.6 18.1 34.1
CDD 0 0 0 <0.5 9 42 142 123 21 <0.5 0 0 339
HDD 1234 993 829 560 321 135 37 48 237 606 939 1271 7209
Precip 0.98 0.66 0.88 0.95 1.91 2.45 1.49 1.11 1.26 1.00 1.33 1.06 15.08
Snow 8.0 5.1 3.5 0.9 0.2 0.0 0.0 0.0 0.0 0.3 5.7 10.1 33.8
City: FAIRFIELD
State: MT
ID: USC00242857
Lat: 47.6153
Long: -111.9855
County: Teton
Elev: 3983 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.2 38.4 45.8 54.5 63.6 70.9 79.8 79.6 68.9 57.1 42.9 35.1 56.2
Mean 26.0 27.7 34.7 42.9 51.9 59.1 66.1 65.3 55.9 45.3 33.3 25.6 44.6
Minimum 15.8 17.1 23.5 31.4 40.3 47.3 52.4 51.1 42.8 33.4 23.8 16.1 33.0
CDD 0 0 0 1 7 26 99 93 22 1 0 0 249
HDD 1209 1043 941 662 412 203 65 82 296 614 949 1221 7697
Precip 0.33 0.32 0.70 1.24 2.13 2.41 1.31 1.35 1.26 0.64 0.37 0.34 12.40
Snow 6.1 5.2 10.3 4.2 0.7 0.0 0.0 0.0 1.8 2.6 4.2 8.2 43.3
City: FISHTAIL
State: MT
ID: USC00242996
Lat: 45.4533
Long: -109.5072
County: Stillwater
Elev: 4500 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.51 0.71 1.12 1.94 3.44 2.99 1.61 1.19 1.36 1.68 0.74 0.56 17.85
Snow 8.8 10.5 13.6 8.3 1.9 0.0 0.0 0.0 1.0 5.5 6.9 10.4 66.9
City: FLATWILLOW 4 ENE
State: MT
ID: USC00243013
Lat: 46.8511
Long: -108.3133
County: Petroleum
Elev: 3133 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.2 41.7 50.4 60.9 69.9 78.0 87.4 87.2 75.6 62.5 47.6 37.6 61.5
Mean 25.6 28.6 36.9 45.9 54.8 63.1 70.5 69.7 59.2 47.9 34.8 24.9 46.9
Minimum 13.0 15.5 23.4 30.8 39.6 48.3 53.6 52.3 42.9 33.2 21.9 12.3 32.3
CDD 0 0 0 <0.5 9 58 192 176 37 1 <0.5 0 473
HDD 1221 1019 871 575 327 114 21 29 210 533 907 1241 7068
Precip 0.39 0.33 0.68 1.26 2.57 2.50 1.34 1.06 0.96 0.96 0.44 0.69 13.18
City: FORKS 4 NNE
State: MT
ID: USC00243089
Lat: 48.7778
Long: -107.4536
County: Phillips
Elev: 2599 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 25.0 29.4 42.2 58.0 68.3 76.2 85.3 84.6 71.6 57.3 39.6 26.3 55.4
Mean 14.3 18.8 30.8 44.1 54.3 62.2 69.6 69.0 57.0 44.3 28.8 16.5 42.6
Minimum 3.7 8.2 19.4 30.2 40.3 48.2 54.0 53.4 42.5 31.3 18.0 6.7 29.8
CDD 0 0 0 1 14 61 173 171 33 <0.5 0 0 454
HDD 1570 1293 1060 628 346 145 29 48 272 642 1086 1503 8623
Precip 0.16 0.28 0.44 0.85 2.33 2.54 1.61 1.02 1.17 0.74 0.46 0.31 11.91
City: FORSYTH
State: MT
ID: USC00243098
Lat: 46.2719
Long: -106.6744
County: Rosebud
Elev: 2515 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.7 39.7 49.8 61.1 70.4 79.2 88.3 87.2 75.3 61.2 46.0 34.5 60.7
Mean 22.3 26.7 36.5 46.8 56.4 65.1 72.5 71.1 59.9 47.0 33.6 22.5 46.8
Minimum 9.9 13.7 23.2 32.5 42.4 51.1 56.8 54.9 44.4 32.9 21.2 10.5 32.9
CDD 0 0 0 1 16 90 244 209 39 1 0 0 600
HDD 1324 1072 884 547 282 86 10 21 194 557 942 1317 7236
Precip 0.45 0.44 0.97 1.51 2.54 2.37 1.50 1.10 1.40 1.23 0.68 0.54 14.73
Snow 4.6 3.9 3.2 2.0 0.8 0.0 0.0 0.0 0.3 1.1 3.6 6.5 26.0
City: FORTINE 1 N
State: MT
ID: USC00243139
Lat: 48.7783
Long: -114.8997
County: Lincoln
Elev: 3000 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.9 36.2 46.2 56.8 66.3 73.4 82.7 82.6 71.3 55.0 38.4 28.2 55.7
Mean 23.1 27.4 35.7 43.8 52.2 59.0 65.5 64.7 54.8 42.8 31.4 22.1 43.6
Minimum 16.4 18.6 25.1 30.8 38.0 44.5 48.4 46.9 38.2 30.6 24.4 15.9 31.6
CDD 0 0 0 <0.5 3 14 83 66 6 <0.5 0 0 173
HDD 1297 1053 910 636 402 195 66 74 314 688 1008 1331 7974
Precip 0.89 0.67 0.90 1.03 2.00 2.69 1.68 0.97 1.38 0.87 1.32 1.09 15.49
Snow 8.2 6.4 4.8 1.8 0.2 0.0 0.0 0.0 0.0 0.9 7.2 9.0 38.5
City: FT ASSINNIBOINE
State: MT
ID: USC00243110
Lat: 48.4983
Long: -109.7972
County: Hill
Elev: 2613 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.0 35.2 46.2 59.6 69.2 77.3 86.4 85.8 73.5 59.9 42.7 31.4 58.2
Mean 19.4 23.8 34.0 45.7 55.2 63.2 70.3 69.3 58.2 46.0 31.7 20.7 44.9
Minimum 8.9 12.3 21.8 31.7 41.2 49.1 54.1 52.8 42.8 32.1 20.7 9.9 31.6
CDD 0 0 0 1 15 62 187 173 30 1 0 0 469
HDD 1412 1155 961 581 319 116 24 40 236 590 999 1375 7807
Precip 0.44 0.29 0.59 0.96 2.16 2.60 1.80 1.14 1.29 0.74 0.54 0.43 12.98
Snow 5.8 5.1 3.0 1.8 0.6 0.0 0.0 0.0 0.0 1.0 4.3 7.7 29.3
City: FT BENTON
State: MT
ID: USC00243113
Lat: 47.8306
Long: -110.6608
County: Chouteau
Elev: 2649 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.8 39.3 48.7 59.5 68.7 76.9 85.7 85.0 73.1 60.6 45.8 35.1 59.5
Mean 22.4 26.1 34.6 44.9 54.6 62.9 69.5 68.4 57.0 45.3 32.8 23.2 45.2
Minimum 9.9 12.9 20.4 30.3 40.5 48.9 53.2 51.7 40.9 30.0 19.9 11.3 30.9
CDD 0 0 0 1 10 53 164 146 19 1 0 0 392
HDD 1322 1089 944 604 332 116 26 42 259 611 965 1296 7605
Precip 0.45 0.37 0.83 1.18 2.20 2.30 1.34 1.34 1.29 0.83 0.53 0.54 13.20
Snow 7.2 5.9 6.0 2.9 0.6 0.0 0.0 0.0 0.0 1.6 5.8 9.3 39.3
City: FT LOGAN 4 ESE
State: MT
ID: USC00243157
Lat: 46.6547
Long: -111.0939
County: Meagher
Elev: 4710 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.28 0.20 0.55 1.18 2.00 2.24 1.43 1.09 1.12 0.57 0.38 0.31 11.35
Snow 5.4 4.7 9.0 6.6 2.0 0.0 0.0 0.1 1.1 3.0 4.8 6.3 43.0
City: FT PECK PWR PLT
State: MT
ID: USC00243176
Lat: 48.0119
Long: -106.4117
County: McCone
Elev: 2070 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.9 34.3 46.5 61.0 71.5 80.5 88.8 88.4 75.9 61.6 44.4 31.7 59.6
Mean 18.0 23.1 34.5 47.1 57.6 66.4 73.2 72.4 61.0 48.7 33.7 21.0 46.5
Minimum 7.0 11.9 22.5 33.3 43.6 52.3 57.6 56.3 46.0 35.9 23.0 10.4 33.4
CDD 0 0 0 2 23 105 263 246 53 2 0 0 695
HDD 1458 1173 945 537 254 63 9 18 175 506 939 1362 7441
Precip 0.26 0.21 0.36 0.89 2.17 2.35 2.16 1.15 0.91 0.83 0.32 0.34 11.95
City: GALATA 16 SW
State: MT
ID: USC00243346
Lat: 48.2922
Long: -111.5675
County: Toole
Elev: 3550 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.41 0.33 0.76 1.14 1.99 2.54 1.45 1.29 1.24 0.73 0.46 0.45 12.79
Snow 6.8 5.1 7.6 5.2 1.2 0.0 0.0 0.0 0.0 1.9 5.3 6.1 39.2
City: GALLATIN GATEWAY 10SSW
State: MT
ID: USC00243366
Lat: 45.4453
Long: -111.2367
County: Gallatin
Elev: 5441 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 1.19 0.93 1.75 2.47 3.37 3.25 1.59 1.78 1.56 1.81 1.27 1.24 22.21
City: GARDINER
State: MT
ID: USC00243378
Lat: 45.0317
Long: -110.7036
County: Park
Elev: 5275 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.5 38.8 48.6 57.7 67.5 76.8 86.6 85.5 74.9 60.0 42.7 32.8 59.0
Mean 25.5 28.8 37.1 44.7 53.4 61.6 69.7 68.5 59.0 47.0 33.3 24.5 46.2
Minimum 16.5 18.8 25.6 31.8 39.3 46.4 52.8 51.5 43.1 34.0 23.9 16.2 33.4
CDD 0 0 0 <0.5 5 47 171 138 24 1 0 0 386
HDD 1224 1014 865 608 365 149 26 29 204 559 951 1255 7248
Precip 0.38 0.36 0.71 0.76 1.83 1.32 1.08 0.70 0.81 0.79 0.88 0.40 10.02
City: GEORGETOWN LAKE - 7 GABLES
State: MT
ID: USC00243437
Lat: 46.1922
Long: -113.2631
County: Deer Lodge
Elev: 6410 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.3 34.2 39.8 46.0 52.4 63.3 72.4 72.7 62.4 49.9 38.9 30.3 49.6
Mean 19.9 19.8 26.3 33.7 41.9 51.4 57.8 57.0 48.9 37.9 28.8 19.4 37.0
Minimum 7.6 5.3 12.7 21.3 31.4 39.5 43.2 41.3 35.3 25.9 18.6 8.5 24.3
CDD 0 0 0 0 0 <0.5 2 2 1 0 0 0 5
HDD 1397 1267 1201 941 716 408 225 250 486 840 1088 1413 10232
City: GERALDINE
State: MT
ID: USC00243445
Lat: 47.6014
Long: -110.2669
County: Chouteau
Elev: 3145 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.7 40.8 49.2 59.1 68.2 76.7 86.0 85.6 73.9 60.9 46.2 37.0 60.2
Mean 25.9 28.8 36.5 45.8 54.6 62.8 70.0 69.1 58.8 47.3 34.7 25.6 46.8
Minimum 14.1 16.8 23.9 32.5 40.9 48.9 54.0 52.7 43.7 33.7 23.3 14.2 33.3
CDD 0 0 <0.5 1 11 55 180 166 33 2 <0.5 0 448
HDD 1212 1014 882 577 335 121 25 37 219 551 908 1221 7101
Precip 0.65 0.52 1.01 1.58 2.71 2.68 1.73 1.52 1.63 0.94 0.65 0.70 16.32
Snow 9.9 8.2 8.6 4.7 1.7 0.0 0.0 0.0 0.5 2.8 7.3 9.2 52.9
City: GIBSON 2 NE
State: MT
ID: USC00243486
Lat: 46.0400
Long: -109.4939
County: Sweet Grass
Elev: 4464 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.40 0.45 0.94 1.69 2.43 2.73 1.88 1.37 1.41 1.12 0.59 0.48 15.49
Snow 8.8 8.8 13.7 12.7 3.5 0.1 0.0 0.2 2.2 7.2 9.0 9.0 75.2
City: GIBSON DAM
State: MT
ID: USC00243489
Lat: 47.6017
Long: -112.7536
County: Teton
Elev: 4590 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.0 37.1 42.4 50.2 59.3 67.3 77.0 76.6 66.2 54.4 40.9 33.2 53.4
Mean 25.4 26.8 32.0 39.3 47.2 54.4 61.7 60.5 52.1 42.9 32.0 24.2 41.6
Minimum 15.8 16.5 21.7 28.4 35.1 41.5 46.3 44.4 37.9 31.4 23.2 15.1 29.8
CDD 0 0 0 0 <0.5 4 32 21 2 0 0 0 59
HDD 1228 1070 1021 771 552 322 136 160 390 685 988 1266 8590
Precip 0.66 0.63 0.95 1.44 2.57 2.92 1.49 1.64 1.50 0.98 0.70 0.62 16.10
Snow 6.8 10.8 11.6 7.5 2.0 0.0 0.0 0.2 0.3 3.9 5.7 7.6 56.4
City: GILDFORD
State: MT
ID: USC00243530
Lat: 48.5653
Long: -110.3022
County: Hill
Elev: 2820 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.5 35.2 45.6 58.1 67.9 75.8 84.8 83.4 71.0 58.3 42.5 32.0 57.3
Mean 19.7 23.1 33.2 44.1 53.8 61.8 68.5 67.0 56.1 44.5 30.7 20.0 43.6
Minimum 7.9 11.0 20.7 30.0 39.7 47.7 52.1 50.7 41.2 30.6 19.0 8.1 30.0
CDD 0 0 0 <0.5 9 42 142 122 15 <0.5 0 0 331
HDD 1404 1173 987 629 356 140 35 59 282 637 1027 1393 8123
Precip 0.34 0.21 0.41 0.82 1.93 2.35 1.27 1.19 1.19 0.63 0.46 0.33 11.13
City: GLASGOW #2
State: MT
ID: USC00243557
Lat: 48.1928
Long: -106.6383
County: Valley
Elev: 2090 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 24.5 30.9 44.3 60.6 70.5 79.4 87.3 85.6 72.7 57.0 39.9 26.1 56.7
Mean 14.5 20.4 33.0 47.0 57.2 66.2 72.9 71.3 59.0 45.3 29.4 16.4 44.5
Minimum 4.4 9.8 21.6 33.4 43.8 52.9 58.6 56.9 45.3 33.5 18.8 6.7 32.3
CDD 0 0 0 1 20 106 254 219 36 1 0 0 636
HDD 1567 1250 993 541 263 71 8 25 216 613 1069 1506 8124
City: GLASGOW 14 NW
State: MT
ID: USC00243554
Lat: 48.3511
Long: -106.8569
County: Valley
Elev: 2118 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.36 0.25 0.42 0.87 2.28 2.80 1.70 1.06 1.18 0.73 0.39 0.38 12.42
City: GLASGOW 46 SW
State: MT
ID: USC00243556
Lat: 47.7086
Long: -107.2658
County: Valley
Elev: 2906 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.55 0.27 0.52 1.00 2.39 2.83 1.66 1.33 1.18 0.84 0.54 0.40 13.51
City: GLASGOW WFO
State: MT
ID: USW00094008
Lat: 48.2231
Long: -106.6256
County: Valley
Elev: 2271 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.4 29.1 42.4 57.8 67.8 76.7 85.1 84.4 71.8 57.0 39.7 26.0 55.2
Mean 13.8 19.2 31.7 44.9 55.1 64.0 71.1 70.2 58.2 44.7 29.3 16.3 43.3
Minimum 4.2 9.4 20.9 32.1 42.3 51.3 57.1 56.0 44.6 32.4 19.0 6.6 31.4
CDD 0 0 0 1 16 75 207 196 37 1 0 0 533
HDD 1587 1281 1034 603 324 105 18 35 241 630 1069 1509 8437
Precip 0.37 0.26 0.42 0.85 1.92 2.33 1.78 1.24 0.94 0.75 0.40 0.40 11.66
Snow 8.0 4.4 4.7 1.9 1.2 0.0 0.0 0.0 0.2 1.3 5.1 8.0 34.8
City: GLEN 2 E
State: MT
ID: USC00243570
Lat: 45.4686
Long: -112.6561
County: Madison
Elev: 4960 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.1 41.2 49.4 57.8 67.0 75.2 85.0 83.8 73.8 60.6 44.9 34.5 59.3
Mean 21.9 25.2 33.7 41.2 49.9 57.3 64.4 62.4 53.4 42.4 29.8 20.0 41.9
Minimum 6.7 9.2 18.0 24.6 32.7 39.3 43.8 41.1 32.9 24.2 14.6 5.4 24.5
CDD 0 0 0 <0.5 1 11 57 28 2 0 0 0 99
HDD 1336 1114 970 714 471 244 76 107 351 701 1057 1396 8538
Precip 0.23 0.19 0.44 0.77 1.64 1.77 1.04 1.07 0.76 0.50 0.39 0.24 9.04
Snow 2.7 1.4 1.4 1.1 0.1 0.0 0.0 0.0 0.1 0.2 1.6 2.2 10.8
City: GLENDIVE
State: MT
ID: USC00243581
Lat: 47.1064
Long: -104.7183
County: Dawson
Elev: 2076 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.1 34.7 45.7 59.8 70.0 79.1 87.9 87.7 75.6 60.2 42.8 30.3 58.7
Mean 18.9 24.0 34.6 47.0 57.2 66.5 73.8 72.9 61.3 47.7 33.0 20.7 46.6
Minimum 8.7 13.3 23.4 34.2 44.5 54.0 59.8 58.1 47.0 35.3 23.1 11.0 34.5
CDD 0 0 <0.5 2 25 118 287 264 63 3 0 0 761
HDD 1429 1148 944 542 266 71 12 19 174 537 961 1375 7479
Precip 0.36 0.26 0.60 1.28 2.23 2.40 1.88 1.38 1.27 1.06 0.45 0.38 13.55
Snow 4.1 3.5 3.3 1.7 0.4 0.0 0.0 0.0 0.0 1.1 2.2 3.6 19.9
City: GOLDBUTTE 7 N
State: MT
ID: USC00243617
Lat: 48.9761
Long: -111.3994
County: Toole
Elev: 3498 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.8 36.9 45.0 56.4 65.3 72.2 80.9 80.5 69.5 56.8 42.4 33.8 56.3
Mean 23.3 25.2 33.0 42.9 51.6 58.5 64.9 64.0 54.7 43.9 31.3 22.8 43.1
Minimum 11.8 13.6 21.1 29.4 37.8 44.7 49.0 47.6 40.0 31.1 20.1 11.9 29.9
CDD 0 0 0 <0.5 5 19 80 71 15 <0.5 0 0 192
HDD 1293 1113 990 663 422 216 82 101 322 653 1012 1306 8174
Precip 0.42 0.34 0.76 1.16 2.08 3.01 1.32 1.62 1.63 0.83 0.53 0.47 14.17
Snow 12.8 11.1 16.2 10.0 4.2 0.2 0.0 0.3 0.8 5.6 9.2 12.1 82.5
City: GRANT 5 SE
State: MT
ID: USC00243707
Lat: 44.9411
Long: -113.0283
County: Beaverhead
Elev: 5780 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.35 0.29 0.65 1.02 1.77 1.78 1.05 0.98 0.80 0.85 0.51 0.38 10.43
Snow 4.4 4.2 7.1 7.7 2.7 0.4 0.0 0.0 0.8 3.8 4.6 5.1 40.8
City: GRASS RANGE
State: MT
ID: USC00243727
Lat: 47.0258
Long: -108.8031
County: Fergus
Elev: 3490 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.7 39.8 47.5 57.2 66.2 74.1 83.0 82.6 71.3 59.4 45.7 36.8 58.5
Mean 25.8 28.0 35.3 44.1 52.8 60.7 67.8 67.0 56.8 46.2 34.0 25.4 45.4
Minimum 14.0 16.2 23.1 30.9 39.5 47.4 52.6 51.4 42.2 33.0 22.2 14.0 32.3
CDD 0 0 0 1 6 36 129 115 19 1 0 0 307
HDD 1214 1036 921 629 382 164 43 54 267 583 931 1227 7451
Precip 0.61 0.39 1.00 1.56 3.13 2.95 1.85 1.54 1.19 1.05 0.63 0.66 16.56
Snow 8.3 6.4 10.3 4.6 0.8 0.0 0.0 0.0 0.3 3.0 4.9 8.6 47.2
City: GREAT FALLS 16ST
State: MT
ID: USC00243749
Lat: 47.4883
Long: -111.2781
County: Cascade
Elev: 3505 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.5 39.4 48.9 59.2 67.1 76.0 84.9 83.4 71.9 60.1 45.4 36.0 59.3
Mean 27.3 28.7 36.7 46.0 54.3 62.6 69.6 68.2 57.9 47.7 35.8 26.8 46.9
Minimum 17.0 17.9 24.5 32.8 41.4 49.2 54.3 52.9 43.8 35.3 26.1 17.6 34.5
CDD 0 0 0 <0.5 6 42 161 129 27 <0.5 0 0 366
HDD 1170 1017 877 571 339 114 19 32 242 537 878 1184 6980
Precip 0.46 0.41 0.84 1.35 2.18 2.49 1.46 1.54 1.26 0.92 0.57 0.50 13.98
City: GREAT FALLS AP
State: MT
ID: USW00024143
Lat: 47.4733
Long: -111.3822
County: Cascade
Elev: 3664 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.5 38.3 45.9 55.6 64.8 73.3 83.4 82.3 70.3 57.7 43.3 34.6 57.2
Mean 25.2 27.3 34.2 43.1 51.7 59.7 67.4 66.3 56.1 45.2 33.4 24.8 44.6
Minimum 14.9 16.4 22.6 30.5 38.6 46.1 51.4 50.4 42.0 32.8 23.4 14.9 32.1
CDD 0 0 0 1 6 32 124 113 21 1 0 0 297
HDD 1234 1054 953 659 418 191 50 71 286 613 949 1248 7726
Precip 0.51 0.47 0.91 1.42 2.42 2.53 1.50 1.57 1.42 0.86 0.59 0.55 14.75
Snow 8.5 8.3 11.9 8.6 2.8 0.3 0.0 0.3 1.2 4.1 8.1 9.0 63.1
City: GREAT FALLS WFO
State: MT
ID: USC00243753
Lat: 47.4597
Long: -111.3847
County: Cascade
Elev: 3705 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.4 38.5 46.2 55.5 64.7 73.2 83.1 81.4 69.7 57.7 43.6 35.2 57.2
Mean 26.1 27.9 34.8 43.4 52.4 60.3 68.2 66.8 56.7 45.7 34.1 25.6 45.3
Minimum 15.8 17.4 23.4 31.4 40.0 47.3 53.2 52.3 43.6 33.6 24.6 16.0 33.3
CDD 0 0 0 <0.5 5 27 135 120 27 <0.5 0 0 315
HDD 1206 1037 936 647 397 170 37 63 278 600 927 1221 7519
Precip 0.53 0.48 0.93 1.44 2.45 2.57 1.28 1.55 1.44 0.81 0.60 0.55 14.63
Snow 9.1 8.6 11.0 11.5 2.5 0.5 0.0 0.0 0.4 3.3 7.8 9.2 63.9
City: HAMILTON
State: MT
ID: USC00243885
Lat: 46.2553
Long: -114.1642
County: Ravalli
Elev: 3545 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.6 41.4 50.8 58.5 67.2 75.0 84.9 83.6 72.6 58.9 43.9 34.1 59.1
Mean 27.2 30.3 38.0 45.1 53.1 60.2 67.5 65.7 56.4 45.0 33.7 25.1 45.7
Minimum 17.8 19.1 25.1 31.6 39.1 45.5 50.1 47.9 40.1 31.2 23.4 16.2 32.3
CDD 0 0 0 <0.5 6 30 122 87 10 <0.5 0 0 256
HDD 1172 973 839 599 373 172 45 64 270 619 941 1235 7301
Precip 0.86 0.82 0.96 1.04 1.68 1.58 0.97 1.03 1.04 0.76 1.17 1.22 13.13
City: HARDIN
State: MT
ID: USC00243915
Lat: 45.7322
Long: -107.6081
County: Big Horn
Elev: 2905 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.3 43.2 53.5 63.5 72.9 82.0 91.4 90.5 78.9 64.7 48.2 37.0 63.7
Mean 24.7 29.6 39.2 48.3 57.7 66.3 74.0 72.6 61.7 49.1 34.9 24.5 48.7
Minimum 12.2 16.1 24.8 33.2 42.6 50.6 56.7 54.6 44.6 33.5 21.5 12.0 33.6
CDD 0 0 0 1 22 110 289 249 56 2 0 0 729
HDD 1248 990 801 501 247 71 9 15 154 495 904 1255 6689
Precip 0.41 0.39 0.78 1.25 2.25 1.58 1.31 0.65 1.15 1.23 0.53 0.50 12.03
City: HARLEM 20S
State: MT
ID: USC00243934
Lat: 48.2383
Long: -108.6775
County: Blaine
Elev: 2695 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.6 34.7 44.8 57.8 66.2 75.8 84.5 84.0 72.4 59.4 43.9 33.3 57.5
Mean 16.9 20.7 30.6 41.5 49.6 57.3 64.7 62.8 52.2 41.9 29.5 19.7 40.7
Minimum 2.1 6.6 16.3 25.1 33.0 38.7 44.9 41.6 32.0 24.3 15.0 6.1 23.9
CDD 0 0 0 <0.5 3 19 85 72 10 <0.5 0 0 191
HDD 1493 1242 1068 707 481 252 95 140 394 718 1066 1404 9059
Precip 0.46 0.35 0.62 1.30 2.40 2.57 1.60 1.18 1.25 0.77 0.46 0.48 13.44
City: HARLEM
State: MT
ID: USC00243929
Lat: 48.5353
Long: -108.7964
County: Blaine
Elev: 2371 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.9 35.9 47.6 61.7 71.2 78.4 86.6 86.4 74.6 61.8 44.9 32.7 59.6
Mean 19.4 23.4 34.7 46.4 56.1 63.9 70.3 69.4 58.4 46.6 32.2 20.3 45.2
Minimum 6.9 10.9 21.7 31.0 41.0 49.3 53.9 52.5 42.1 31.4 19.4 7.9 30.8
CDD 0 0 0 1 16 65 184 172 26 1 0 0 464
HDD 1413 1165 941 560 292 99 22 34 226 571 985 1386 7694
Precip 0.41 0.28 0.47 0.76 2.06 2.42 1.49 0.97 1.27 0.61 0.45 0.42 11.61
Snow 4.2 4.0 3.0 1.3 0.0 0.0 0.0 0.0 0.0 0.4 3.6 3.3 19.8
City: HARLOWTON
State: MT
ID: USC00243939
Lat: 46.4328
Long: -109.8311
County: Wheatland
Elev: 4178 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.8 39.5 46.9 55.0 65.0 73.8 82.7 82.6 71.2 58.0 43.4 34.2 57.4
Mean 24.1 26.4 32.9 41.1 50.9 59.5 66.0 65.1 54.5 43.1 31.3 23.5 43.3
Minimum 12.4 13.3 18.9 27.2 36.7 45.2 49.4 47.6 37.8 28.2 19.2 12.8 29.1
CDD 0 0 0 <0.5 1 24 88 74 7 <0.5 0 0 194
HDD 1268 1081 995 717 440 189 55 71 322 679 1011 1286 8114
Precip 0.32 0.35 0.68 1.45 2.14 2.73 1.70 1.43 1.04 0.71 0.44 0.44 13.43
Snow 4.5 4.6 5.0 4.0 1.1 0.0 0.0 0.0 0.8 1.4 4.3 4.2 29.9
City: HAUGAN 1 W
State: MT
ID: USC00243984
Lat: 47.3889
Long: -115.4225
County: Mineral
Elev: 3160 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.2 35.9 44.7 54.6 63.9 71.3 81.2 80.8 70.3 53.6 36.8 29.3 54.5
Mean 23.3 26.6 33.9 41.1 49.2 55.8 62.3 61.4 52.7 41.3 30.4 23.2 41.9
Minimum 16.4 17.4 23.1 27.6 34.5 40.3 43.4 42.1 35.2 29.1 24.1 17.1 29.2
CDD 0 0 0 0 2 5 39 26 2 0 0 0 74
HDD 1293 1074 964 717 492 281 123 136 369 733 1036 1296 8514
Precip 3.64 2.90 2.99 2.14 2.45 2.47 1.12 1.25 1.40 2.29 4.11 3.94 30.70
City: HAVRE AP ASOS
State: MT
ID: USW00094012
Lat: 48.5428
Long: -109.7633
County: Hill
Elev: 2585 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.8 33.6 44.6 58.0 67.5 75.8 84.9 84.0 71.4 58.2 41.6 30.2 56.7
Mean 18.0 22.2 32.8 44.4 54.0 62.2 69.2 68.0 56.5 44.3 30.2 19.1 43.5
Minimum 7.2 10.9 21.0 30.8 40.5 48.5 53.6 52.0 41.6 30.4 18.8 8.0 30.4
CDD 0 0 0 1 10 48 162 146 19 1 0 0 387
HDD 1457 1197 998 619 351 133 30 53 274 642 1044 1423 8222
Precip 0.33 0.28 0.54 0.84 1.74 2.19 1.64 1.11 1.12 0.58 0.43 0.40 11.20
Snow 6.8 5.8 6.3 3.0 1.8 0.0 0.0 0.0 0.3 2.0 5.3 7.2 38.5
City: HAXBY 18 SW
State: MT
ID: USC00244007
Lat: 47.5667
Long: -106.7000
County: Garfield
Elev: 2651 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.8 36.3 47.0 60.5 69.9 79.3 87.7 87.8 75.2 60.2 44.1 32.3 59.5
Mean 19.1 23.1 33.0 44.1 54.4 62.9 70.3 69.3 57.2 45.1 30.5 19.6 44.2
Minimum 5.4 9.9 18.9 27.7 38.9 46.4 52.9 50.8 39.2 30.0 17.0 6.9 28.8
CDD 0 0 0 <0.5 9 65 184 169 27 <0.5 0 0 456
HDD 1423 1173 994 628 338 130 20 37 261 618 1033 1406 8060
City: HEBGEN DAM
State: MT
ID: USC00244038
Lat: 44.8667
Long: -111.3392
County: Gallatin
Elev: 6489 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 22.6 27.4 38.2 47.4 59.0 68.9 78.1 77.9 67.3 51.3 33.9 21.9 49.6
Mean 12.8 16.0 25.7 35.2 45.5 53.9 61.3 60.5 51.8 39.7 25.8 13.3 36.9
Minimum 3.0 4.5 13.1 23.0 32.0 38.9 44.5 43.1 36.2 28.1 17.7 4.7 24.2
CDD 0 0 0 0 <0.5 1 16 8 <0.5 0 0 0 25
HDD 1618 1373 1220 894 605 334 130 147 398 784 1176 1603 10282
Precip 2.82 2.35 2.23 2.03 2.98 3.09 1.95 1.49 1.50 1.97 2.55 3.07 28.03
Snow 41.5 32.1 25.2 8.5 1.3 0.0 0.0 0.0 0.1 4.6 25.6 43.4 182.3
City: HELENA AP ASOS
State: MT
ID: USW00024144
Lat: 46.6056
Long: -111.9636
County: Lewis and Clark
Elev: 3828 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.3 38.6 48.2 57.8 67.1 75.7 85.7 84.5 72.6 58.7 43.1 31.7 58.2
Mean 23.1 27.7 36.3 44.9 54.0 62.1 70.0 68.3 57.8 45.6 32.5 21.8 45.4
Minimum 13.0 16.9 24.3 32.1 40.8 48.5 54.3 52.2 43.1 32.5 22.0 11.9 32.7
CDD 0 0 0 <0.5 8 49 181 145 23 <0.5 0 0 407
HDD 1297 1043 891 602 351 136 27 42 237 602 974 1339 7540
Precip 0.36 0.30 0.59 0.98 1.87 2.06 1.19 1.20 1.10 0.68 0.49 0.40 11.22
Snow 6.2 5.0 6.2 3.7 0.9 0.0 0.0 0.3 1.3 2.5 4.7 7.3 38.1
City: HERON 2 NW
State: MT
ID: USC00244084
Lat: 48.0800
Long: -116.0014
County: Sanders
Elev: 2240 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.0 37.9 46.8 57.4 66.3 73.0 81.3 80.9 70.2 54.6 39.7 31.7 56.2
Mean 27.7 30.4 37.0 44.7 52.4 58.7 64.2 63.4 55.0 43.9 34.2 26.7 44.9
Minimum 22.3 22.8 27.2 32.0 38.4 44.5 47.1 45.8 39.7 33.3 28.6 21.7 33.7
CDD 0 0 0 0 2 13 54 44 3 0 0 0 116
HDD 1158 970 868 609 394 200 79 96 305 653 925 1187 7443
Precip 4.25 2.91 2.94 2.36 2.83 2.82 1.38 1.07 1.73 2.69 4.61 4.15 33.74
Snow 24.5 11.9 8.6 1.3 0.1 0.0 0.0 0.0 0.0 0.3 8.5 24.8 80.0
City: HINGHAM 12 N
State: MT
ID: USC00244174
Lat: 48.7261
Long: -110.4550
County: Hill
Elev: 2950 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.26 0.21 0.40 0.71 1.85 2.18 1.18 1.14 1.19 0.59 0.31 0.22 10.24
Snow 2.9 3.8 3.1 0.4 0.2 0.0 0.0 0.0 0.0 0.7 2.1 2.0 15.2
City: HINSDALE 21 SW
State: MT
ID: USC00244181
Lat: 48.1267
Long: -107.3128
County: Valley
Elev: 2355 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.34 0.33 0.53 1.24 2.20 2.42 1.56 1.03 1.21 0.71 0.34 0.36 12.27
City: HINSDALE 4 SW
State: MT
ID: USC00244180
Lat: 48.3475
Long: -107.1528
County: Valley
Elev: 2805 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 27.4 30.5 42.3 57.3 67.4 75.8 84.2 83.9 71.3 56.7 40.4 28.2 55.6
Mean 18.6 22.2 32.8 45.5 55.3 63.9 71.0 70.4 58.9 46.2 31.7 19.6 44.8
Minimum 9.7 13.8 23.3 33.7 43.2 51.9 57.8 56.9 46.6 35.7 23.1 11.0 34.0
CDD 0 0 0 1 18 75 206 202 47 2 0 0 550
HDD 1440 1200 998 586 319 109 20 34 228 585 997 1407 7924
Precip 0.43 0.28 0.65 1.30 2.92 2.98 1.80 1.43 1.49 1.00 0.55 0.47 15.30
City: HOBSON
State: MT
ID: USC00244193
Lat: 46.9997
Long: -109.8694
County: Judith Basin
Elev: 4244 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.1 38.0 47.1 57.1 65.4 72.1 81.6 82.0 71.8 57.7 45.1 36.1 57.7
Mean 25.8 27.6 35.0 44.2 52.6 59.5 66.9 66.7 57.0 45.2 34.4 25.9 45.1
Minimum 14.4 17.2 22.9 31.2 39.8 46.8 52.1 51.4 42.2 32.7 23.8 15.6 32.6
CDD 0 0 0 1 3 15 97 104 28 <0.5 0 0 248
HDD 1217 1047 930 626 388 181 41 52 268 614 917 1213 7493
Precip 0.48 0.45 0.73 1.47 2.37 2.26 1.77 1.44 0.93 0.92 0.74 0.77 14.33
City: HOLTER DAM
State: MT
ID: USC00244241
Lat: 46.9914
Long: -112.0122
County: Lewis and Clark
Elev: 3487 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.5 41.6 49.7 58.8 68.3 76.5 86.1 85.6 74.1 60.9 45.9 37.4 60.4
Mean 29.1 31.3 37.8 45.7 54.0 61.8 68.9 68.1 58.6 48.8 37.2 28.9 47.6
Minimum 19.7 21.0 25.9 32.6 39.7 47.1 51.7 50.5 43.2 36.7 28.5 20.4 34.8
CDD 0 0 0 1 7 42 149 135 24 2 <0.5 0 359
HDD 1113 944 843 579 348 138 28 40 215 504 834 1119 6705
Precip 0.31 0.28 0.58 1.41 2.38 2.45 1.33 1.32 1.38 0.87 0.45 0.40 13.16
Snow 6.2 6.3 4.8 2.0 0.6 0.1 0.0 0.0 0.3 1.1 3.3 4.8 29.5
City: HOT SPRINGS
State: MT
ID: USC00244297
Lat: 47.6000
Long: -114.6833
County: Sanders
Elev: 2900 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.5 39.3 49.2 58.3 67.1 74.6 85.5 85.1 74.1 59.0 43.2 32.7 58.7
Mean 27.2 30.4 37.5 45.2 53.5 60.2 68.3 67.6 58.0 45.7 34.2 25.5 46.2
Minimum 20.0 21.6 25.9 32.1 39.8 45.8 51.1 50.1 41.9 32.5 25.1 18.4 33.7
CDD 0 0 0 <0.5 6 27 139 126 24 <0.5 0 0 322
HDD 1170 967 851 594 364 171 37 45 234 597 926 1223 7180
City: HUNGRY HORSE DAM
State: MT
ID: USC00244328
Lat: 48.3425
Long: -114.0217
County: Flathead
Elev: 3160 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.2 34.8 43.7 54.0 64.5 72.0 81.9 81.2 68.0 52.2 37.9 30.0 54.4
Mean 25.0 27.2 34.5 43.3 52.4 59.5 67.0 66.0 55.5 43.2 32.1 24.4 44.3
Minimum 18.9 19.6 25.4 32.5 40.2 47.0 52.0 50.9 42.9 34.2 26.4 18.9 34.1
CDD 0 0 0 <0.5 6 31 123 104 11 <0.5 0 0 275
HDD 1238 1058 944 653 398 196 62 72 298 676 985 1257 7837
Precip 3.23 2.25 2.65 2.43 2.94 3.54 1.81 1.43 2.49 2.83 3.92 3.42 32.94
City: HUNTLEY EXP STN
State: MT
ID: USC00244345
Lat: 45.9228
Long: -108.2444
County: Yellowstone
Elev: 3034 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.6 41.7 50.9 60.6 69.4 78.3 87.3 86.7 75.0 61.9 47.5 36.5 61.1
Mean 24.0 28.2 36.7 45.9 54.9 63.5 70.4 69.1 58.3 46.3 33.8 23.7 46.3
Minimum 11.4 14.8 22.5 31.3 40.4 48.7 53.6 51.5 41.5 30.6 20.0 11.0 31.5
CDD 0 0 0 1 11 68 192 161 31 1 0 0 465
HDD 1271 1029 877 572 324 113 24 34 233 582 938 1279 7276
Precip 0.44 0.43 0.96 1.53 2.34 2.05 1.68 0.77 1.32 1.15 0.59 0.50 13.76
Snow 6.1 5.4 7.9 2.3 0.6 0.0 0.0 0.0 0.7 1.7 5.3 7.0 37.0
City: HYSHAM 25 SSE
State: MT
ID: USC00244364
Lat: 45.9353
Long: -107.1375
County: Treasure
Elev: 3100 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.0 38.8 48.3 58.5 67.9 77.7 88.4 88.1 75.2 60.8 45.9 35.4 60.1
Mean 21.8 25.6 35.0 44.2 53.4 62.5 70.5 69.5 57.9 45.0 32.3 21.9 45.1
Minimum 8.6 12.5 21.6 29.8 38.9 47.3 52.6 50.8 40.5 29.2 18.6 8.5 30.0
CDD 0 0 0 <0.5 8 64 200 180 33 1 0 0 487
HDD 1339 1102 932 626 368 139 30 43 248 621 982 1334 7763
Precip 0.52 0.50 1.00 1.40 2.11 2.39 1.56 0.77 1.31 1.26 0.68 0.50 14.00
Snow 10.0 7.0 9.2 5.3 1.8 0.0 0.0 0.0 0.9 2.6 6.7 9.1 52.6
City: HYSHAM
State: MT
ID: USC00244358
Lat: 46.2942
Long: -107.2278
County: Treasure
Elev: 2660 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.1 39.7 50.2 61.3 70.2 78.9 87.4 86.2 74.6 61.1 45.8 34.6 60.5
Mean 23.3 27.3 36.8 46.7 56.0 64.6 71.6 70.0 59.1 47.0 33.9 23.3 46.7
Minimum 11.5 14.9 23.4 32.2 41.7 50.4 55.9 53.9 43.7 32.8 21.9 11.9 32.9
CDD 0 0 0 1 12 77 220 180 31 <0.5 0 0 522
HDD 1293 1055 874 548 293 88 14 24 206 560 934 1294 7184
Precip 0.40 0.43 0.88 1.43 2.45 2.08 1.46 0.92 1.34 1.17 0.59 0.46 13.61
Snow 7.1 4.9 6.7 3.2 1.0 0.0 0.0 0.0 0.2 1.8 5.0 7.0 36.9
City: ILIAD
State: MT
ID: USC00244368
Lat: 47.8056
Long: -109.8100
County: Chouteau
Elev: 2965 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.6 36.9 46.6 58.4 68.4 76.3 84.8 84.7 72.3 58.3 44.5 31.7 58.0
Mean 20.0 25.3 34.9 44.9 54.7 62.6 69.3 68.4 57.4 44.8 32.1 20.4 44.7
Minimum 8.4 13.7 23.2 31.5 41.0 48.8 53.9 52.2 42.4 31.3 19.6 9.1 31.3
CDD 0 0 <0.5 1 13 56 165 153 28 <0.5 0 0 417
HDD 1395 1111 933 602 332 130 30 47 258 627 988 1382 7836
City: INGOMAR 14 NE
State: MT
ID: USC00244386
Lat: 46.7392
Long: -107.2078
County: Rosebud
Elev: 2795 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.5 37.6 48.1 59.4 69.0 78.0 87.7 87.2 74.8 60.3 44.4 32.7 59.4
Mean 20.0 25.0 35.3 45.6 55.4 64.4 72.4 71.0 59.1 46.0 31.7 20.3 45.6
Minimum 7.4 12.3 22.4 31.8 41.8 50.8 57.1 54.8 43.4 31.6 19.0 7.8 31.8
CDD 0 0 <0.5 1 11 80 243 211 37 1 0 0 584
HDD 1397 1121 922 583 309 98 13 26 214 591 999 1387 7660
Precip 0.42 0.33 0.63 1.24 2.24 2.15 1.55 0.87 1.20 0.90 0.50 0.39 12.42
Snow 7.5 4.4 5.7 2.4 1.8 0.0 0.0 0.0 0.5 1.4 4.6 6.5 34.8
City: JACKSON
State: MT
ID: USC00244447
Lat: 45.3681
Long: -113.4089
County: Beaverhead
Elev: 6480 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.7 31.3 39.7 47.7 57.5 66.0 75.7 75.3 65.3 51.7 36.3 27.1 50.3
Mean 18.2 19.8 28.0 35.0 44.1 51.4 58.3 57.3 48.5 38.0 25.5 16.6 36.8
Minimum 7.8 8.2 16.2 22.3 30.6 36.7 41.0 39.3 31.8 24.4 14.8 6.2 23.4
CDD 0 0 0 0 <0.5 1 7 4 <0.5 0 0 0 11
HDD 1449 1267 1149 900 650 410 213 242 494 835 1183 1499 10291
Precip 0.64 0.44 0.74 1.06 1.58 1.90 1.06 1.09 0.89 0.91 0.92 0.56 11.79
City: JOLIET
State: MT
ID: USC00244506
Lat: 45.4731
Long: -109.0097
County: Carbon
Elev: 3848 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.7 40.7 50.1 58.4 67.8 77.3 86.6 85.4 73.6 60.2 45.5 35.7 59.9
Mean 24.9 28.0 36.5 44.1 53.6 62.6 70.0 68.3 57.6 45.8 33.5 24.6 45.9
Minimum 13.1 15.3 22.9 29.9 39.4 47.8 53.5 51.1 41.5 31.4 21.6 13.5 31.8
CDD 0 0 0 <0.5 6 53 178 140 23 <0.5 0 0 399
HDD 1243 1036 883 626 360 126 21 39 246 595 943 1252 7371
Precip 0.52 0.57 1.05 1.92 2.64 1.91 0.97 0.78 1.15 1.49 0.65 0.55 14.20
Snow 7.3 7.0 9.3 5.8 1.2 0.0 0.0 0.0 1.0 4.7 5.9 8.5 50.7
City: JOPLIN
State: MT
ID: USC00244512
Lat: 48.5597
Long: -110.7700
County: Liberty
Elev: 3325 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.7 34.5 44.1 56.4 66.4 74.0 82.9 82.2 70.4 57.4 40.5 30.3 55.9
Mean 19.8 23.3 32.4 43.1 52.9 60.5 67.6 66.6 55.7 44.1 29.9 19.9 43.1
Minimum 8.9 12.0 20.8 29.8 39.4 46.9 52.2 51.0 41.0 30.8 19.3 9.5 30.2
CDD 0 0 0 <0.5 8 35 126 115 19 <0.5 0 0 304
HDD 1401 1169 1009 657 383 172 47 66 298 648 1053 1398 8301
Precip 0.25 0.21 0.43 0.64 1.68 2.31 1.30 1.27 1.08 0.51 0.37 0.28 10.33
Snow 4.8 2.8 2.4 1.8 0.6 0.1 0.0 0.0 0.0 0.8 1.4 4.9 19.6
City: JORDAN 23 ENE
State: MT
ID: USC00244530
Lat: 47.4819
Long: -106.4681
County: Garfield
Elev: 2385 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.3 35.7 47.3 59.3 69.4 78.5 87.6 86.5 74.6 60.9 44.7 32.5 59.2
Mean 17.7 22.9 33.8 45.0 54.7 63.7 71.6 69.7 57.4 45.3 30.9 19.4 44.4
Minimum 4.0 10.1 20.3 30.8 39.9 49.0 55.6 52.8 40.1 29.7 17.1 6.2 29.7
CDD 0 0 0 <0.5 7 72 224 183 22 <0.5 0 0 509
HDD 1468 1179 967 599 328 109 19 39 252 611 1023 1415 8009
Precip 0.34 0.21 0.46 1.32 1.94 2.14 2.01 1.34 1.00 1.04 0.40 0.23 12.43
City: JORDAN AP
State: MT
ID: USW00094051
Lat: 47.3258
Long: -106.9475
County: Garfield
Elev: 2662 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.0 34.8 45.7 57.8 66.7 76.8 85.6 85.4 73.2 58.9 43.6 31.5 57.5
Mean 17.2 22.6 33.2 44.0 52.7 62.5 69.9 68.9 57.2 44.2 30.1 18.8 43.6
Minimum 5.5 10.3 20.8 30.1 38.7 48.1 54.2 52.5 41.2 29.4 16.7 6.1 29.6
CDD 0 0 0 <0.5 6 48 177 162 27 1 0 0 420
HDD 1480 1188 984 632 387 125 25 40 261 647 1045 1432 8246
Precip 0.23 0.25 0.52 1.08 2.29 2.49 1.87 1.19 1.21 0.89 0.36 0.29 12.67
City: JORDAN
State: MT
ID: USC00244522
Lat: 47.3144
Long: -106.9103
County: Garfield
Elev: 2620 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.4 34.5 46.4 58.6 68.0 77.8 87.2 86.7 74.0 59.8 43.0 30.9 58.1
Mean 16.7 21.7 33.0 44.3 54.0 63.8 71.2 69.8 57.2 44.6 29.9 18.4 43.8
Minimum 4.1 8.9 19.6 29.9 40.0 49.8 55.2 52.9 40.4 29.4 16.9 5.9 29.5
CDD 0 0 0 <0.5 11 78 212 187 28 <0.5 0 0 518
HDD 1496 1212 992 623 352 115 20 39 262 633 1051 1444 8239
Precip 0.50 0.33 0.56 1.27 2.22 2.20 1.71 1.20 1.12 0.89 0.42 0.41 12.83
City: JUDITH GAP 13 E
State: MT
ID: USC00244545
Lat: 46.6500
Long: -109.4800
County: Wheatland
Elev: 5203 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.8 37.8 44.3 53.4 61.8 69.7 78.3 78.4 67.9 56.4 42.6 34.5 55.2
Mean 24.2 26.0 32.2 40.1 48.5 56.2 63.3 63.0 53.4 43.0 31.0 23.2 42.1
Minimum 12.7 14.2 20.1 26.8 35.1 42.7 48.3 47.7 38.8 29.7 19.4 12.0 29.0
CDD 0 0 0 0 <0.5 11 55 52 8 <0.5 0 0 126
HDD 1263 1092 1017 747 514 275 108 113 357 681 1020 1294 8480
Precip 0.49 0.56 1.04 1.26 2.44 2.75 2.15 1.64 1.14 0.83 0.46 0.65 15.41
City: JUDITH GAP
State: MT
ID: USC00244538
Lat: 46.6764
Long: -109.7525
County: Wheatland
Elev: 4690 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.34 0.29 0.70 1.51 2.65 2.91 2.05 1.55 1.22 0.78 0.36 0.33 14.69
City: KALISPELL 9 NNE
State: MT
ID: USC00244560
Lat: 48.3094
Long: -114.2522
County: Flathead
Elev: 2965 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.2 36.9 45.9 56.0 65.2 71.7 80.4 81.4 70.3 56.8 41.8 31.1 55.9
Mean 24.5 28.2 36.0 44.1 52.5 59.1 65.1 64.9 55.2 43.9 33.3 24.3 44.3
Minimum 16.8 19.5 26.0 32.1 39.7 46.4 49.7 48.4 40.0 31.0 24.8 17.4 32.7
CDD 0 0 0 <0.5 3 16 75 79 8 0 0 0 180
HDD 1255 1030 900 628 392 194 74 82 303 654 951 1263 7728
Precip 1.42 0.92 1.07 1.20 2.06 2.66 1.50 1.14 1.38 1.10 1.22 1.47 17.14
City: KALISPELL GLACIER AP
State: MT
ID: USC00244558
Lat: 48.3042
Long: -114.2636
County: Flathead
Elev: 2957 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.2 36.0 45.6 56.1 65.1 72.0 81.4 81.4 69.9 54.9 39.6 29.7 55.3
Mean 23.8 27.1 35.4 43.6 51.8 58.3 64.7 63.9 54.2 42.1 31.8 22.7 43.4
Minimum 16.4 18.2 25.1 31.2 38.5 44.5 48.0 46.5 38.4 29.4 24.0 15.8 31.4
CDD 0 0 0 <0.5 3 13 67 60 4 0 0 0 148
HDD 1277 1061 919 640 412 216 77 93 330 708 996 1310 8040
Precip 1.33 0.97 1.09 1.24 1.98 2.56 1.45 0.99 1.38 1.01 1.43 1.56 16.99
Snow 12.7 7.9 5.7 2.2 0.2 0.3 0.0 0.0 0.0 1.1 9.3 16.3 55.7
City: KNOBS 4 SW
State: MT
ID: USC00244715
Lat: 45.8728
Long: -104.1583
County: Carter
Elev: 3086 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.38 0.37 0.88 1.57 2.43 2.99 1.97 1.49 1.18 1.32 0.68 0.44 15.70
Snow 5.1 4.0 5.1 4.5 1.5 0.0 0.0 0.0 0.4 2.0 2.6 3.4 28.6
City: LAKEVIEW
State: MT
ID: USC00244820
Lat: 44.5994
Long: -111.8125
County: Beaverhead
Elev: 6710 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 24.4 27.1 36.5 46.9 58.5 67.1 77.0 76.0 67.6 52.2 35.1 23.7 49.5
Mean 13.1 15.4 24.3 34.7 44.6 51.7 59.4 57.9 50.1 37.8 24.2 13.1 35.6
Minimum 1.8 3.6 12.1 22.5 30.6 36.3 41.8 39.8 32.6 23.4 13.4 2.5 21.8
CDD 0 0 0 0 <0.5 1 9 4 1 <0.5 0 0 14
HDD 1609 1390 1262 909 634 400 183 224 448 843 1222 1609 10732
Precip 0.99 0.86 1.26 2.05 2.40 2.40 1.59 1.15 1.33 1.61 1.30 1.09 18.03
City: LAME DEER
State: MT
ID: USC00244839
Lat: 45.6258
Long: -106.6642
County: Rosebud
Elev: 3300 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.8 40.5 49.8 60.3 69.8 79.3 90.2 89.6 77.5 62.5 45.5 36.4 61.6
Mean 21.9 24.4 35.1 43.1 52.3 60.9 69.6 67.3 56.8 43.8 30.9 21.2 44.0
Minimum 7.1 8.3 20.4 25.9 34.8 42.5 49.0 45.1 36.1 25.1 16.2 6.0 26.5
CDD 0 0 0 <0.5 4 34 172 125 22 <0.5 0 0 357
HDD 1334 1136 927 657 398 157 30 52 268 657 1024 1358 7999
City: LAUREL 3 WSW
State: MT
ID: USC00244894
Lat: 45.6667
Long: -108.8167
County: Yellowstone
Elev: 3319 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.44 0.48 0.95 1.72 2.26 2.25 1.47 0.91 1.23 1.33 0.59 0.49 14.12
City: LAURIN 2NE
State: MT
ID: USC00244896
Lat: 45.3681
Long: -112.0967
County: Madison
Elev: 5198 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.9 37.0 46.7 54.0 63.4 72.3 79.5 79.3 68.6 56.1 42.5 32.1 55.5
Mean 24.0 25.8 35.0 41.8 50.0 57.8 64.3 63.2 54.6 43.4 31.7 22.7 42.9
Minimum 14.1 14.6 23.2 29.5 36.6 43.3 49.1 47.0 40.5 30.8 20.9 13.3 30.3
CDD 0 0 0 0 0 2 31 30 7 0 0 0 71
HDD 1272 1097 932 697 465 218 54 88 321 668 999 1310 8121
City: LENNEP 5 SW
State: MT
ID: USC00244954
Lat: 46.3619
Long: -110.6003
County: Meagher
Elev: 5600 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.5 33.8 40.9 49.2 59.0 67.7 77.4 77.2 66.0 52.9 38.5 30.2 52.1
Mean 21.7 22.8 29.3 36.6 45.6 53.5 60.5 59.7 50.3 39.5 28.2 20.6 39.1
Minimum 11.8 11.8 17.7 24.1 32.2 39.3 43.7 42.2 34.5 26.1 18.0 11.0 26.1
CDD 0 0 0 0 <0.5 3 22 15 1 <0.5 0 0 41
HDD 1344 1182 1107 850 602 348 160 179 443 791 1102 1376 9484
Precip 0.82 0.64 1.05 1.56 2.61 2.79 1.75 1.42 1.24 1.23 0.90 0.79 16.80
Snow 17.9 12.1 15.5 11.8 2.3 0.2 0.0 0.0 0.3 6.4 11.9 12.1 90.5
City: LEWISTOWN 11 SSE
State: MT
ID: USC00244978
Lat: 46.9056
Long: -109.4114
County: Fergus
Elev: 4965 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.86 0.72 1.49 2.17 3.71 3.87 2.58 2.36 2.06 1.63 0.98 1.09 23.52
Snow 19.5 15.4 25.4 17.4 4.0 0.3 0.0 0.0 2.3 7.6 10.6 21.0 123.5
City: LEWISTOWN 42 WSW
State: MT
ID: USW00004140
Lat: 46.8847
Long: -110.2894
County: Judith Basin
Elev: 5070 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.3 37.6 44.2 51.1 59.8 69.2 77.8 77.5 67.9 55.3 43.5 35.9 54.9
Mean 25.1 25.8 32.2 38.9 46.7 55.0 61.6 61.1 52.4 42.0 32.4 24.6 41.5
Minimum 12.8 14.0 20.1 26.6 33.5 40.8 45.4 44.7 36.8 28.6 21.2 13.2 28.2
CDD 0 0 0 0 0 <0.5 12 15 6 2 0 0 35
HDD 1239 1098 1018 785 569 300 117 137 386 717 980 1254 8598
City: LEWISTOWN AP
State: MT
ID: USW00024036
Lat: 47.0492
Long: -109.4578
County: Fergus
Elev: 4145 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.2 36.5 43.9 53.6 62.5 71.0 80.6 80.6 69.0 56.6 43.1 34.0 55.6
Mean 23.6 25.7 32.9 41.4 50.0 58.1 65.5 65.1 54.9 43.7 32.0 23.3 43.1
Minimum 13.0 15.0 21.9 29.2 37.5 45.2 50.4 49.5 40.7 30.8 20.9 12.5 30.6
CDD 0 0 0 <0.5 2 20 88 86 14 <0.5 0 0 210
HDD 1283 1099 995 708 467 227 73 85 319 661 990 1294 8199
Precip 0.57 0.44 0.99 1.41 2.85 3.08 1.93 1.73 1.35 1.13 0.71 0.66 16.85
Snow 9.8 5.3 12.0 8.1 4.8 0.1 0.0 0.0 1.6 3.9 7.5 9.7 62.8
City: LIBBY 1 NE RS
State: MT
ID: USC00245015
Lat: 48.4036
Long: -115.5392
County: Lincoln
Elev: 2096 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.5 40.7 51.7 61.7 71.6 78.9 87.5 87.6 76.0 58.1 40.4 31.7 60.1
Mean 27.4 31.5 39.3 46.8 55.0 62.0 68.0 67.4 58.1 45.8 34.5 26.4 46.9
Minimum 21.3 22.3 27.0 31.9 38.5 45.0 48.6 47.2 40.1 33.5 28.5 21.1 33.8
CDD 0 0 0 <0.5 9 41 132 118 17 <0.5 0 0 318
HDD 1166 938 795 546 317 133 38 44 226 595 917 1197 6910
Precip 1.78 1.25 1.43 1.09 1.62 1.83 1.21 0.89 1.18 1.49 2.43 2.20 18.40
Snow 10.2 6.8 3.1 0.3 0.0 0.0 0.0 0.0 0.0 0.6 5.9 18.5 45.4
City: LIBBY 32 SSE
State: MT
ID: USC00245020
Lat: 47.9733
Long: -115.2239
County: Lincoln
Elev: 3465 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.1 36.9 44.9 55.0 63.9 70.7 79.1 79.3 68.8 54.3 38.3 29.2 54.5
Mean 23.1 25.7 33.3 41.0 48.5 54.6 59.7 58.9 50.5 40.1 29.7 21.0 40.6
Minimum 14.2 14.6 21.6 27.0 33.0 38.4 40.4 38.6 32.2 25.9 21.2 12.7 26.7
CDD 0 0 0 0 <0.5 2 15 9 <0.5 0 0 0 26
HDD 1297 1099 984 720 513 315 178 197 435 772 1058 1365 8934
Precip 2.24 1.77 1.81 1.57 2.18 2.05 1.09 1.02 1.21 2.03 3.08 2.57 22.62
Snow 17.3 12.5 12.1 4.8 0.7 0.2 0.0 0.0 0.1 2.7 15.3 22.7 88.4
City: LIBBY DAM BASE
State: MT
ID: USC00245011
Lat: 48.4100
Long: -115.3181
County: Lincoln
Elev: 2110 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.4 39.7 48.9 58.3 67.9 75.3 84.2 84.0 72.8 57.7 42.0 33.1 58.3
Mean 27.8 30.5 37.6 44.9 53.4 60.4 67.0 66.4 56.9 45.4 34.7 26.8 46.1
Minimum 21.1 21.4 26.3 31.5 38.9 45.5 49.8 48.7 41.1 33.0 27.3 20.5 33.8
CDD 0 0 0 <0.5 4 27 109 99 11 0 0 0 250
HDD 1155 965 849 603 363 165 47 57 252 609 910 1184 7161
Precip 1.36 1.07 1.08 1.20 1.79 2.30 1.14 0.93 1.20 1.48 1.95 1.59 17.09
City: LIBBY
State: MT
ID: USC00245000
Lat: 48.3806
Long: -115.5578
County: Lincoln
Elev: 2140 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.4 37.2 48.1 58.4 68.3 75.6 83.6 84.0 71.2 54.4 37.3 30.7 56.9
Mean 26.6 29.1 37.3 45.0 53.4 60.5 66.4 65.7 55.4 43.0 32.2 25.3 45.1
Minimum 20.7 21.1 26.4 31.5 38.6 45.4 49.2 47.4 39.6 31.6 27.2 19.9 33.3
CDD 0 0 0 0 2 17 88 77 5 0 0 0 189
HDD 1192 1004 860 601 360 152 44 55 293 682 983 1230 7457
City: LIMA
State: MT
ID: USC00245030
Lat: 44.6331
Long: -112.5928
County: Beaverhead
Elev: 6279 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.7 32.7 42.3 51.9 61.1 70.0 80.1 79.1 69.3 55.1 38.3 27.5 53.1
Mean 18.5 21.1 30.3 38.2 46.7 54.4 62.2 60.9 52.1 40.7 27.2 17.3 39.2
Minimum 8.2 9.5 18.2 24.5 32.2 38.8 44.3 42.8 34.9 26.2 16.2 7.1 25.3
CDD 0 0 0 0 <0.5 4 33 17 1 0 0 0 55
HDD 1443 1229 1077 804 569 322 120 143 388 755 1132 1479 9461
Precip 0.30 0.29 0.57 1.11 1.83 2.08 1.24 1.17 0.88 0.96 0.45 0.38 11.26
Snow 6.5 6.4 9.3 10.0 6.0 0.9 0.0 0.0 1.5 6.4 5.5 6.3 58.8
City: LINCOLN RS
State: MT
ID: USC00245040
Lat: 46.9558
Long: -112.6547
County: Lewis and Clark
Elev: 4575 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.1 36.9 45.3 54.6 63.6 72.0 81.5 81.5 70.6 56.4 39.5 30.7 55.6
Mean 23.1 25.9 33.6 40.9 48.6 56.0 62.5 61.5 52.4 42.1 29.8 21.3 41.6
Minimum 13.1 15.0 21.8 27.3 33.6 40.0 43.6 41.5 34.2 27.8 20.2 12.0 27.6
CDD 0 0 0 0 1 8 40 27 2 <0.5 0 0 79
HDD 1299 1093 975 721 509 278 116 135 380 710 1054 1353 8626
Precip 1.61 1.62 1.19 1.33 1.96 2.27 1.11 1.47 1.29 1.29 1.45 1.47 18.06
Snow 15.1 10.0 7.4 3.2 1.1 1.2 0.0 0.0 0.5 2.1 9.5 16.5 66.6
City: LINDBERGH LAKE
State: MT
ID: USC00245043
Lat: 47.4083
Long: -113.7125
County: Missoula
Elev: 4320 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.4 34.7 42.2 50.8 60.5 68.1 77.5 77.3 66.8 52.2 36.8 28.2 52.2
Mean 23.2 25.8 32.9 40.2 49.0 56.2 63.6 62.9 53.7 42.2 30.2 21.6 41.9
Minimum 16.0 17.0 23.6 29.6 37.4 44.3 49.7 48.4 40.5 32.3 23.7 15.0 31.5
CDD 0 0 0 0 1 9 57 45 5 0 0 0 116
HDD 1296 1096 995 744 499 273 100 111 346 705 1042 1345 8552
Precip 2.63 1.99 1.82 1.79 2.24 2.49 1.18 1.30 1.61 1.96 2.88 2.41 24.30
Snow 31.7 20.9 18.5 8.5 2.2 0.4 0.0 0.0 0.0 4.3 21.3 27.7 135.5
City: LINDSAY
State: MT
ID: USC00245045
Lat: 47.2253
Long: -105.1522
County: Dawson
Elev: 2690 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.38 0.44 0.57 1.29 2.41 2.25 1.99 1.12 1.36 1.04 0.47 0.55 13.87
City: LIVINGSTON 12 S
State: MT
ID: USC00245080
Lat: 45.4836
Long: -110.5689
County: Park
Elev: 4870 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.8 39.2 47.6 56.3 65.0 72.6 81.8 81.2 70.7 57.9 43.8 34.4 57.3
Mean 27.0 29.3 36.4 43.6 51.5 58.4 65.9 64.8 55.8 45.5 34.5 25.9 45.0
Minimum 18.2 19.5 25.3 31.0 38.0 44.3 50.0 48.4 41.0 33.2 25.2 17.3 32.7
CDD 0 0 <0.5 <0.5 2 15 86 65 12 <0.5 0 0 180
HDD 1178 998 885 641 421 211 58 71 287 603 915 1213 7481
Precip 0.56 0.50 0.98 1.51 2.52 2.82 1.72 1.38 1.49 1.37 0.78 0.54 16.17
Snow 8.6 7.3 10.8 9.2 3.2 0.0 0.0 0.0 0.9 3.8 8.3 9.5 61.6
City: LIVINGSTON AP
State: MT
ID: USW00024150
Lat: 45.6983
Long: -110.4408
County: Park
Elev: 4643 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.9 39.8 47.5 55.0 64.6 73.4 84.6 84.0 72.1 58.5 44.0 35.5 58.1
Mean 27.0 29.1 35.6 42.1 50.6 58.7 66.9 65.6 55.8 45.1 34.0 26.1 44.8
Minimum 17.2 18.3 23.7 29.1 36.6 44.0 49.2 47.2 39.4 31.6 23.9 16.7 31.5
CDD 0 0 0 <0.5 1 19 109 86 14 1 0 0 229
HDD 1176 1007 911 689 448 207 50 68 291 619 931 1206 7603
Precip 0.49 0.50 0.84 1.77 2.66 2.39 1.47 1.11 1.21 1.26 0.59 0.52 14.81
City: LOGAN LANDFILL
State: MT
ID: USC00245123
Lat: 45.8814
Long: -111.4164
County: Gallatin
Elev: 4243 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.6 37.5 47.4 56.2 65.7 73.7 82.4 83.2 71.9 58.7 43.1 31.2 57.3
Mean 22.6 25.5 33.3 42.8 51.0 58.9 65.9 65.1 55.2 44.4 30.0 19.9 43.0
Minimum 9.5 13.5 19.1 29.4 36.3 44.0 49.4 47.0 38.5 30.0 16.9 8.6 28.6
CDD 0 0 0 0 <0.5 7 66 69 13 0 0 0 155
HDD 1317 1106 984 666 434 191 39 67 307 641 1050 1396 8197
City: LOMA 1 WNW
State: MT
ID: USC00245153
Lat: 47.9442
Long: -110.5308
County: Chouteau
Elev: 2580 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.9 39.6 49.1 60.2 69.3 77.7 86.9 85.8 73.9 61.0 45.8 34.9 60.0
Mean 21.6 25.6 35.2 45.6 54.8 63.2 70.2 68.7 57.6 45.7 32.3 21.7 45.3
Minimum 8.3 11.7 21.3 31.0 40.3 48.6 53.5 51.7 41.4 30.4 18.8 8.5 30.6
CDD 0 0 0 1 11 57 184 159 22 <0.5 0 0 434
HDD 1345 1102 924 582 328 112 23 43 243 599 981 1342 7624
Precip 0.44 0.28 0.68 1.08 2.14 2.29 1.34 1.32 1.22 0.78 0.48 0.39 12.44
Snow 8.4 5.3 5.7 2.6 1.2 0.0 0.0 0.0 0.1 1.6 5.6 8.0 38.5
City: LUSTRE 4 NNW
State: MT
ID: USC00245285
Lat: 48.4500
Long: -105.9333
County: Valley
Elev: 2923 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.0 27.1 39.3 54.9 65.8 73.4 80.7 81.0 68.9 54.5 37.5 24.6 52.7
Mean 14.0 18.0 29.6 42.5 53.2 61.3 67.6 67.5 56.1 43.3 28.3 15.9 41.6
Minimum 5.0 8.8 19.8 30.2 40.6 49.3 54.6 54.0 43.4 32.1 19.2 7.3 30.4
CDD 0 0 0 <0.5 11 50 130 138 30 1 0 0 360
HDD 1581 1317 1099 674 377 160 48 61 295 674 1099 1520 8905
Precip 0.37 0.36 0.56 0.96 2.32 3.19 2.30 1.49 1.00 0.66 0.41 0.40 14.02
City: MAC KENZIE
State: MT
ID: USC00245303
Lat: 46.1422
Long: -104.7353
County: Fallon
Elev: 2810 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.46 0.31 0.66 1.41 2.28 2.67 1.71 1.04 1.27 1.18 0.56 0.46 14.01
City: MALMSTROM AFB
State: MT
ID: USW00024112
Lat: 47.5167
Long: -111.1833
County: Cascade
Elev: 3465 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.4 40.7 49.2 59.3 68.5 77.0 87.4 86.0 74.1 61.3 46.5 37.7 60.6
Mean 28.1 29.1 36.9 46.6 55.9 63.7 72.0 70.4 60.1 48.6 36.1 27.5 48.0
Minimum 17.7 17.5 24.6 33.9 43.2 50.4 56.5 54.7 46.0 35.8 25.7 17.2 35.4
CDD 0 0 0 2 15 60 233 191 56 1 0 0 557
HDD 1146 1005 871 554 299 99 18 25 204 511 867 1163 6762
City: MALTA 35 S
State: MT
ID: USC00245340
Lat: 47.8417
Long: -107.9556
County: Phillips
Elev: 2605 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.9 35.6 46.4 59.8 68.5 77.8 87.3 87.1 74.5 60.3 43.8 32.7 58.8
Mean 18.2 22.5 33.3 45.2 54.5 63.9 71.2 70.2 58.0 45.2 30.7 20.0 44.5
Minimum 5.6 9.5 20.2 30.7 40.6 50.0 55.1 53.4 41.5 30.0 17.6 7.4 30.2
CDD 0 0 <0.5 1 11 75 213 198 33 1 0 0 531
HDD 1449 1189 983 593 335 108 21 35 243 616 1029 1393 7994
Precip 0.30 0.24 0.59 1.02 2.39 2.22 1.76 1.20 1.10 0.74 0.34 0.28 12.18
Snow 6.4 4.3 4.3 2.3 1.1 0.0 0.0 0.0 0.0 1.3 3.5 6.1 29.3
City: MALTA 7 E
State: MT
ID: USC00245338
Lat: 48.3939
Long: -107.7286
County: Phillips
Elev: 2231 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 25.3 31.6 44.9 59.6 69.0 77.7 85.7 84.9 72.7 59.4 40.9 27.7 56.7
Mean 14.1 19.7 32.5 45.8 55.7 64.7 71.0 69.2 57.3 45.1 28.9 16.6 43.5
Minimum 3.0 7.9 20.2 31.9 42.3 51.6 56.3 53.6 42.0 30.8 17.0 5.5 30.3
CDD 0 0 0 1 17 84 207 175 25 <0.5 0 0 510
HDD 1576 1267 1006 579 307 95 22 44 254 617 1081 1500 8348
Precip 0.37 0.24 0.51 0.86 2.20 2.71 1.40 1.09 1.27 0.81 0.42 0.27 12.15
City: MALTA
State: MT
ID: USC00245334
Lat: 48.3589
Long: -107.8714
County: Phillips
Elev: 2262 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.0 33.8 45.9 60.9 69.4 77.7 86.1 86.1 74.0 60.4 42.8 30.3 58.1
Mean 17.0 23.1 33.9 47.1 56.3 64.8 72.0 70.9 59.3 46.6 31.6 19.3 45.3
Minimum 6.0 12.3 21.9 33.4 43.2 52.0 58.0 55.7 44.5 32.7 20.5 8.2 32.5
CDD 0 0 0 1 15 79 230 209 38 2 <0.5 0 573
HDD 1488 1175 964 536 284 83 12 27 210 574 1000 1418 7771
Precip 0.40 0.29 0.51 1.08 2.19 2.72 1.67 1.14 1.33 0.76 0.46 0.46 13.01
City: MARTINSDALE 3 NNW
State: MT
ID: USC00245387
Lat: 46.5000
Long: -110.3378
County: Meagher
Elev: 4800 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.4 39.8 47.0 56.2 65.0 72.6 81.8 81.5 71.1 58.8 43.7 35.5 57.6
Mean 26.5 27.9 34.4 41.9 50.1 57.5 64.4 63.2 54.3 44.4 32.7 25.1 43.6
Minimum 15.6 16.0 21.7 27.6 35.1 42.4 47.1 44.9 37.5 29.9 21.7 14.7 29.6
CDD 0 0 0 <0.5 1 12 61 41 4 <0.5 0 0 119
HDD 1194 1039 950 693 464 237 79 97 325 640 969 1237 7923
Precip 0.42 0.32 0.69 1.37 2.13 2.31 1.72 1.30 1.09 0.76 0.64 0.45 13.20
Snow 7.4 6.0 10.0 7.0 1.4 0.0 0.0 0.0 0.8 3.4 5.8 6.9 48.7
City: MCLEOD
State: MT
ID: USC00245533
Lat: 45.6628
Long: -110.1147
County: Sweet Grass
Elev: 4809 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.53 0.68 1.36 2.12 3.25 2.57 1.92 1.14 1.28 1.73 0.72 0.59 17.89
Snow 9.0 14.0 16.1 10.2 2.9 0.0 0.0 0.0 0.7 7.8 9.9 12.1 82.7
City: MEDICINE LAKE 3 SE
State: MT
ID: USC00245572
Lat: 48.4828
Long: -104.4514
County: Sheridan
Elev: 1942 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 22.6 28.5 40.7 57.0 67.5 76.5 83.9 83.5 72.1 57.3 38.7 25.9 54.6
Mean 10.3 16.2 28.4 43.0 54.3 63.3 69.4 68.1 56.4 43.1 26.7 13.9 41.2
Minimum -1.9 3.8 16.0 29.0 41.0 50.1 54.8 52.7 40.8 29.0 14.7 2.0 27.8
CDD 0 0 0 1 14 71 165 148 23 1 0 0 423
HDD 1694 1368 1136 661 347 122 31 52 279 678 1149 1582 9099
Precip 0.36 0.17 0.48 0.85 2.07 2.56 2.39 1.35 1.03 0.79 0.42 0.36 12.83
City: MELSTONE
State: MT
ID: USC00245596
Lat: 46.6008
Long: -107.8689
County: Musselshell
Elev: 2920 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.8 40.9 50.5 61.0 70.5 79.6 89.1 88.5 76.3 62.1 46.5 35.5 61.5
Mean 25.6 29.1 37.7 47.1 56.4 65.3 73.0 71.9 60.7 48.3 35.3 24.9 48.0
Minimum 14.4 17.2 24.9 33.2 42.3 51.0 56.8 55.3 45.2 34.6 24.1 14.3 34.5
CDD 0 0 0 1 17 92 259 233 52 2 0 0 657
HDD 1221 1006 846 538 284 83 13 19 180 518 891 1243 6843
Precip 0.47 0.43 0.89 1.55 2.62 2.69 1.60 1.06 1.28 1.17 0.58 0.61 14.95
Snow 7.7 6.3 7.7 4.4 1.6 0.0 0.0 0.0 0.5 2.3 5.9 8.7 45.1
City: MELVILLE 4 W
State: MT
ID: USC00245603
Lat: 46.1047
Long: -110.0500
County: Sweet Grass
Elev: 5365 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.2 37.3 43.3 51.3 60.1 67.6 76.6 76.0 66.4 54.9 41.9 34.7 54.0
Mean 24.7 25.5 31.4 38.9 47.5 54.9 62.2 61.1 52.4 42.1 30.6 23.3 41.3
Minimum 13.2 13.8 19.6 26.5 34.8 42.1 47.7 46.2 38.4 29.3 19.2 11.9 28.6
CDD 0 0 0 0 <0.5 5 36 24 4 <0.5 0 0 69
HDD 1249 1105 1040 783 544 309 125 145 382 710 1033 1293 8718
Precip 0.50 0.49 1.09 2.28 2.99 3.27 2.04 1.36 1.42 1.19 0.69 0.54 17.86
City: MENARD 3 NE
State: MT
ID: USC00245608
Lat: 45.9994
Long: -111.1328
County: Gallatin
Elev: 5053 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.58 0.51 0.92 1.36 2.32 2.39 1.35 1.05 1.10 1.00 0.76 0.70 14.04
Snow 4.6 2.7 3.0 1.2 0.6 0.1 0.0 0.0 0.0 0.2 3.8 5.3 21.5
City: MILDRED 5 N
State: MT
ID: USC00245668
Lat: 46.7614
Long: -104.9619
County: Prairie
Elev: 2484 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.2 33.9 44.8 57.8 67.5 77.4 86.7 86.0 74.0 59.3 42.8 29.8 57.5
Mean 16.5 21.8 32.0 43.4 53.2 63.2 71.0 69.7 57.6 45.0 31.0 18.4 43.7
Minimum 4.8 9.7 19.2 29.0 38.9 48.9 55.2 53.4 41.2 30.8 19.1 6.9 29.9
CDD 0 0 0 <0.5 11 74 210 185 33 1 0 0 514
HDD 1503 1209 1023 648 376 129 26 40 255 619 1021 1446 8297
Precip 0.35 0.22 0.66 1.28 2.32 2.08 1.81 1.04 1.11 1.09 0.37 0.30 12.63
Snow 2.7 2.6 3.9 1.8 0.7 0.0 0.0 0.0 0.2 0.4 1.9 4.8 19.0
City: MILES CITY AP
State: MT
ID: USW00024037
Lat: 46.4267
Long: -105.8825
County: Custer
Elev: 2624 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.0 35.5 46.5 58.8 68.6 78.6 88.3 87.2 74.2 59.2 43.2 30.9 58.5
Mean 19.5 24.4 34.7 46.0 55.9 65.6 73.9 72.6 60.1 46.5 32.0 20.3 46.1
Minimum 8.9 13.2 22.8 33.2 43.1 52.6 59.5 58.0 46.1 33.8 20.9 9.7 33.6
CDD 0 0 <0.5 1 19 107 288 257 56 2 0 0 731
HDD 1412 1138 941 571 303 89 12 22 202 575 988 1385 7639
Precip 0.32 0.23 0.60 1.37 2.18 2.51 1.64 0.91 1.08 0.92 0.39 0.29 12.44
Snow 5.8 3.7 4.3 4.1 1.4 0.0 0.0 0.0 0.3 1.0 4.5 4.4 29.5
City: MILLEGAN 14 SE
State: MT
ID: USC00245712
Lat: 46.8750
Long: -111.1633
County: Meagher
Elev: 4970 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.9 37.1 44.2 52.9 61.9 70.3 79.5 79.2 68.1 55.2 41.2 32.3 54.7
Mean 22.4 24.6 31.8 39.7 48.1 55.8 62.9 61.9 52.3 41.6 29.9 21.2 41.1
Minimum 11.0 12.0 19.4 26.4 34.3 41.2 46.2 44.7 36.4 27.9 18.5 10.1 27.4
CDD 0 0 0 0 <0.5 8 44 32 2 0 0 0 86
HDD 1319 1132 1029 760 524 285 111 127 384 727 1054 1358 8812
Precip 0.90 0.77 1.30 1.52 2.81 3.24 2.08 1.63 1.52 1.16 0.91 0.85 18.69
City: MISSOULA 2 NE
State: MT
ID: USC00245735
Lat: 46.8983
Long: -113.9678
County: Missoula
Elev: 3420 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.9 39.3 48.7 56.9 65.5 73.3 83.6 82.9 71.6 56.6 40.7 31.4 57.1
Mean 26.6 30.5 38.2 45.0 52.8 59.9 67.6 66.8 57.1 45.1 33.2 24.4 45.7
Minimum 19.2 21.7 27.8 33.1 40.0 46.5 51.6 50.8 42.7 33.6 25.7 17.4 34.2
CDD 0 0 0 <0.5 6 32 132 114 18 <0.5 0 0 302
HDD 1192 966 829 600 386 185 52 56 254 617 954 1258 7349
Precip 1.18 0.97 1.28 1.53 2.39 2.49 1.16 1.23 1.39 1.09 1.28 1.33 17.32
Snow 11.5 8.2 7.8 1.6 0.2 0.1 0.0 0.0 0.0 0.8 7.0 13.1 50.3
City: MISSOULA 6 NW WFO
State: MT
ID: USC00245740
Lat: 46.9244
Long: -114.0911
County: Missoula
Elev: 3197 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.8 38.9 49.7 57.5 67.1 74.7 84.5 83.5 72.2 57.6 42.0 31.9 57.9
Mean 25.0 29.5 37.9 44.9 53.4 60.1 67.3 66.0 56.2 43.9 33.0 24.3 45.2
Minimum 16.2 20.1 26.1 32.2 39.7 45.5 50.0 48.4 40.2 30.2 24.0 16.6 32.5
CDD 0 0 0 0 4 22 109 88 9 <0.5 0 0 233
HDD 1240 994 840 604 364 169 40 59 273 654 960 1263 7460
Precip 0.85 0.70 0.96 1.21 2.02 2.14 1.03 1.20 1.15 0.90 1.06 1.02 14.24
City: MISSOULA INTL AP
State: MT
ID: USW00024153
Lat: 46.9208
Long: -114.0925
County: Missoula
Elev: 3192 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.2 38.8 49.8 58.5 67.3 75.2 85.9 84.9 73.1 57.8 41.5 31.0 58.2
Mean 25.8 30.0 38.8 45.7 53.5 60.9 68.6 67.5 57.4 45.1 33.2 23.9 45.9
Minimum 18.3 21.2 27.7 32.8 39.8 46.6 51.4 50.1 41.8 32.4 24.9 16.7 33.7
CDD 0 0 0 <0.5 6 37 151 123 15 <0.5 0 0 331
HDD 1217 980 814 580 361 160 38 46 241 617 954 1276 7283
Precip 0.85 0.70 1.00 1.22 2.01 2.07 0.99 1.19 1.17 0.88 1.01 1.04 14.13
Snow 8.3 6.1 5.1 1.2 0.2 0.0 0.0 0.0 0.0 0.6 5.4 11.0 37.9
City: MIZPAH 4 NNW
State: MT
ID: USC00245754
Lat: 46.2858
Long: -105.2919
County: Custer
Elev: 2480 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.9 37.1 48.6 61.5 71.1 80.6 90.6 90.1 77.5 61.8 44.8 32.6 60.8
Mean 17.7 23.2 34.1 45.3 55.1 64.3 72.1 70.8 58.7 45.0 30.6 18.6 44.7
Minimum 3.4 9.2 19.5 29.1 39.0 48.1 53.6 51.5 39.9 28.2 16.4 4.6 28.6
CDD 0 0 0 1 13 84 238 211 39 <0.5 0 0 587
HDD 1468 1172 959 592 322 104 18 31 228 620 1032 1438 7985
Precip 0.41 0.33 0.78 1.42 2.43 2.24 1.83 1.05 1.27 1.00 0.50 0.38 13.64
Snow 5.4 3.8 5.8 3.3 1.3 0.0 0.0 0.0 0.3 1.5 4.2 4.7 30.3
City: MOCCASIN EXP STN
State: MT
ID: USC00245761
Lat: 47.0575
Long: -109.9514
County: Judith Basin
Elev: 4300 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.1 38.1 44.9 53.5 62.5 70.7 80.9 81.1 69.5 57.5 44.4 36.1 56.4
Mean 25.3 26.7 33.3 41.5 50.4 58.3 66.1 65.9 55.6 44.7 33.0 24.7 43.9
Minimum 13.5 15.3 21.7 29.4 38.2 45.9 51.3 50.8 41.7 32.0 21.7 13.3 31.3
CDD 0 0 0 <0.5 3 22 103 106 23 1 0 0 260
HDD 1231 1072 983 707 457 223 70 77 305 629 958 1249 7961
Precip 0.41 0.36 0.77 1.42 2.64 2.65 1.86 1.90 1.39 1.03 0.50 0.48 15.41
Snow 7.7 6.6 10.0 7.3 3.2 0.0 0.0 0.0 0.6 4.0 5.2 7.3 51.9
City: MONIDA
State: MT
ID: USC00245811
Lat: 44.5667
Long: -112.3167
County: Beaverhead
Elev: 6785 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.80 0.74 0.97 1.02 1.99 1.84 1.32 0.93 0.74 1.39 0.62 1.02 13.38
City: MOORHEAD 9 NE
State: MT
ID: USC00245870
Lat: 45.1758
Long: -105.7517
County: Powder River
Elev: 3220 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.9 40.9 50.6 60.8 69.9 79.6 89.4 88.6 76.9 62.3 46.8 36.2 61.7
Mean 24.4 28.2 37.1 46.4 55.3 64.6 72.4 71.0 60.0 47.5 34.3 23.8 47.2
Minimum 11.9 15.5 23.6 31.9 40.7 49.7 55.3 53.4 43.2 32.7 21.8 11.4 32.7
CDD 0 0 0 1 11 85 240 207 44 1 0 0 588
HDD 1259 1030 865 560 312 95 13 21 192 544 921 1277 7088
Precip 0.31 0.25 0.73 1.39 2.34 2.34 1.54 1.08 1.06 0.98 0.39 0.28 12.69
City: MOSBY 4 ENE
State: MT
ID: USC00245872
Lat: 47.0219
Long: -107.8225
County: Garfield
Elev: 2910 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.2 38.7 48.1 58.7 68.1 77.5 87.2 86.5 74.7 60.7 45.9 35.6 59.8
Mean 24.3 28.0 36.8 46.3 55.7 64.7 72.4 71.4 60.6 48.0 35.0 25.0 47.4
Minimum 13.5 17.2 25.6 33.9 43.2 51.9 57.5 56.3 46.5 35.4 24.0 14.3 35.0
CDD 0 0 0 1 18 88 245 224 55 3 <0.5 0 635
HDD 1260 1037 873 562 308 97 17 26 187 529 902 1241 7039
Precip 0.39 0.33 0.67 1.19 2.56 2.42 1.66 1.08 1.25 0.92 0.50 0.42 13.39
City: MYSTIC LAKE
State: MT
ID: USC00245961
Lat: 45.2436
Long: -109.7311
County: Stillwater
Elev: 6544 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.6 37.0 42.9 49.9 58.6 67.1 75.3 75.1 65.5 53.5 40.8 33.7 53.0
Mean 27.5 28.0 33.2 39.5 47.7 55.7 63.2 62.9 54.1 43.8 33.0 26.0 43.0
Minimum 19.4 19.0 23.5 29.0 36.9 44.3 51.2 50.8 42.6 34.0 25.3 18.4 32.9
CDD 0 0 0 <0.5 1 11 54 46 10 <0.5 0 0 122
HDD 1163 1036 986 766 535 290 109 110 339 659 958 1207 8157
Precip 1.14 1.16 1.93 2.53 3.58 3.18 2.51 1.89 1.79 2.17 1.63 1.29 24.80
Snow 16.6 18.7 29.8 31.4 13.5 1.6 0.0 0.0 5.6 19.4 20.1 18.1 174.8
City: NASHUA #2
State: MT
ID: USC00245983
Lat: 48.1322
Long: -106.3536
County: Valley
Elev: 2067 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 26.1 32.8 46.3 61.2 72.2 79.9 87.4 88.0 74.8 60.6 42.7 27.1 58.4
Mean 14.6 21.1 33.5 46.5 57.1 65.6 72.2 71.8 59.2 46.2 29.5 16.5 44.6
Minimum 3.2 9.3 20.7 31.9 42.0 51.3 57.1 55.7 43.6 31.9 16.4 5.9 30.8
CDD 0 0 0 1 15 87 235 232 41 1 0 0 612
HDD 1561 1231 976 554 260 69 10 20 215 582 1063 1503 8045
Precip 0.38 0.23 0.49 0.84 2.08 2.87 2.04 1.19 1.05 0.79 0.43 0.36 12.75
City: NEIHART 7 NW
State: MT
ID: USC00246007
Lat: 47.0381
Long: -110.7858
County: Cascade
Elev: 4945 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.3 38.3 45.7 55.4 63.3 70.9 80.3 80.6 69.6 57.3 42.8 34.9 56.4
Mean 24.8 27.6 32.9 41.1 49.4 56.2 63.7 63.3 54.1 43.7 32.9 24.8 42.9
Minimum 13.4 16.8 20.1 26.8 35.5 41.4 47.1 46.0 38.5 30.0 22.9 14.6 29.5
CDD 0 0 0 0 <0.5 5 46 38 6 0 0 0 95
HDD 1245 1049 995 717 484 270 87 91 335 662 965 1247 8146
City: NEIHART 8 NNW
State: MT
ID: USC00246008
Lat: 47.0414
Long: -110.7761
County: Cascade
Elev: 5230 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.8 39.9 46.4 54.6 63.3 71.5 81.1 81.5 71.1 58.7 43.6 36.2 57.2
Mean 26.7 27.9 33.8 40.8 48.9 56.3 63.6 63.7 54.7 44.7 33.0 25.4 43.4
Minimum 15.5 15.9 21.2 27.0 34.4 41.2 46.0 45.9 38.3 30.6 22.3 14.6 29.5
CDD 0 0 0 <0.5 1 11 57 60 10 <0.5 0 0 139
HDD 1189 1039 967 726 501 271 102 100 319 631 961 1227 8034
Precip 0.93 0.63 1.56 2.05 3.56 3.68 2.30 2.07 2.00 1.54 0.83 1.02 22.17
Snow 14.3 12.6 19.0 14.9 6.7 0.4 0.0 0.0 3.2 9.6 10.4 13.8 104.9
City: NORRIS MADISON PH
State: MT
ID: USC00246157
Lat: 45.4856
Long: -111.6325
County: Madison
Elev: 4745 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 39.7 43.1 50.5 58.6 67.9 76.5 86.7 86.2 75.9 61.8 47.2 38.5 61.1
Mean 32.0 34.3 40.8 47.8 56.4 64.0 72.5 71.7 62.5 50.9 39.3 31.0 50.4
Minimum 24.4 25.5 31.1 37.1 44.8 51.6 58.4 57.2 49.0 40.0 31.4 23.6 39.6
CDD 0 0 0 1 17 75 248 225 64 4 0 0 632
HDD 1022 860 750 516 285 103 14 17 140 441 771 1052 5970
Precip 0.51 0.49 1.00 1.86 2.91 3.05 1.49 1.53 1.29 1.50 0.72 0.60 16.95
City: NYE 2
State: MT
ID: USC00246190
Lat: 45.4350
Long: -109.8081
County: Stillwater
Elev: 4840 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 40.7 42.0 49.3 57.2 65.8 73.6 83.0 83.0 73.0 60.6 46.8 38.9 59.6
Mean 30.4 31.0 37.7 44.3 51.7 58.7 65.6 65.0 56.6 47.2 36.7 28.8 46.2
Minimum 20.1 19.9 26.0 31.4 37.6 43.7 48.2 47.1 40.2 33.7 26.5 18.8 32.8
CDD 0 0 <0.5 1 3 18 90 76 17 3 <0.5 0 208
HDD 1073 953 848 622 416 208 71 75 269 556 851 1120 7062
Precip 0.51 0.60 1.13 1.94 3.39 2.99 1.83 1.26 1.47 1.54 0.80 0.59 18.05
Snow 8.5 12.5 13.2 17.8 2.7 0.1 0.0 0.0 2.4 8.3 11.0 11.3 87.8
City: OLNEY
State: MT
ID: USC00246218
Lat: 48.5497
Long: -114.5739
County: Flathead
Elev: 3165 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.0 34.8 44.0 54.2 63.9 70.7 80.0 80.0 68.6 52.9 35.7 26.5 53.4
Mean 19.8 23.3 31.8 40.3 49.0 55.6 61.7 60.5 51.0 39.2 27.5 19.0 40.0
Minimum 11.6 11.8 19.5 26.3 34.2 40.5 43.4 41.0 33.5 25.4 19.4 11.5 26.6
CDD 0 0 0 0 1 6 32 22 1 0 0 0 61
HDD 1401 1168 1031 742 495 288 134 162 419 801 1124 1426 9191
Precip 2.01 1.58 1.16 1.37 2.17 3.13 1.65 1.31 1.51 1.47 2.42 2.03 21.81
Snow 27.1 18.5 8.9 3.0 0.2 0.0 0.0 0.0 0.0 0.8 16.5 26.5 101.5
City: OPHEIM 10 N
State: MT
ID: USC00246236
Lat: 48.9989
Long: -106.3800
County: Valley
Elev: 2878 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 22.3 26.8 39.2 55.6 66.4 74.4 81.6 82.2 70.0 55.5 37.1 24.3 53.1
Mean 11.4 15.9 27.6 41.2 51.5 60.1 65.8 65.4 54.0 41.6 25.9 13.0 39.6
Minimum 0.6 5.0 16.1 26.8 36.6 45.8 50.0 48.6 38.0 27.6 14.6 1.8 26.0
CDD 0 0 0 <0.5 5 36 93 94 13 <0.5 0 0 241
HDD 1660 1375 1158 714 424 183 68 82 343 727 1174 1610 9518
Precip 0.35 0.22 0.58 0.66 2.44 3.10 2.19 1.22 1.34 0.70 0.25 0.23 13.28
City: OPHEIM 12 SSE
State: MT
ID: USC00246238
Lat: 48.6956
Long: -106.3153
County: Valley
Elev: 2936 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 21.6 26.2 38.4 54.1 64.7 73.1 80.6 80.5 68.1 53.4 35.9 23.1 51.7
Mean 10.0 14.4 26.4 39.7 50.0 58.8 64.9 64.2 52.5 39.4 24.1 11.6 38.1
Minimum -1.5 2.6 14.5 25.3 35.4 44.5 49.1 48.0 37.0 25.5 12.3 0.1 24.5
CDD 0 0 0 <0.5 3 26 78 81 9 <0.5 0 0 198
HDD 1703 1417 1195 759 467 212 83 104 383 792 1227 1655 9998
Precip 0.26 0.16 0.34 0.72 1.96 2.63 2.05 1.17 1.03 0.62 0.31 0.22 11.47
Snow 8.0 4.9 5.7 2.6 1.9 0.0 0.0 0.0 0.4 2.4 6.2 7.9 40.0
City: OVANDO 9 SSE
State: MT
ID: USC00246304
Lat: 46.8819
Long: -113.0564
County: Powell
Elev: 4325 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.4 34.3 44.1 54.2 63.4 71.0 80.5 80.4 69.4 55.4 39.2 28.2 54.3
Mean 18.8 21.6 31.6 39.5 47.8 55.0 61.2 60.1 50.6 39.3 27.5 17.2 39.3
Minimum 7.2 9.0 19.0 24.9 32.1 39.0 41.8 39.8 31.7 23.1 15.9 6.2 24.2
CDD 0 0 0 0 1 4 25 17 1 0 0 0 47
HDD 1432 1214 1037 763 535 304 144 169 434 798 1124 1482 9437
Precip 0.71 0.54 0.58 0.85 1.68 1.87 1.14 1.16 1.11 0.82 1.00 0.86 12.32
City: PARK CITY 1NE
State: MT
ID: USC00246370
Lat: 45.6517
Long: -108.9019
County: Stillwater
Elev: 3538 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.7 37.5 47.2 59.2 62.6 69.4 84.3 77.9 68.2 54.0 42.2 34.2 56.1
Mean 25.7 28.1 36.3 46.0 52.1 59.7 70.1 66.3 56.7 43.9 33.3 25.1 45.3
Minimum 15.6 18.7 25.3 32.8 41.6 50.0 55.9 54.6 45.2 33.7 24.4 16.0 34.6
CDD 0 0 0 1 2 31 177 100 32 <0.5 0 0 342
HDD 1220 1033 891 571 402 189 20 61 281 655 951 1236 7511
City: PHILIPSBURG RS
State: MT
ID: USC00246472
Lat: 46.3158
Long: -113.3000
County: Granite
Elev: 5270 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.4 38.1 46.3 54.3 62.6 70.4 79.8 80.3 70.2 57.8 42.9 32.9 56.0
Mean 25.9 27.4 34.4 40.9 48.3 55.5 61.8 61.3 52.8 43.3 32.2 23.5 42.4
Minimum 16.3 16.7 22.6 27.6 34.0 40.5 43.8 42.4 35.4 28.8 21.5 14.0 28.7
CDD 0 0 0 <0.5 1 7 30 24 3 <0.5 0 0 65
HDD 1214 1053 947 722 519 293 129 137 369 673 984 1288 8327
Precip 0.49 0.54 1.00 1.46 2.54 2.36 1.45 1.59 1.43 1.18 0.68 0.59 15.31
City: PLEASANT VALLEY 5 SE
State: MT
ID: USC00246580
Lat: 48.1056
Long: -114.8778
County: Flathead
Elev: 3540 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.2 36.1 43.7 52.7 63.1 70.4 79.5 79.8 69.4 53.4 37.5 29.1 53.9
Mean 20.9 23.1 30.7 37.6 47.4 54.1 60.3 59.1 50.3 37.8 26.7 19.5 39.0
Minimum 10.6 10.1 17.7 22.5 31.8 37.7 41.1 38.4 31.1 22.2 15.9 9.8 24.2
CDD 0 0 0 0 1 3 27 11 <0.5 0 0 0 42
HDD 1367 1173 1063 822 545 332 173 194 443 843 1149 1412 9516
Precip 1.80 1.62 1.52 1.34 2.11 1.84 1.11 0.98 1.19 1.02 1.46 1.64 17.63
City: PLENTYWOOD
State: MT
ID: USC00246586
Lat: 48.7789
Long: -104.5561
County: Sheridan
Elev: 2063 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.6 29.4 42.3 58.8 69.5 77.4 85.0 84.9 72.6 57.9 39.1 24.7 55.6
Mean 12.1 17.9 30.0 44.1 54.8 63.5 69.6 68.6 56.6 43.5 27.7 14.0 42.0
Minimum 0.5 6.3 17.7 29.4 40.0 49.5 54.1 52.3 40.7 29.1 16.2 3.2 28.4
CDD 0 0 0 1 15 74 170 159 26 <0.5 0 0 446
HDD 1641 1320 1085 628 333 121 30 48 276 667 1120 1582 8852
Precip 0.36 0.28 0.54 0.85 1.97 2.80 2.40 1.30 1.04 0.82 0.53 0.35 13.24
City: PLEVNA
State: MT
ID: USC00246601
Lat: 46.4178
Long: -104.5164
County: Fallon
Elev: 2780 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.8 33.9 44.5 57.7 67.8 77.5 86.8 85.5 74.1 58.7 42.2 30.3 57.5
Mean 18.0 22.7 32.5 44.1 54.4 63.7 71.3 69.7 58.6 44.9 30.4 18.3 44.2
Minimum 6.2 11.5 20.6 30.6 41.1 49.9 55.9 54.0 43.1 31.1 18.5 6.4 30.8
CDD 0 0 0 1 13 77 217 185 39 1 0 0 533
HDD 1457 1184 1006 626 340 116 20 38 231 624 1039 1446 8128
Precip 0.48 0.43 0.80 1.45 2.40 2.59 1.72 1.29 1.26 1.21 0.60 0.39 14.62
Snow 5.4 4.7 6.3 4.2 2.1 0.0 0.0 0.0 0.3 1.8 4.3 4.9 34.0
City: POLEBRIDGE 1 N
State: MT
ID: USC00246618
Lat: 48.7792
Long: -114.2889
County: Flathead
Elev: 3540 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.6 38.0 44.3 54.8 63.7 71.2 81.5 80.5 69.3 55.2 39.7 30.4 55.1
Mean 20.5 24.2 31.7 40.7 48.3 54.9 61.2 60.2 49.5 39.8 29.2 20.0 40.1
Minimum 9.4 10.3 19.0 26.5 32.9 38.6 40.8 39.8 29.6 24.3 18.6 9.6 25.0
CDD 0 0 0 0 <0.5 3 26 16 <0.5 0 0 0 46
HDD 1379 1144 1034 731 518 306 146 167 466 783 1076 1394 9144
Precip 1.74 1.01 1.33 1.41 2.43 2.69 1.59 1.18 1.42 1.35 2.24 2.29 20.68
City: POLEBRIDGE
State: MT
ID: USC00246615
Lat: 48.7647
Long: -114.2842
County: Flathead
Elev: 3520 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.0 36.3 44.4 54.3 63.4 70.3 79.2 79.2 68.5 54.5 38.3 28.9 54.1
Mean 19.9 23.1 31.6 40.2 47.6 54.3 59.7 58.5 49.8 39.9 29.1 19.0 39.5
Minimum 8.9 9.9 18.8 26.1 31.9 38.3 40.3 37.7 31.2 25.2 19.8 9.1 24.8
CDD 0 0 0 0 <0.5 3 15 9 <0.5 0 0 0 28
HDD 1396 1173 1035 744 538 324 178 212 455 780 1079 1426 9340
Precip 2.01 1.37 1.44 1.36 1.41 2.39 1.37 1.12 1.43 1.32 2.32 1.91 19.45
City: POLSON KERR DAM
State: MT
ID: USC00246640
Lat: 47.6775
Long: -114.2419
County: Lake
Elev: 2730 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.2 38.9 48.8 58.4 66.8 73.4 84.0 83.7 72.1 57.2 41.5 32.3 57.7
Mean 28.2 30.8 38.6 46.5 54.3 60.7 68.7 68.2 58.3 46.3 34.7 26.8 46.9
Minimum 22.3 22.8 28.4 34.6 41.7 48.1 53.4 52.7 44.6 35.4 27.9 21.3 36.2
CDD 0 0 0 <0.5 5 29 149 139 18 <0.5 0 0 339
HDD 1139 956 818 555 338 156 34 39 217 580 909 1184 6927
Precip 0.90 0.72 0.94 1.33 2.20 2.40 1.20 1.12 1.32 1.18 1.17 1.05 15.53
Snow 7.6 3.6 4.3 0.5 0.0 0.0 0.0 0.0 0.0 0.2 4.9 10.7 31.8
City: POLSON
State: MT
ID: USC00246635
Lat: 47.6750
Long: -114.1906
County: Lake
Elev: 3010 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.9 37.4 47.2 57.1 65.6 72.7 82.1 81.7 70.3 55.7 41.2 31.9 56.5
Mean 27.7 29.8 37.6 45.5 53.2 60.2 67.5 67.0 57.5 45.7 34.2 26.0 46.1
Minimum 21.6 22.2 28.0 34.0 40.8 47.7 52.8 52.3 44.6 35.8 27.3 20.2 35.7
CDD 0 0 0 <0.5 5 25 120 111 13 <0.5 0 0 275
HDD 1155 985 849 583 371 169 44 49 239 597 923 1207 7173
Precip 0.87 0.74 0.99 1.40 2.24 2.41 1.00 1.14 1.41 1.20 1.23 1.09 15.72
City: POMPEYS PILLAR 18 N
State: MT
ID: USC00246647
Lat: 46.2167
Long: -108.0261
County: Yellowstone
Elev: 3466 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.2 39.2 47.8 57.5 65.9 75.9 86.3 86.0 73.0 58.9 45.2 35.3 59.0
Mean 23.7 27.3 35.3 44.2 53.5 62.9 71.6 70.5 58.6 45.8 32.7 23.7 45.9
Minimum 12.3 15.4 22.8 30.8 41.0 49.8 56.8 55.0 44.2 32.6 20.1 12.2 32.9
CDD 0 0 0 <0.5 9 60 224 204 39 1 0 0 536
HDD 1279 1055 921 626 367 124 21 33 231 597 970 1278 7504
Precip 0.42 0.58 0.97 1.56 2.36 2.39 1.13 0.97 1.27 1.18 0.62 0.44 13.89
City: PONY
State: MT
ID: USC00246655
Lat: 45.6572
Long: -111.8986
County: Madison
Elev: 5590 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.3 36.5 43.7 51.6 60.1 68.9 78.4 77.4 67.0 55.4 41.1 32.7 54.0
Mean 24.8 26.6 33.6 40.9 49.0 56.6 64.6 63.4 54.0 43.6 31.3 23.2 42.7
Minimum 15.2 16.7 23.4 30.1 37.9 44.3 50.7 49.4 41.0 31.8 21.5 13.6 31.4
CDD 0 0 0 <0.5 1 14 71 51 6 <0.5 0 0 142
HDD 1248 1075 975 724 497 266 85 100 336 663 1011 1297 8277
Precip 0.50 0.57 1.37 2.08 3.04 3.00 1.79 1.33 1.71 1.49 0.91 0.49 18.28
City: PORT OF MORGAN
State: MT
ID: USC00246672
Lat: 48.9997
Long: -107.8322
County: Phillips
Elev: 2830 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.8 29.2 41.4 57.7 67.4 75.1 83.4 83.1 71.0 57.2 38.6 25.4 54.6
Mean 14.2 19.2 30.6 44.1 53.6 61.7 68.5 67.8 56.4 44.0 28.4 15.7 42.1
Minimum 4.6 9.1 19.7 30.5 39.8 48.3 53.7 52.5 41.7 30.9 18.3 6.1 29.7
CDD 0 0 0 1 9 49 147 142 21 1 0 0 370
HDD 1575 1284 1068 628 363 148 37 55 281 650 1096 1527 8711
Precip 0.31 0.09 0.28 0.58 1.97 2.71 1.92 1.14 1.21 0.50 0.40 0.21 11.32
Snow 2.8 1.7 4.5 1.2 1.1 0.0 0.0 0.0 0.0 0.9 2.0 1.8 16.0
City: POTOMAC
State: MT
ID: USC00246685
Lat: 46.8814
Long: -113.5744
County: Missoula
Elev: 3620 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.3 37.0 47.0 56.4 65.6 73.2 82.8 82.7 71.8 57.4 39.9 29.2 56.3
Mean 19.5 23.4 32.6 40.0 48.0 55.4 61.7 60.4 51.2 40.2 28.1 17.9 39.9
Minimum 7.7 9.7 18.3 23.6 30.3 37.7 40.5 38.1 30.5 23.0 16.4 6.6 23.6
CDD 0 0 0 0 1 6 32 18 1 0 0 0 57
HDD 1410 1166 1003 750 529 292 136 161 416 769 1106 1460 9198
Precip 1.30 1.03 0.80 1.12 1.84 2.12 1.04 0.84 0.99 1.18 1.61 1.28 15.15
Snow 15.2 8.9 4.0 0.9 0.2 0.0 0.0 0.0 0.1 0.4 8.4 13.8 51.9
City: POWDERVILLE 8 NNE
State: MT
ID: USC00246691
Lat: 45.8525
Long: -105.0350
County: Custer
Elev: 2800 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.8 37.3 47.9 60.1 69.9 79.9 90.1 89.3 76.5 61.3 44.5 33.0 60.3
Mean 20.8 25.4 34.9 45.9 55.8 65.4 73.7 72.4 60.1 46.7 32.1 20.8 46.3
Minimum 8.8 13.4 21.9 31.6 41.7 50.9 57.3 55.4 43.7 32.0 19.7 8.7 32.2
CDD 0 0 0 1 16 100 281 251 52 1 0 0 702
HDD 1370 1110 933 576 301 88 12 23 199 570 987 1368 7537
Precip 0.41 0.37 0.80 1.48 2.29 2.57 1.64 1.04 1.27 1.20 0.48 0.36 13.91
Snow 4.7 4.4 5.2 2.1 1.8 0.0 0.0 0.0 0.0 1.3 3.9 5.0 28.4
City: POWER 6 SE
State: MT
ID: USC00246700
Lat: 47.6544
Long: -111.5981
County: Cascade
Elev: 3750 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.34 0.36 0.64 1.09 1.91 2.09 1.15 1.36 1.24 0.68 0.42 0.36 11.64
Snow 6.0 5.9 9.3 8.6 3.5 0.8 0.0 0.3 1.6 3.9 6.7 6.3 52.9
City: PRYOR
State: MT
ID: USC00246747
Lat: 45.4328
Long: -108.5303
County: Big Horn
Elev: 4068 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.50 0.64 1.19 1.71 2.86 2.19 1.33 0.84 1.38 1.58 0.80 0.48 15.50
Snow 5.5 6.9 8.2 7.4 1.9 0.0 0.0 0.0 0.9 1.9 7.3 4.2 44.2
City: RAPELJE 4S
State: MT
ID: USC00246862
Lat: 45.9150
Long: -109.2533
County: Stillwater
Elev: 4125 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.8 41.4 49.3 58.4 67.7 76.7 86.8 86.2 74.8 61.1 46.2 37.5 60.5
Mean 27.1 29.1 36.2 44.5 53.2 61.6 69.8 68.8 58.7 47.0 34.6 26.4 46.5
Minimum 15.5 16.9 23.2 30.5 38.6 46.5 52.9 51.5 42.7 33.0 23.0 15.3 32.5
CDD 0 0 0 <0.5 6 45 179 156 33 2 0 0 422
HDD 1173 1004 891 617 373 147 29 37 221 558 912 1196 7159
Precip 0.46 0.44 0.91 1.71 2.54 2.21 1.77 1.01 1.24 1.15 0.56 0.45 14.45
Snow 7.4 7.4 12.6 7.8 2.1 0.0 0.0 0.0 1.4 3.7 7.3 8.5 58.2
City: RAYMOND BORDER STN
State: MT
ID: USC00246893
Lat: 48.9947
Long: -104.5753
County: Sheridan
Elev: 2384 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 21.4 26.9 39.2 56.7 67.6 75.5 82.5 82.8 71.1 56.2 36.3 23.4 53.4
Mean 11.8 17.0 28.7 43.3 54.0 62.5 68.4 67.9 57.0 43.6 26.9 14.2 41.4
Minimum 2.3 7.0 18.1 29.8 40.4 49.5 54.3 53.1 42.8 31.0 17.5 5.0 29.3
CDD 0 0 0 1 12 61 144 146 28 2 0 0 394
HDD 1648 1345 1127 653 353 136 39 55 270 665 1143 1575 9009
Precip 0.30 0.42 0.58 0.98 2.13 2.79 2.39 1.68 1.03 0.80 0.43 0.46 13.99
City: RAYNESFORD 2 NNW
State: MT
ID: USC00246902
Lat: 47.2972
Long: -110.7456
County: Judith Basin
Elev: 4215 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.2 39.1 46.0 55.5 64.1 71.8 81.4 81.7 70.7 58.1 44.0 36.1 57.3
Mean 26.8 28.5 34.8 43.1 51.3 58.7 66.2 66.0 56.6 46.0 34.1 26.2 45.0
Minimum 16.5 17.9 23.6 30.7 38.4 45.7 51.1 50.3 42.5 33.9 24.2 16.3 32.7
CDD 0 0 0 <0.5 3 23 103 102 24 2 0 0 256
HDD 1183 1022 936 657 430 210 64 71 276 591 927 1203 7569
Precip 0.86 0.75 1.31 2.00 2.94 3.23 1.84 1.57 1.86 1.36 1.05 1.04 19.81
Snow 16.9 12.8 21.0 16.4 2.4 0.3 0.0 0.0 0.4 6.1 11.9 21.2 109.4
City: RED LODGE
State: MT
ID: USC00246918
Lat: 45.1897
Long: -109.2861
County: Carbon
Elev: 5829 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.7 36.3 44.1 52.7 62.1 71.0 79.9 79.2 68.6 55.1 41.6 33.9 55.1
Mean 24.8 25.6 32.9 40.6 49.2 57.3 64.6 63.6 54.5 43.3 31.2 23.5 42.7
Minimum 13.9 14.9 21.7 28.5 36.2 43.6 49.4 48.1 40.5 31.4 20.9 13.1 30.3
CDD 0 0 0 <0.5 2 18 73 55 11 <0.5 0 0 159
HDD 1246 1103 995 732 493 249 84 97 324 674 1012 1286 8297
Precip 1.02 1.12 2.04 2.65 3.76 2.57 1.53 1.06 1.79 2.30 1.26 1.16 22.26
Snow 16.9 17.2 22.6 22.1 9.1 0.4 0.0 0.0 3.2 16.6 18.4 18.7 145.2
City: REDSTONE
State: MT
ID: USC00246927
Lat: 48.8197
Long: -104.9428
County: Sheridan
Elev: 2106 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.0 27.8 39.7 56.6 67.5 75.9 83.3 83.3 70.7 55.4 37.2 24.7 53.9
Mean 11.5 16.9 28.4 42.0 52.7 61.6 67.4 66.6 54.7 41.5 26.2 13.3 40.3
Minimum 0.0 6.1 17.0 27.3 38.0 47.4 51.5 49.9 38.7 27.7 15.1 1.9 26.8
CDD 0 0 0 <0.5 8 51 123 118 15 <0.5 0 0 315
HDD 1658 1345 1136 692 388 151 49 69 324 727 1165 1602 9307
Precip 0.31 0.12 0.58 0.82 2.07 2.66 2.15 1.57 1.01 0.82 0.40 0.36 12.87
Snow 4.6 2.7 2.1 0.8 0.3 0.0 0.0 0.0 0.0 0.7 3.6 3.1 17.9
City: RICHEY 10 SW
State: MT
ID: USC00247023
Lat: 47.5686
Long: -105.2339
County: Dawson
Elev: 2400 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.30 0.25 0.47 1.06 2.22 2.35 2.21 1.13 1.06 1.03 0.49 0.88 13.45
City: RIDGEWAY 1 S
State: MT
ID: USC00247034
Lat: 45.5022
Long: -104.4478
County: Carter
Elev: 3316 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.2 34.6 44.3 56.8 66.6 75.5 84.7 84.1 72.4 58.6 43.0 31.9 57.1
Mean 19.3 22.9 32.5 43.8 53.8 62.8 70.7 69.5 57.8 45.0 30.9 19.9 44.2
Minimum 7.3 11.2 20.6 30.9 41.1 50.1 56.7 54.9 43.2 31.5 18.8 7.8 31.3
CDD 0 0 <0.5 1 9 65 204 181 34 1 0 0 495
HDD 1418 1179 1009 635 355 131 28 42 250 619 1023 1399 8088
Precip 0.35 0.38 0.81 1.59 2.36 2.38 1.72 1.29 1.31 1.14 0.45 0.43 14.21
Snow 6.4 4.9 9.5 5.4 1.9 0.0 0.0 0.0 0.6 2.7 6.3 5.6 43.3
City: ROBERTS 1 N
State: MT
ID: USC00247128
Lat: 45.3753
Long: -109.1697
County: Carbon
Elev: 4670 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.36 0.46 0.80 1.59 2.82 2.05 0.99 0.77 1.26 1.44 0.54 0.42 13.50
City: ROCK SPRINGS
State: MT
ID: USC00247136
Lat: 46.8203
Long: -106.2453
County: Rosebud
Elev: 3024 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.1 34.0 45.0 56.9 66.8 75.8 85.6 84.9 72.5 57.8 42.1 30.5 56.9
Mean 19.1 23.6 33.4 44.0 53.7 62.7 70.7 69.9 58.1 45.0 31.2 20.3 44.4
Minimum 9.2 13.1 21.8 31.0 40.6 49.6 55.8 55.0 43.7 32.2 20.4 10.1 32.0
CDD 0 0 0 <0.5 9 63 201 192 40 1 0 0 506
HDD 1421 1160 980 632 360 132 25 38 247 621 1012 1385 8014
Precip 0.18 0.19 0.43 1.05 2.40 2.38 1.70 0.85 1.07 0.90 0.26 0.26 11.67
City: ROGERS PASS 9 NNE
State: MT
ID: USC00247159
Lat: 47.1900
Long: -112.2906
County: Lewis and Clark
Elev: 4200 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.0 37.8 44.8 53.2 62.1 70.5 80.6 80.2 69.1 56.0 41.5 33.7 55.5
Mean 24.9 27.0 33.5 41.5 50.2 58.0 65.4 64.5 54.5 44.1 32.3 24.6 43.5
Minimum 14.7 16.2 22.3 29.8 38.2 45.5 50.3 48.8 39.9 32.2 23.1 15.5 31.5
CDD 0 0 0 <0.5 2 19 89 79 15 1 0 0 206
HDD 1245 1064 975 705 463 229 75 95 330 648 981 1252 8062
Precip 0.56 0.59 1.11 1.58 2.75 2.62 1.35 1.67 1.80 1.17 0.74 0.67 16.61
Snow 12.0 14.9 16.1 10.7 4.4 0.0 0.0 0.0 3.1 5.1 7.7 11.0 85.0
City: ROUND BUTTE 1 NNW
State: MT
ID: USC00247204
Lat: 47.5375
Long: -114.2761
County: Lake
Elev: 3100 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.2 38.3 48.0 56.4 65.4 72.3 83.1 82.4 71.7 57.4 42.1 33.6 57.2
Mean 27.6 30.0 37.5 44.7 52.5 59.1 67.2 66.4 57.4 45.6 34.2 27.0 45.8
Minimum 20.9 21.7 27.0 32.9 39.6 45.9 51.2 50.4 43.1 33.7 26.3 20.3 34.5
CDD 0 0 0 0 1 13 107 96 14 <0.5 0 0 231
HDD 1161 980 853 610 388 190 40 53 242 603 924 1179 7224
City: ROUNDUP 15 SW
State: MT
ID: USC00247220
Lat: 46.3256
Long: -108.7403
County: Musselshell
Elev: 3386 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.3 41.5 50.0 58.1 67.9 77.5 87.6 86.5 75.9 61.9 46.2 37.1 60.7
Mean 24.3 28.3 35.4 43.7 53.3 62.1 69.9 67.9 58.2 46.3 33.1 24.8 45.7
Minimum 11.2 15.1 20.7 29.2 38.6 46.6 52.2 49.2 40.5 30.6 19.9 12.6 30.6
CDD 0 0 0 <0.5 4 41 177 132 27 <0.5 0 0 381
HDD 1263 1028 919 641 368 129 25 44 231 582 958 1244 7433
Precip 0.48 0.41 0.92 1.63 2.46 2.54 1.63 0.95 1.19 0.97 0.52 0.55 14.25
City: ROUNDUP
State: MT
ID: USC00247214
Lat: 46.4414
Long: -108.5397
County: Musselshell
Elev: 3193 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 39.9 44.2 52.7 62.0 71.7 80.1 89.6 88.9 77.4 63.4 48.1 38.8 63.2
Mean 27.5 30.9 38.5 47.1 56.6 65.0 72.5 71.2 60.5 48.6 35.9 27.0 48.5
Minimum 15.2 17.7 24.4 32.2 41.6 49.9 55.5 53.5 43.6 33.8 23.6 15.1 33.9
CDD 0 0 0 1 15 84 247 212 45 2 <0.5 0 606
HDD 1161 953 820 538 274 84 13 20 180 510 874 1179 6607
Precip 0.34 0.32 0.71 1.51 2.27 2.65 1.88 1.12 1.18 1.02 0.45 0.70 14.15
Snow 4.7 2.9 4.2 0.6 0.1 0.0 0.0 0.0 0.0 0.6 2.7 5.1 20.9
City: ROY 24 NE MOBRIDGE
State: MT
ID: USC00247234
Lat: 47.6167
Long: -108.7000
County: Fergus
Elev: 2313 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.2 41.3 51.6 62.0 70.8 79.1 88.8 88.4 76.4 63.4 45.9 35.1 61.5
Mean 20.6 26.2 37.4 46.7 56.0 64.4 72.0 70.8 59.2 47.2 31.7 21.4 46.2
Minimum 7.0 11.1 23.1 31.5 41.2 49.7 55.3 53.2 42.0 31.0 17.5 7.7 31.0
CDD 0 0 0 1 14 77 231 205 31 <0.5 0 0 560
HDD 1376 1086 857 548 294 95 12 26 205 552 999 1351 7403
Precip 0.39 0.31 0.67 1.14 2.47 2.69 1.66 1.45 1.20 0.68 0.47 0.50 13.63
City: ROY 8 NE
State: MT
ID: USC00247228
Lat: 47.4869
Long: -108.8372
County: Fergus
Elev: 3085 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.6 38.1 47.6 57.9 67.3 76.1 86.0 85.6 73.7 60.4 45.4 34.6 59.0
Mean 22.2 25.7 34.8 44.4 53.6 62.3 69.9 68.9 58.1 46.2 32.9 22.4 45.2
Minimum 9.7 13.4 22.0 30.8 40.0 48.5 53.8 52.2 42.5 32.0 20.4 10.3 31.4
CDD 0 0 0 <0.5 7 53 178 162 30 2 0 0 433
HDD 1328 1099 936 620 359 134 27 41 237 585 963 1319 7648
Precip 0.36 0.30 0.68 1.11 2.77 2.35 1.76 1.26 1.15 0.85 0.41 0.49 13.49
Snow 7.1 5.0 6.9 3.0 1.1 0.0 0.0 0.0 0.3 2.1 4.7 6.5 36.7
City: RUDYARD 19S
State: MT
ID: USC00247247
Lat: 48.2783
Long: -110.6019
County: Chouteau
Elev: 2878 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.0 36.0 45.6 58.4 66.7 75.1 84.2 82.7 70.5 58.7 43.5 32.8 57.3
Mean 19.7 23.1 32.9 44.3 52.9 61.5 68.6 67.0 56.0 44.9 31.0 20.6 43.6
Minimum 7.3 10.2 20.3 30.2 39.1 47.9 53.1 51.3 41.4 31.0 18.4 8.3 30.0
CDD 0 0 0 <0.5 4 34 147 122 15 <0.5 0 0 322
HDD 1406 1173 993 621 379 139 34 60 286 625 1021 1377 8116
Precip 0.35 0.24 0.58 1.00 1.85 2.33 1.31 1.27 1.20 0.59 0.42 0.37 11.51
City: RUDYARD 21 N
State: MT
ID: USC00247248
Lat: 48.8542
Long: -110.5961
County: Hill
Elev: 3000 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.7 36.3 45.3 58.3 68.0 75.5 84.7 83.8 72.1 59.1 42.9 33.1 57.8
Mean 20.3 23.5 32.9 43.8 53.3 60.8 67.6 66.5 56.3 44.6 30.5 20.7 43.5
Minimum 7.9 10.6 20.5 29.3 38.6 46.1 50.4 49.2 40.4 30.1 18.1 8.3 29.2
CDD 0 0 0 <0.5 7 28 120 108 15 <0.5 0 0 279
HDD 1386 1163 995 636 370 154 41 62 277 633 1035 1373 8125
Precip 0.28 0.27 0.46 0.72 1.89 2.26 1.46 1.25 1.18 0.65 0.41 0.32 11.15
City: RUDYARD 27 N
State: MT
ID: USC00247250
Lat: 48.9375
Long: -110.5661
County: Hill
Elev: 3010 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.6 33.6 43.4 55.6 66.8 73.9 83.3 82.3 70.6 57.4 40.7 31.1 55.8
Mean 18.7 22.7 32.4 43.1 53.9 61.2 68.4 67.2 56.3 44.7 29.6 19.8 43.3
Minimum 7.8 11.8 21.3 30.6 41.0 48.5 53.6 52.2 42.0 31.9 18.5 8.5 30.8
CDD 0 0 0 1 8 40 139 134 20 <0.5 0 0 341
HDD 1435 1184 1012 658 352 154 32 64 281 631 1062 1401 8266
City: RYEGATE 18 NNW
State: MT
ID: USC00247263
Lat: 46.5333
Long: -109.3442
County: Golden Valley
Elev: 4440 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.6 39.8 47.0 55.9 64.8 73.1 82.4 82.5 71.4 59.1 45.1 35.5 57.9
Mean 24.1 26.7 33.5 41.9 51.0 59.4 67.0 66.3 55.6 44.1 32.1 23.5 43.9
Minimum 11.6 13.5 20.1 27.9 37.2 45.7 51.5 50.1 39.8 29.0 19.0 11.4 29.8
CDD 0 0 0 <0.5 2 29 117 108 18 <0.5 0 0 275
HDD 1268 1074 975 693 436 197 56 68 300 650 988 1288 7994
Precip 0.43 0.30 0.67 1.28 1.90 2.66 1.74 1.22 0.91 0.81 0.48 0.43 12.83
Snow 7.3 4.5 9.5 5.2 1.0 0.0 0.0 0.0 0.4 3.2 5.8 6.9 43.8
City: RYEGATE
State: MT
ID: USC00247261
Lat: 46.2986
Long: -109.2561
County: Golden Valley
Elev: 3650 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.7 42.4 50.3 59.7 68.9 76.9 87.1 86.2 75.4 62.6 45.9 37.2 61.0
Mean 25.9 30.0 37.0 45.3 54.5 62.8 70.5 69.0 58.5 47.4 34.2 25.4 46.8
Minimum 14.0 17.5 23.7 30.9 40.1 48.6 53.8 51.8 41.6 32.3 22.5 13.5 32.6
CDD 0 0 0 <0.5 6 48 182 154 21 1 0 0 412
HDD 1214 981 868 591 332 116 13 30 216 545 924 1229 7058
Precip 0.33 0.53 0.86 1.91 2.38 2.64 1.94 1.25 1.15 1.23 0.60 0.44 15.26
City: SACO 1 NNW
State: MT
ID: USC00247265
Lat: 48.4661
Long: -107.3528
County: Phillips
Elev: 2185 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 26.8 32.2 44.9 59.9 69.2 76.3 84.2 83.2 71.7 59.0 42.0 29.1 56.6
Mean 13.6 19.1 31.4 44.4 54.7 63.2 69.5 67.9 56.0 43.6 28.8 16.1 42.5
Minimum 0.4 6.1 17.8 29.0 40.3 50.2 54.9 52.6 40.2 28.3 15.6 3.1 28.3
CDD 0 0 0 <0.5 8 59 163 136 16 <0.5 0 0 382
HDD 1593 1284 1043 617 326 111 22 46 287 662 1086 1516 8593
Precip 0.36 0.28 0.47 0.88 1.97 2.35 1.53 0.98 1.20 0.81 0.51 0.43 11.77
City: SAINT IGNATIUS
State: MT
ID: USC00247286
Lat: 47.3150
Long: -114.0983
County: Lake
Elev: 2915 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.8 40.9 51.1 60.1 68.6 75.9 85.4 85.1 73.8 59.2 44.0 34.8 59.7
Mean 29.2 31.5 39.4 46.9 54.4 61.2 68.0 67.3 58.1 46.6 35.5 27.5 47.2
Minimum 21.5 22.0 27.8 33.7 40.2 46.5 50.7 49.4 42.4 33.9 27.0 20.3 34.7
CDD 0 0 <0.5 <0.5 7 37 136 115 16 <0.5 0 0 310
HDD 1111 939 792 543 335 151 41 45 223 572 885 1161 6799
Precip 0.76 0.91 1.07 1.55 2.59 2.62 1.24 1.24 1.38 1.20 1.23 1.05 16.84
Snow 8.9 6.2 5.1 1.2 0.2 0.0 0.0 0.0 0.0 0.4 4.5 9.4 35.9
City: SAINT REGIS 1 NE
State: MT
ID: USC00247318
Lat: 47.3036
Long: -115.0908
County: Mineral
Elev: 2660 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.1 40.7 50.6 59.6 68.8 76.9 85.8 86.0 74.5 58.6 42.2 32.9 59.4
Mean 27.9 31.3 38.6 45.6 52.9 60.4 66.1 65.6 56.4 44.9 34.3 26.1 45.9
Minimum 20.8 21.9 26.6 31.6 37.0 43.8 46.4 45.2 38.2 31.2 26.5 19.3 32.4
CDD 0 0 0 <0.5 3 25 92 82 10 0 0 0 212
HDD 1148 944 818 582 378 164 58 64 269 623 919 1206 7174
Precip 1.64 1.52 1.04 1.45 1.96 1.74 1.01 1.12 1.25 1.73 2.22 2.12 18.80
Snow 12.2 10.5 5.5 0.6 0.0 0.0 0.0 0.0 0.0 0.3 9.0 16.5 54.6
City: SAND CREEK
State: MT
ID: USC00247342
Lat: 47.5775
Long: -108.7272
County: Fergus
Elev: 2910 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.8 36.4 45.2 56.6 65.9 73.9 83.7 83.1 71.0 57.9 43.2 32.0 56.8
Mean 20.5 24.7 33.6 44.5 53.9 62.5 70.1 68.8 56.8 44.4 30.9 20.0 44.3
Minimum 9.2 12.9 22.0 32.4 41.8 51.0 56.6 54.5 42.6 30.9 18.6 7.9 31.8
CDD 0 0 0 <0.5 2 45 184 154 32 <0.5 0 0 417
HDD 1380 1130 973 615 348 121 25 36 278 639 1023 1396 7964
Precip 0.42 0.32 0.92 1.38 2.46 2.63 1.85 1.37 1.23 0.97 0.65 0.51 14.71
City: SAVAGE
State: MT
ID: USC00247382
Lat: 47.4536
Long: -104.3378
County: Richland
Elev: 1975 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.0 34.2 46.2 61.0 71.3 80.0 87.9 87.2 75.5 60.1 42.0 29.5 58.7
Mean 17.3 22.8 33.8 46.6 57.1 66.0 72.6 71.3 60.1 46.7 31.3 19.1 45.5
Minimum 6.5 11.4 21.4 32.1 42.9 52.1 57.4 55.4 44.7 33.3 20.7 8.6 32.3
CDD 0 0 <0.5 2 21 102 247 218 44 1 0 0 635
HDD 1480 1182 967 555 266 70 10 23 191 568 1009 1424 7746
Precip 0.36 0.26 0.60 1.10 2.17 2.83 2.28 1.21 1.20 1.15 0.57 0.42 14.15
Snow 5.5 5.0 4.7 2.9 0.8 0.0 0.0 0.0 0.1 1.6 3.7 7.4 31.7
City: SCOBEY 4 NW
State: MT
ID: USC00247425
Lat: 48.8308
Long: -105.4761
County: Daniels
Elev: 2374 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.1 28.6 40.6 58.3 68.1 76.8 84.0 84.3 72.0 57.1 38.3 25.3 54.8
Mean 11.2 16.7 28.7 43.0 53.3 62.2 67.7 67.0 55.1 42.4 26.0 13.5 40.7
Minimum -0.7 4.9 16.9 27.7 38.6 47.7 51.4 49.7 38.2 27.6 13.7 1.7 26.5
CDD 0 0 <0.5 <0.5 9 54 130 127 17 <0.5 0 0 337
HDD 1668 1351 1124 660 370 136 46 65 314 703 1170 1596 9203
Precip 0.34 0.19 0.51 0.81 1.95 2.83 2.06 1.47 0.97 0.75 0.34 0.29 12.51
City: SEELEY LAKE RS
State: MT
ID: USC00247448
Lat: 47.2142
Long: -113.5203
County: Missoula
Elev: 4100 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.9 37.5 46.0 54.9 65.0 72.7 83.2 83.0 72.5 57.6 39.5 30.1 56.3
Mean 22.0 25.3 33.5 41.1 49.9 57.0 63.8 62.9 54.4 43.3 30.6 21.0 42.1
Minimum 12.1 13.0 20.9 27.4 34.8 41.2 44.4 42.8 36.2 29.1 21.8 11.9 28.0
CDD 0 0 0 <0.5 2 10 58 45 5 <0.5 0 0 120
HDD 1333 1113 978 716 470 252 95 110 324 671 1030 1364 8456
Precip 2.13 1.59 1.35 1.10 1.95 2.43 1.14 1.20 1.40 1.56 2.29 2.05 20.19
Snow 28.8 18.0 13.8 3.2 0.6 0.3 0.0 0.0 0.0 1.8 16.7 29.5 112.7
City: SHELBY
State: MT
ID: USC00247500
Lat: 48.5042
Long: -111.8553
County: Toole
Elev: 3325 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.3 39.0 46.5 57.4 66.8 74.4 82.9 82.6 71.0 58.9 43.2 33.8 57.7
Mean 21.0 26.0 33.4 43.3 52.8 60.3 67.1 65.8 55.7 44.6 31.2 21.8 43.7
Minimum 7.7 13.0 20.3 29.2 38.7 46.3 51.3 49.0 40.3 30.3 19.3 9.8 29.7
CDD 0 0 0 <0.5 5 23 109 95 11 <0.5 0 0 243
HDD 1364 1092 979 651 385 162 45 70 291 633 1012 1339 8023
Precip 0.35 0.31 0.69 1.16 1.71 2.66 1.47 1.18 1.20 0.52 0.33 0.47 12.05
City: SHONKIN 7 S
State: MT
ID: USC00247540
Lat: 47.5319
Long: -110.5769
County: Chouteau
Elev: 4300 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.1 38.6 44.9 53.0 62.3 70.2 79.5 80.3 68.5 56.3 43.5 36.9 56.0
Mean 27.9 29.7 35.4 43.0 51.7 59.1 66.3 66.3 56.6 46.0 35.1 28.7 45.6
Minimum 18.7 20.9 25.8 33.1 41.1 48.1 53.1 52.4 44.7 35.7 26.8 20.5 35.2
CDD 0 0 <0.5 <0.5 6 26 109 118 33 2 <0.5 0 295
HDD 1150 987 919 659 418 202 69 76 285 591 896 1125 7377
Precip 1.00 0.90 1.76 2.80 4.38 4.70 2.09 1.83 2.81 1.66 1.21 0.93 26.07
Snow 15.5 18.6 23.1 22.1 9.4 0.5 0.0 0.2 1.7 10.4 13.6 21.8 136.9
City: SIDNEY
State: MT
ID: USC00247560
Lat: 47.7283
Long: -104.1467
County: Richland
Elev: 1931 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 27.3 33.3 46.2 62.0 72.3 79.7 86.9 86.5 74.9 59.9 41.8 28.9 58.4
Mean 17.3 22.7 34.1 47.3 58.0 66.1 72.1 71.1 60.0 46.9 31.6 19.2 45.6
Minimum 7.4 12.2 22.1 32.6 43.6 52.5 57.3 55.7 45.0 33.9 21.5 9.5 32.9
CDD 0 0 <0.5 2 27 101 230 213 44 1 0 0 618
HDD 1477 1183 956 533 245 68 10 24 196 563 1000 1420 7675
Precip 0.41 0.33 0.60 1.05 2.03 2.80 2.52 1.16 1.25 1.10 0.55 0.52 14.32
Snow 7.0 5.2 3.6 2.2 1.0 0.0 0.0 0.0 0.4 1.8 3.5 7.8 32.5
City: SIMMS 1 NE
State: MT
ID: USC00247618
Lat: 47.5061
Long: -111.9200
County: Cascade
Elev: 3590 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.32 0.34 0.61 1.33 2.02 2.37 1.33 1.41 1.19 0.66 0.42 0.40 12.40
Snow 6.0 6.0 7.5 6.8 1.5 0.6 0.0 0.2 0.8 2.9 5.9 6.8 45.0
City: SIMPSON 6 N WILDHORSE
State: MT
ID: USC00247620
Lat: 48.9992
Long: -110.2147
County: Hill
Elev: 2815 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.1 33.0 44.6 59.6 70.1 77.6 86.9 85.6 73.7 59.6 41.4 29.2 57.6
Mean 15.4 20.1 31.3 43.7 53.7 61.6 68.4 67.2 56.2 43.6 28.1 16.3 42.2
Minimum 2.8 7.2 18.0 27.8 37.2 45.6 49.9 48.8 38.7 27.7 14.8 3.5 26.9
CDD 0 0 0 <0.5 8 42 141 125 18 <0.5 0 0 335
HDD 1536 1257 1045 639 360 144 36 57 282 662 1107 1508 8633
Precip 0.36 0.25 0.50 0.66 1.97 2.16 1.29 1.41 1.21 0.50 0.40 0.34 11.05
Snow 6.5 4.1 5.4 2.5 0.8 0.0 0.0 0.0 0.1 1.2 3.9 4.8 29.3
City: SONNETTE 2 WNW
State: MT
ID: USC00247740
Lat: 45.4183
Long: -105.8683
County: Powder River
Elev: 3900 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.9 36.7 45.2 54.9 63.9 73.4 83.3 83.0 71.0 56.8 43.1 33.0 56.6
Mean 21.3 24.1 32.4 41.4 50.5 59.3 67.4 66.5 55.5 42.9 30.3 20.6 42.8
Minimum 8.6 11.6 19.6 27.9 37.1 45.3 51.5 50.0 39.9 29.0 17.5 8.2 28.9
CDD 0 0 0 <0.5 3 32 124 111 18 <0.5 0 0 288
HDD 1356 1144 1011 708 453 201 49 65 304 685 1041 1376 8393
Precip 0.40 0.49 0.91 1.69 2.60 2.71 1.62 1.00 1.18 1.29 0.52 0.46 14.87
City: SPRINGDALE
State: MT
ID: USC00247800
Lat: 45.7375
Long: -110.2256
County: Park
Elev: 4221 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.53 0.45 0.82 1.63 2.61 2.23 1.36 0.95 1.17 1.29 0.54 0.55 14.13
Snow 1.3 2.8 3.5 1.3 0.9 0.0 0.0 0.0 0.4 0.5 1.7 1.5 13.9
City: ST. MARY 1 SSW
State: MT
ID: USW00004130
Lat: 48.7411
Long: -113.4331
County: Glacier
Elev: 4555 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.8 35.4 39.0 48.1 57.1 65.1 73.7 73.9 63.8 51.8 38.7 30.9 50.9
Mean 24.2 25.1 30.8 38.4 46.8 53.5 60.3 59.7 51.6 42.1 31.6 23.6 40.7
Minimum 16.6 14.7 22.6 28.8 36.5 41.9 46.9 45.4 39.3 32.4 24.4 16.2 30.6
CDD 0 0 0 0 0 <0.5 15 12 1 <0.5 0 0 27
HDD 1265 1119 1060 797 564 345 161 178 404 710 1004 1285 8890
Precip 1.83 1.64 1.98 1.72 2.89 3.30 2.11 1.31 2.01 1.40 2.44 1.62 24.25
City: ST MARIE
State: MT
ID: USW00094010
Lat: 48.4089
Long: -106.5144
County: Valley
Elev: 2756 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 24.5 29.6 42.4 57.3 67.8 75.2 85.1 84.4 71.5 57.7 39.6 26.3 55.2
Mean 15.4 20.1 31.7 44.6 54.6 63.1 71.2 70.3 58.5 45.6 30.3 17.4 43.7
Minimum 6.3 10.6 21.0 31.8 41.4 50.9 57.4 56.1 45.5 33.6 20.9 8.4 32.1
CDD 0 0 0 <0.5 9 60 210 198 40 1 0 0 518
HDD 1538 1257 1032 614 331 119 16 35 235 601 1042 1477 8298
Precip 0.42 0.21 0.42 0.80 2.10 2.67 1.80 1.27 1.10 0.72 0.35 0.27 12.13
City: ST MARY
State: MT
ID: USC00247292
Lat: 48.7383
Long: -113.4294
County: Glacier
Elev: 4560 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.2 35.7 41.7 50.9 60.4 68.1 77.6 77.8 66.4 53.2 37.9 31.3 52.9
Mean 23.5 26.2 31.8 39.5 48.1 54.9 62.4 61.7 52.5 42.8 30.6 23.3 41.5
Minimum 14.7 16.8 21.9 28.1 35.8 41.8 47.1 45.5 38.6 32.5 23.2 15.2 30.2
CDD 0 0 0 <0.5 1 6 44 40 5 <0.5 0 0 95
HDD 1288 1085 1029 765 525 307 126 144 380 687 1033 1294 8663
Precip 2.20 1.95 1.69 1.93 2.88 3.37 1.53 1.63 2.18 2.05 2.47 2.21 26.09
Snow 15.5 18.6 15.9 13.2 4.8 1.0 0.0 0.0 1.7 8.5 17.8 20.8 117.8
City: STANFORD
State: MT
ID: USC00247864
Lat: 47.1547
Long: -110.2239
County: Judith Basin
Elev: 4860 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.4 39.6 46.1 55.2 63.9 72.1 81.4 81.2 70.4 58.4 44.9 37.2 57.5
Mean 27.0 28.2 34.5 42.8 51.2 59.2 66.8 66.3 56.6 45.8 33.9 26.1 44.9
Minimum 15.6 16.8 22.9 30.4 38.5 46.2 52.1 51.4 42.7 33.1 22.9 14.9 32.4
CDD 0 0 0 <0.5 4 28 112 109 25 1 0 0 279
HDD 1178 1030 945 666 432 203 58 69 279 598 933 1207 7598
Precip 0.53 0.48 0.99 1.71 2.77 2.74 1.87 1.77 1.51 1.10 0.61 0.67 16.75
City: STEVENSVILLE
State: MT
ID: USC00247894
Lat: 46.5136
Long: -114.0911
County: Ravalli
Elev: 3375 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 37.2 42.8 53.0 61.6 70.4 77.9 87.3 86.3 75.7 61.3 44.8 34.4 61.2
Mean 28.0 31.8 39.7 46.6 54.6 61.7 68.1 66.8 57.8 46.5 34.7 25.8 46.9
Minimum 18.9 20.8 26.4 31.7 38.9 45.6 48.9 47.3 39.8 31.7 24.7 17.2 32.7
CDD 0 0 0 <0.5 7 38 132 99 12 <0.5 0 0 288
HDD 1145 930 784 551 328 135 36 44 230 574 908 1215 6878
Precip 0.91 0.80 0.78 0.94 1.52 1.54 0.86 1.13 1.03 0.78 1.09 1.03 12.41
Snow 4.3 3.7 2.0 0.2 0.0 0.0 0.0 0.0 0.0 0.1 2.1 6.6 19.0
City: SULA 14 NE
State: MT
ID: USC00247967
Lat: 45.9106
Long: -113.7383
County: Ravalli
Elev: 5160 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 32.8 37.6 45.5 54.2 63.2 71.5 82.2 81.4 70.8 57.0 40.7 29.9 55.7
Mean 20.8 24.1 32.2 39.4 47.3 54.3 61.2 59.9 51.0 41.4 29.1 18.8 40.0
Minimum 8.9 10.6 18.8 24.6 31.3 37.1 40.2 38.4 31.1 25.8 17.5 7.7 24.4
CDD 0 0 0 <0.5 1 4 26 17 <0.5 0 0 0 48
HDD 1369 1145 1018 768 551 325 144 176 422 732 1077 1432 9158
Precip 1.47 0.89 1.28 1.56 2.15 2.45 1.31 1.39 1.25 1.02 1.41 1.75 17.93
City: SULA 3 ENE
State: MT
ID: USC00247964
Lat: 45.8478
Long: -113.9269
County: Ravalli
Elev: 4475 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.3 39.6 47.9 55.4 63.7 71.9 81.6 80.9 72.0 58.5 42.3 31.9 56.8
Mean 23.7 27.3 35.1 41.5 48.6 55.8 62.0 60.8 52.7 42.6 31.3 21.5 42.0
Minimum 13.1 15.1 22.4 27.5 33.6 39.8 42.5 40.6 33.4 26.7 20.3 11.1 27.2
CDD 0 0 0 0 <0.5 4 29 15 1 0 0 0 49
HDD 1280 1054 925 706 507 279 120 147 370 694 1011 1348 8442
Precip 0.90 0.71 1.04 1.67 2.29 2.48 1.27 1.34 1.24 1.09 1.20 0.94 16.17
Snow 5.9 3.2 4.6 1.4 0.5 0.0 0.0 0.0 0.4 0.5 4.2 6.1 26.8
City: SUMMIT
State: MT
ID: USC00247978
Lat: 48.3164
Long: -113.3542
County: Glacier
Elev: 5233 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.2 32.8 38.2 47.1 55.7 64.5 73.6 74.5 62.8 49.9 35.6 28.2 49.4
Mean 21.6 23.2 29.6 36.9 44.1 51.9 58.8 58.5 49.7 39.8 29.3 21.1 38.8
Minimum 13.9 13.6 21.0 26.7 32.5 39.2 44.0 42.5 36.5 29.6 22.9 14.0 28.1
CDD 0 0 0 0 0 <0.5 8 8 <0.5 <0.5 0 0 16
HDD 1347 1170 1097 843 648 395 201 209 461 783 1073 1361 9587
City: SUN RIVER 4 S
State: MT
ID: USC00248021
Lat: 47.4778
Long: -111.7406
County: Cascade
Elev: 3600 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 39.0 41.2 48.6 57.8 66.4 74.0 83.4 82.3 71.4 59.8 46.0 37.3 59.0
Mean 26.8 28.5 35.1 43.9 52.0 59.8 66.5 65.2 55.9 46.0 34.4 25.7 45.1
Minimum 14.6 15.9 21.6 30.0 37.7 45.5 49.7 48.2 40.4 32.3 22.8 14.0 31.1
CDD 0 0 0 1 4 26 100 83 12 1 0 0 226
HDD 1184 1021 927 634 405 183 52 75 285 589 918 1220 7492
Precip 0.37 0.38 0.70 1.41 2.14 2.41 1.32 1.42 1.22 0.74 0.47 0.37 12.95
Snow 4.9 3.1 5.1 2.8 0.8 0.0 0.0 0.1 0.1 1.6 3.8 5.0 27.3
City: SUNBURST 8 E
State: MT
ID: USC00247996
Lat: 48.8869
Long: -111.7275
County: Toole
Elev: 3700 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.6 34.8 43.1 55.1 64.8 71.7 80.2 79.8 68.9 56.1 40.4 31.0 54.9
Mean 22.0 24.5 32.6 43.0 52.1 59.2 66.0 65.7 55.8 44.3 30.9 21.8 43.3
Minimum 12.4 14.3 22.1 30.8 39.4 46.7 51.8 51.5 42.7 32.6 21.4 12.6 31.6
CDD 0 0 0 <0.5 6 26 102 102 22 1 0 0 260
HDD 1333 1132 1004 662 406 200 71 82 298 641 1023 1339 8193
Precip 0.44 0.39 0.85 1.07 2.07 3.09 1.38 1.41 1.35 0.75 0.55 0.52 13.87
City: SUPERIOR
State: MT
ID: USW00024159
Lat: 47.1928
Long: -114.8903
County: Mineral
Elev: 2710 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.0 42.6 52.6 61.1 69.8 77.2 86.8 86.7 75.6 60.4 42.9 33.0 60.5
Mean 29.0 32.6 40.3 47.0 54.8 61.7 68.7 68.2 58.6 47.2 35.2 26.8 47.6
Minimum 22.0 22.7 28.1 32.9 39.7 46.2 50.7 49.8 41.7 34.0 27.5 20.6 34.7
CDD 0 0 0 <0.5 9 43 153 138 21 <0.5 0 0 363
HDD 1116 906 764 540 326 142 37 37 212 552 894 1184 6710
Precip 1.07 1.09 1.14 1.26 1.95 2.03 0.99 1.32 1.17 1.21 1.95 1.30 16.48
City: SWAN LAKE
State: MT
ID: USC00248087
Lat: 47.9203
Long: -113.8394
County: Lake
Elev: 3100 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 31.1 36.6 45.8 55.5 64.7 71.2 80.9 79.9 69.2 55.2 38.9 29.6 55.0
Mean 23.6 26.5 34.8 42.6 50.8 57.0 63.4 61.9 53.2 42.4 31.1 22.8 42.6
Minimum 16.2 16.3 23.7 29.8 36.9 42.8 45.8 43.9 37.1 29.6 23.4 15.9 30.2
CDD 0 0 0 <0.5 1 9 48 32 1 0 0 0 91
HDD 1282 1079 938 670 441 249 99 128 357 701 1016 1310 8269
Precip 2.60 2.10 1.98 1.85 2.59 3.00 1.40 1.38 1.72 2.07 3.19 2.87 26.75
City: SWEETGRASS
State: MT
ID: USC00248093
Lat: 48.9972
Long: -111.9642
County: Toole
Elev: 3510 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.8 34.9 43.0 54.1 65.0 73.2 80.8 80.8 69.6 56.7 39.8 30.6 55.1
Mean 19.6 23.5 31.5 41.9 51.9 59.8 66.2 65.6 55.6 43.9 29.2 20.2 42.5
Minimum 8.3 12.1 20.1 29.7 38.7 46.5 51.6 50.3 41.5 31.2 18.5 9.8 29.9
CDD 0 0 0 <0.5 4 27 103 96 16 1 0 0 248
HDD 1409 1162 1037 693 412 181 66 79 300 654 1075 1389 8457
City: TERRY 21 NNW
State: MT
ID: USC00248169
Lat: 47.0700
Long: -105.4953
County: Prairie
Elev: 3142 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.6 32.3 42.9 55.7 65.3 74.3 83.3 82.7 70.7 56.0 40.8 29.1 55.3
Mean 17.8 21.4 31.3 42.2 52.0 61.0 68.7 67.8 56.2 43.2 29.5 18.3 42.6
Minimum 7.1 10.5 19.7 28.8 38.8 47.7 54.0 52.9 41.7 30.3 18.2 7.6 29.9
CDD 0 0 0 <0.5 6 43 149 139 23 <0.5 0 0 360
HDD 1462 1221 1045 683 407 163 36 52 287 678 1065 1446 8544
Precip 0.42 0.28 0.55 1.30 2.33 2.57 2.06 1.01 1.28 1.03 0.45 0.45 13.73
City: TERRY
State: MT
ID: USC00248165
Lat: 46.7939
Long: -105.3022
County: Prairie
Elev: 2248 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 28.3 34.3 45.7 58.7 68.5 78.2 87.2 86.9 74.3 59.1 43.0 30.6 58.0
Mean 16.6 22.3 33.2 44.9 55.1 64.8 72.1 70.8 58.6 45.0 30.9 18.7 44.5
Minimum 5.0 10.2 20.8 31.1 41.8 51.3 57.0 54.6 42.9 30.9 18.7 6.7 31.0
CDD 0 0 0 1 16 93 239 212 41 1 0 0 603
HDD 1499 1197 984 604 321 101 20 34 233 621 1024 1437 8074
Precip 0.29 0.22 0.44 1.22 2.15 2.10 1.72 1.25 1.15 0.86 0.31 0.27 11.98
City: THOMPSON FALLS PH
State: MT
ID: USC00248211
Lat: 47.5933
Long: -115.3594
County: Sanders
Elev: 2380 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.4 42.6 52.4 61.9 70.6 77.4 87.7 88.4 77.3 60.7 43.4 34.4 61.2
Mean 30.5 34.0 41.3 48.5 56.2 62.7 69.9 69.8 60.5 48.2 36.8 29.0 49.0
Minimum 24.6 25.3 30.2 35.0 41.7 48.0 52.2 51.1 43.8 35.7 30.1 23.7 36.9
CDD 0 0 0 <0.5 13 51 180 173 34 <0.5 0 0 453
HDD 1069 869 735 497 288 120 27 26 168 521 847 1114 6282
Precip 2.32 1.83 1.77 1.60 2.22 2.29 1.06 1.08 1.13 1.85 2.74 2.35 22.24
Snow 6.5 2.5 1.1 0.2 0.0 0.0 0.0 0.0 0.0 0.1 3.8 10.0 24.2
City: TIBER DAM
State: MT
ID: USC00248233
Lat: 48.3100
Long: -111.0878
County: Liberty
Elev: 2850 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.0 37.8 48.6 59.8 69.5 77.0 85.2 84.8 73.5 61.4 45.1 33.2 59.2
Mean 21.3 25.1 35.1 45.0 54.7 62.5 68.9 67.7 57.7 46.4 32.8 21.7 45.0
Minimum 9.7 12.4 21.6 30.3 39.8 47.9 52.5 50.5 41.8 31.5 20.4 10.1 30.8
CDD 0 0 0 1 9 49 149 126 20 <0.5 <0.5 0 354
HDD 1353 1117 927 599 330 125 30 44 240 575 968 1344 7653
Precip 0.30 0.18 0.53 0.82 1.50 2.32 1.08 1.19 0.99 0.54 0.38 0.35 10.18
City: TOWNSEND
State: MT
ID: USC00248324
Lat: 46.3308
Long: -111.5378
County: Broadwater
Elev: 3840 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.0 40.2 50.1 59.1 67.6 74.7 82.9 82.5 72.3 59.7 44.3 33.4 58.6
Mean 24.3 28.3 36.9 45.1 53.4 60.6 67.2 65.9 56.4 45.6 33.2 22.9 45.1
Minimum 13.6 16.3 23.8 31.1 39.3 46.6 51.4 49.4 40.6 31.6 22.2 12.3 31.6
CDD 0 0 0 <0.5 4 30 109 88 12 <0.5 <0.5 0 243
HDD 1262 1029 870 597 362 160 43 58 269 600 953 1307 7509
Precip 0.24 0.21 0.48 0.81 1.77 2.25 1.37 1.20 0.85 0.58 0.34 0.30 10.40
Snow 3.8 3.2 4.3 2.0 0.2 0.0 0.0 0.0 0.1 1.0 3.2 4.8 22.6
City: TRIDENT
State: MT
ID: USC00248363
Lat: 45.9469
Long: -111.4747
County: Gallatin
Elev: 4036 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.9 40.4 49.7 59.0 68.6 76.8 86.7 85.9 74.7 60.9 44.1 34.2 59.9
Mean 24.8 28.7 37.3 45.2 54.2 62.0 69.3 67.8 57.8 46.3 32.8 23.3 45.9
Minimum 13.7 17.0 24.9 31.5 39.8 47.2 51.9 49.7 40.9 31.8 21.4 12.5 31.9
CDD 0 0 0 <0.5 6 45 161 126 18 1 0 0 357
HDD 1246 1016 859 593 340 135 28 39 234 579 967 1291 7328
Precip 0.45 0.24 0.70 1.54 2.47 2.27 1.68 1.04 1.16 0.99 0.58 0.58 13.70
Snow 7.2 3.0 7.2 2.9 0.5 0.0 0.0 0.0 0.4 1.3 3.4 6.1 32.0
City: TROUT CREEK RS
State: MT
ID: USC00248380
Lat: 47.8669
Long: -115.6278
County: Sanders
Elev: 2356 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.5 39.7 49.0 58.3 67.1 73.7 83.4 83.4 72.9 57.6 40.7 31.7 57.7
Mean 27.8 31.4 38.4 45.1 52.7 58.8 65.3 64.9 56.6 45.7 34.9 26.5 45.8
Minimum 22.1 23.1 27.8 31.9 38.4 43.8 47.2 46.4 40.3 33.8 29.0 21.3 33.8
CDD 0 0 0 <0.5 5 18 82 73 10 <0.5 0 0 188
HDD 1153 941 825 597 384 205 73 77 262 598 904 1193 7213
Precip 3.37 2.30 2.26 1.90 2.36 2.36 1.19 1.18 1.27 2.38 3.80 3.50 27.87
Snow 17.7 8.2 2.7 0.3 0.0 0.0 0.0 0.0 0.0 0.0 6.2 21.1 56.2
City: TROY 18 N
State: MT
ID: USC00248395
Lat: 48.7167
Long: -115.8833
County: Lincoln
Elev: 2715 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.9 41.0 49.3 59.3 68.9 75.3 84.5 85.0 73.7 57.6 39.9 31.4 58.4
Mean 27.2 31.2 37.6 45.1 53.5 59.7 65.8 65.9 57.1 45.0 33.4 25.6 45.7
Minimum 20.6 21.4 25.9 30.8 38.0 44.1 47.2 46.9 40.4 32.4 26.9 19.8 32.9
CDD 0 0 0 <0.5 5 22 90 88 12 <0.5 0 0 217
HDD 1170 946 850 599 363 182 63 58 251 620 948 1221 7271
City: TROY
State: MT
ID: USC00248390
Lat: 48.4806
Long: -115.9061
County: Lincoln
Elev: 1929 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.0 40.3 51.2 61.3 70.0 77.1 86.7 86.7 75.6 58.9 42.0 32.8 59.8
Mean 28.0 31.7 39.6 46.9 55.0 61.5 67.9 67.2 58.3 46.5 35.6 27.2 47.2
Minimum 21.9 23.1 27.9 32.6 39.9 45.8 49.0 47.7 41.1 34.1 29.2 21.6 34.6
CDD 0 0 0 <0.5 8 38 127 115 19 <0.5 0 0 307
HDD 1149 932 789 542 319 144 39 46 218 574 882 1172 6806
Precip 2.84 1.87 1.84 1.61 1.88 2.40 1.11 1.04 1.24 2.11 3.65 2.80 24.39
Snow 4.6 4.8 1.1 0.1 0.0 0.0 0.0 0.0 0.0 0.2 3.4 9.8 24.0
City: TURNER 11N
State: MT
ID: USC00248415
Lat: 48.9992
Long: -108.3894
County: Blaine
Elev: 2982 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 26.5 31.5 42.5 57.7 67.3 75.5 83.2 83.5 71.6 57.7 39.5 27.6 55.5
Mean 16.0 20.3 31.1 43.7 53.3 61.7 67.9 67.3 56.6 44.2 29.0 17.3 42.5
Minimum 5.5 9.1 19.7 29.8 39.4 47.9 52.6 51.1 41.5 30.8 18.4 7.1 29.5
CDD 0 0 0 1 8 45 130 127 21 <0.5 0 0 333
HDD 1519 1252 1051 638 370 144 40 56 275 644 1081 1477 8547
Precip 0.28 0.24 0.50 0.60 2.07 2.67 1.67 1.13 1.27 0.58 0.39 0.36 11.76
Snow 6.0 5.1 3.1 1.3 1.2 0.1 0.0 0.0 0.0 0.4 5.1 2.2 24.5
City: TWIN BRIDGES
State: MT
ID: USC00248430
Lat: 45.5472
Long: -112.3261
County: Madison
Elev: 4625 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.9 40.4 49.5 58.1 67.0 75.2 84.1 82.8 72.9 60.0 44.1 33.8 58.7
Mean 24.4 27.7 35.8 43.1 51.4 59.0 65.2 63.1 54.4 43.7 31.8 22.6 43.6
Minimum 12.9 15.0 22.0 28.2 35.8 42.8 46.4 43.3 35.9 27.5 19.5 11.3 28.4
CDD 0 0 0 <0.5 1 14 66 33 2 <0.5 0 0 115
HDD 1259 1044 907 655 423 194 58 93 320 659 996 1316 7923
Precip 0.23 0.19 0.46 0.92 1.77 2.02 1.21 1.03 0.90 0.69 0.39 0.28 10.09
City: VALENTINE
State: MT
ID: USC00248498
Lat: 47.3389
Long: -108.4983
County: Fergus
Elev: 2905 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.3 37.6 47.4 58.0 67.2 76.1 85.6 85.0 72.9 59.9 45.3 34.3 58.7
Mean 19.6 23.9 33.7 43.9 53.3 62.3 69.4 68.4 56.6 44.4 31.2 20.6 44.0
Minimum 5.9 10.2 19.9 29.8 39.5 48.4 53.2 51.7 40.2 28.9 17.1 6.9 29.4
CDD 0 0 0 <0.5 8 53 169 152 21 <0.5 0 0 404
HDD 1407 1151 972 633 369 135 33 48 275 639 1014 1376 8053
Precip 0.45 0.33 0.68 1.20 2.71 2.26 1.81 1.27 1.17 0.95 0.47 0.53 13.83
Snow 6.9 5.1 4.7 2.3 0.5 0.0 0.0 0.0 0.0 2.0 4.4 7.3 33.2
City: VALIER
State: MT
ID: USC00248501
Lat: 48.3089
Long: -112.2511
County: Pondera
Elev: 3810 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.0 38.6 45.8 55.9 65.0 72.3 80.9 80.8 70.4 58.1 42.8 34.4 56.8
Mean 24.7 27.0 33.8 43.2 52.1 59.6 66.4 65.7 56.4 45.6 32.6 24.3 44.4
Minimum 13.4 15.3 21.9 30.5 39.2 46.8 51.9 50.6 42.4 33.2 22.4 14.1 31.9
CDD 0 0 0 <0.5 4 24 100 91 18 1 0 0 238
HDD 1249 1065 966 654 404 187 57 70 276 601 972 1263 7764
Precip 0.22 0.25 0.56 1.03 2.18 2.82 1.28 1.37 1.31 0.62 0.32 0.24 12.20
City: VIDA 6 NE
State: MT
ID: USC00248569
Lat: 47.8800
Long: -105.3686
County: McCone
Elev: 2284 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 26.9 32.2 44.2 58.8 69.0 77.3 85.8 85.3 72.7 58.1 41.7 29.0 56.9
Mean 15.8 20.8 32.4 44.9 55.2 63.7 70.7 69.9 57.9 45.0 30.3 17.9 43.8
Minimum 4.6 9.4 20.6 31.0 41.4 50.1 55.6 54.5 43.1 31.9 18.8 6.8 30.8
CDD 0 0 0 1 14 70 198 189 35 1 0 0 507
HDD 1527 1237 1011 604 317 109 21 38 248 621 1042 1460 8235
Precip 0.35 0.22 0.60 1.13 2.34 2.73 1.97 1.40 1.14 1.02 0.45 0.50 13.85
City: VIRGINIA CITY
State: MT
ID: USC00248597
Lat: 45.2925
Long: -111.9481
County: Madison
Elev: 5773 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 36.7 39.2 46.6 54.2 63.5 71.9 81.5 80.6 70.5 57.9 43.1 34.7 56.8
Mean 25.2 26.8 34.2 41.0 49.6 57.3 65.2 64.0 55.0 44.1 31.6 23.4 43.2
Minimum 13.6 14.5 21.7 27.8 35.7 42.6 49.0 47.3 39.5 30.2 20.2 12.2 29.6
CDD 0 0 0 0 1 12 75 53 6 <0.5 0 0 147
HDD 1235 1068 956 720 478 244 67 86 307 650 1000 1288 8100
Precip 0.69 0.53 0.98 1.49 2.36 2.55 1.47 1.40 1.03 1.18 0.84 0.78 15.30
Snow 10.6 7.4 10.0 9.8 3.9 0.4 0.0 0.0 0.8 3.3 9.2 12.2 67.6
City: WARRICK 2 NW
State: MT
ID: USC00248693
Lat: 48.0878
Long: -109.6453
County: Chouteau
Elev: 4250 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.81 0.58 0.86 1.52 2.66 3.68 1.70 1.49 1.35 0.97 0.91 0.89 17.42
Snow 12.8 9.2 9.5 10.1 2.5 0.0 0.0 0.0 0.3 3.2 7.6 12.7 67.9
City: WEBSTER 3 E
State: MT
ID: USC00248732
Lat: 46.0558
Long: -104.1853
County: Fallon
Elev: 3140 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.38 0.33 0.66 1.37 2.45 2.81 1.95 1.25 1.27 1.22 0.57 0.43 14.69
City: WEST GLACIER
State: MT
ID: USC00248809
Lat: 48.5003
Long: -113.9847
County: Flathead
Elev: 3154 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.5 35.0 43.2 54.0 64.5 71.7 80.0 79.3 67.5 52.3 37.3 28.8 53.8
Mean 24.4 26.9 33.9 42.3 51.3 58.0 64.2 63.2 53.4 42.2 31.4 23.3 43.0
Minimum 18.3 18.9 24.6 30.6 38.0 44.3 48.5 47.1 39.3 32.0 25.5 17.8 32.1
CDD 0 0 0 <0.5 1 12 61 47 3 <0.5 0 0 123
HDD 1259 1065 964 681 428 222 84 103 351 708 1008 1292 8165
Precip 3.23 1.98 2.08 1.93 2.64 3.47 1.70 1.30 2.05 2.49 3.27 3.01 29.15
Snow 29.5 16.8 13.6 2.9 0.3 0.0 0.0 0.0 0.0 1.7 17.9 34.3 117.0
City: WEST YELLOWSTONE GATEWAY
State: MT
ID: USC00248858
Lat: 44.6617
Long: -111.0975
County: Gallatin
Elev: 6700 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.5 32.5 41.0 52.3 61.3 69.1 79.7 79.0 69.0 52.7 36.1 27.0 52.5
Mean 18.0 17.8 25.7 36.6 45.8 52.5 59.9 58.9 50.2 38.5 25.1 15.1 37.1
Minimum 6.5 3.0 10.4 20.8 30.2 35.8 40.0 38.7 31.4 24.2 14.0 3.2 21.6
CDD 0 0 0 0 0 <0.5 19 10 2 0 0 0 31
HDD 1457 1323 1218 853 597 377 179 201 446 823 1199 1546 10219
City: WEST YELLOWSTONE
State: MT
ID: USC00248857
Lat: 44.6500
Long: -111.1000
County: Gallatin
Elev: 6659 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.1 29.2 37.5 46.5 58.6 67.7 77.3 77.1 66.4 50.1 31.7 22.0 49.0
Mean 12.5 15.2 24.6 33.6 43.7 51.8 58.6 57.1 48.0 35.6 20.9 10.5 34.4
Minimum 1.8 1.2 11.7 20.7 28.9 36.0 39.9 37.1 29.7 21.0 10.1 -0.9 19.9
CDD 0 0 0 0 0 1 4 2 <0.5 0 0 0 6
HDD 1629 1394 1253 942 659 395 202 247 508 913 1323 1688 11153
Precip 2.16 1.74 1.78 1.77 2.45 2.31 1.77 1.16 1.37 1.56 2.10 2.67 22.84
City: WESTBY
State: MT
ID: USC00248777
Lat: 48.8708
Long: -104.0500
County: Divide
Elev: 2120 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 19.2 24.7 37.0 54.4 65.5 73.6 80.2 80.7 68.8 54.0 35.4 22.1 51.4
Mean 8.4 14.0 26.0 41.1 52.7 61.5 67.2 66.3 54.3 41.0 25.0 11.8 39.2
Minimum -2.5 3.3 15.0 27.8 39.8 49.4 54.3 51.8 39.9 28.1 14.6 1.5 27.0
CDD 0 0 0 <0.5 7 44 118 116 16 <0.5 0 0 303
HDD 1756 1428 1209 717 390 150 49 78 336 743 1200 1649 9704
Precip 0.37 0.26 0.59 0.84 2.04 2.83 2.56 1.58 1.14 0.88 0.50 0.39 13.98
City: WESTERN AG RSCH CTR
State: MT
ID: USC00248783
Lat: 46.3286
Long: -114.0836
County: Ravalli
Elev: 3597 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 34.6 39.8 49.5 57.3 66.1 73.8 83.6 82.1 70.7 57.3 41.6 31.9 57.5
Mean 26.6 30.2 38.1 44.6 52.5 59.5 66.8 65.1 55.6 44.7 32.7 23.9 45.1
Minimum 18.7 20.6 26.8 31.9 38.8 45.1 50.0 48.1 40.5 32.0 23.8 16.0 32.8
CDD 0 0 0 <0.5 3 22 104 72 6 <0.5 0 0 208
HDD 1189 974 832 612 392 189 49 69 288 631 969 1272 7466
Precip 0.73 0.46 0.70 1.01 1.63 1.63 0.88 1.00 1.05 0.70 0.75 0.81 11.35
City: WHITE SULPHUR SPRNGS 2
State: MT
ID: USC00248930
Lat: 46.5436
Long: -110.9000
County: Meagher
Elev: 5040 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.8 36.5 44.6 53.8 63.0 71.3 81.0 81.1 69.7 56.8 41.3 32.5 55.5
Mean 23.7 25.6 32.9 40.7 49.2 57.0 64.6 63.8 54.0 43.1 30.9 22.4 42.4
Minimum 13.7 14.6 21.3 27.7 35.3 42.7 48.2 46.6 38.3 29.4 20.5 12.3 29.3
CDD 0 0 0 <0.5 1 13 71 58 6 <0.5 0 0 149
HDD 1279 1105 994 728 492 253 83 94 336 679 1023 1320 8385
Precip 0.39 0.38 0.78 1.38 2.08 2.29 1.46 1.24 1.15 0.83 0.50 0.51 12.99
City: WHITEFISH
State: MT
ID: USC00248902
Lat: 48.4081
Long: -114.3594
County: Flathead
Elev: 3100 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 29.3 34.5 43.5 54.3 63.4 70.4 80.3 79.9 68.0 53.2 37.4 28.2 53.6
Mean 22.5 25.2 33.1 42.1 50.8 57.7 64.9 64.0 53.6 41.8 30.6 21.9 42.4
Minimum 15.6 15.8 22.7 29.9 38.2 44.9 49.5 48.1 39.2 30.4 23.9 15.6 31.2
CDD 0 0 0 0 2 15 80 67 4 0 0 0 167
HDD 1319 1116 989 687 442 235 83 98 346 719 1030 1336 8400
Precip 1.74 1.29 1.26 1.46 2.23 3.23 1.66 1.23 1.45 1.13 1.89 1.98 20.55
Snow 17.0 8.4 7.2 1.7 0.0 0.0 0.0 0.0 0.0 0.3 7.6 22.8 65.0
City: WHITEWATER 18 NE
State: MT
ID: USC00248941
Lat: 48.9703
Long: -107.4222
County: Phillips
Elev: 2758 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.43 0.19 0.49 0.84 2.19 2.68 1.61 1.20 1.25 0.70 0.42 0.34 12.34
City: WHITEWATER
State: MT
ID: USC00248939
Lat: 48.7597
Long: -107.6250
County: Phillips
Elev: 2333 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.49 0.27 0.46 0.73 2.02 2.54 1.35 0.96 1.20 0.64 0.48 0.43 11.57
Snow 2.4 2.1 2.0 0.7 0.6 0.0 0.0 0.0 0.1 1.0 2.1 2.4 13.4
City: WIBAUX 2 E
State: MT
ID: USC00248957
Lat: 46.9878
Long: -104.1567
County: Wibaux
Elev: 2696 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 27.8 32.6 43.3 57.1 67.3 76.8 85.5 85.3 72.8 57.4 41.0 28.9 56.4
Mean 17.0 21.8 31.4 43.0 53.4 62.5 69.5 68.7 57.2 43.9 29.8 18.2 43.1
Minimum 6.1 11.0 19.4 29.0 39.5 48.2 53.4 52.1 41.6 30.3 18.6 7.5 29.8
CDD 0 0 <0.5 <0.5 8 58 168 160 32 <0.5 0 0 427
HDD 1489 1210 1043 659 368 133 31 45 266 656 1056 1451 8406
Precip 0.26 0.25 0.62 1.39 2.34 2.70 2.02 1.47 1.45 1.25 0.51 0.27 14.53
Snow 6.9 5.4 5.1 4.3 1.3 0.0 0.0 0.0 0.1 2.2 4.4 6.2 35.9
City: WILSALL 8 ENE
State: MT
ID: USC00249023
Lat: 46.0306
Long: -110.5056
County: Park
Elev: 5865 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.9 35.7 42.5 50.6 59.8 68.2 78.0 78.0 67.3 54.3 40.1 32.6 53.5
Mean 23.7 24.6 31.2 38.4 46.7 54.2 61.7 61.2 52.2 41.6 30.0 22.6 40.7
Minimum 13.5 13.4 19.9 26.1 33.6 40.1 45.4 44.3 37.1 28.9 19.8 12.5 28.0
CDD 0 0 0 0 <0.5 4 27 21 2 <0.5 0 0 55
HDD 1280 1132 1048 799 567 329 130 141 386 725 1051 1316 8906
Precip 0.81 0.73 1.36 2.15 3.29 3.46 1.85 1.63 1.55 1.43 1.06 0.83 20.15
Snow 12.7 10.8 16.7 14.6 4.1 0.1 0.0 0.1 1.5 3.8 10.0 13.1 87.5
City: WINIFRED
State: MT
ID: USC00249033
Lat: 47.5589
Long: -109.3758
County: Fergus
Elev: 3243 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 33.3 36.9 45.6 56.2 65.2 74.1 83.4 83.3 71.2 58.2 44.0 33.9 57.2
Mean 21.4 25.2 33.7 43.5 52.6 61.1 68.3 67.4 56.2 44.2 32.2 22.0 44.1
Minimum 9.5 13.4 21.7 30.8 40.1 48.2 53.1 51.5 41.2 30.2 20.3 10.1 30.9
CDD 0 0 0 <0.5 7 43 142 134 23 <0.5 0 0 351
HDD 1352 1116 972 645 390 159 42 60 287 645 986 1333 7986
Precip 0.58 0.36 0.74 1.38 2.77 2.90 1.85 1.60 1.36 1.07 0.54 0.57 15.72
City: WINNETT 6NNE
State: MT
ID: USC00249048
Lat: 47.0831
Long: -108.3164
County: Petroleum
Elev: 2865 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precip 0.41 0.39 0.67 1.37 2.68 2.49 1.77 1.64 1.00 1.01 0.55 0.57 14.55
City: WISDOM
State: MT
ID: USC00249067
Lat: 45.6178
Long: -113.4514
County: Beaverhead
Elev: 6060 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 27.3 30.5 40.0 50.1 59.9 68.5 78.8 78.0 68.2 54.4 36.7 25.5 51.6
Mean 14.6 15.9 26.2 35.3 44.0 51.9 58.0 55.9 47.4 37.2 24.0 13.3 35.4
Minimum 2.0 1.4 12.4 20.5 28.1 35.3 37.3 33.9 26.7 20.0 11.3 1.0 19.2
CDD 0 0 0 0 0 <0.5 6 1 <0.5 0 0 0 8
HDD 1561 1373 1203 891 651 393 221 282 527 862 1230 1604 10798
Precip 0.63 0.50 0.72 1.01 1.83 2.07 1.22 1.07 1.00 0.74 0.83 0.68 12.30
City: WISE RIVER 3 WNW
State: MT
ID: USC00249082
Lat: 45.8031
Long: -113.0136
County: Beaverhead
Elev: 5730 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.3 34.2 43.4 52.0 61.4 68.8 78.5 79.0 70.2 56.5 40.3 30.1 53.8
Mean 18.3 20.3 29.1 36.3 44.4 51.8 58.0 56.9 49.0 38.2 26.8 16.8 37.3
Minimum 6.3 6.3 14.7 20.5 27.5 34.8 37.5 34.9 27.8 19.9 13.2 3.5 20.7
CDD 0 0 0 0 0 <0.5 3 2 <0.5 0 0 0 4
HDD 1448 1253 1114 862 637 396 220 251 480 831 1148 1494 10134
Precip 0.49 0.39 0.57 0.84 1.65 1.84 1.38 1.18 1.10 0.90 0.91 0.67 11.92
City: WOLF POINT 29 ENE
State: MT
ID: USW00094060
Lat: 48.3083
Long: -105.1017
County: Roosevelt
Elev: 2085 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 24.9 29.5 42.3 58.2 68.0 77.3 85.0 84.8 73.2 57.3 40.2 27.4 55.8
Mean 13.2 18.3 30.3 43.6 54.0 62.9 69.4 68.6 56.5 42.7 27.6 15.0 41.9
Minimum 1.4 7.0 18.2 28.9 39.9 48.5 53.8 52.3 39.8 28.1 14.9 2.6 28.1
CDD 0 0 0 <0.5 10 46 163 157 26 1 <0.5 0 402
HDD 1607 1309 1077 644 352 109 26 48 281 692 1123 1550 8818
Precip 0.59 0.32 0.59 0.86 2.18 2.74 2.45 1.43 1.14 0.82 0.56 0.40 14.08
City: WOLF POINT 34 NE
State: MT
ID: USW00094059
Lat: 48.4886
Long: -105.2097
County: Roosevelt
Elev: 2643 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 23.5 28.0 39.4 56.3 65.3 73.9 81.3 81.4 70.1 54.4 37.8 26.1 53.2
Mean 15.2 19.4 30.3 44.5 53.9 62.9 69.3 68.8 58.2 44.2 29.2 17.6 42.9
Minimum 6.9 10.7 21.2 32.7 42.4 51.8 57.2 56.1 46.3 34.0 20.5 9.1 32.5
CDD 0 0 <0.5 1 10 54 162 165 44 2 <0.5 0 437
HDD 1544 1278 1075 616 356 118 31 49 248 647 1075 1469 8505
Precip 0.35 1.74 0.53 0.90 2.16 2.51 2.32 1.38 1.06 0.78 0.41 0.35 14.49
City: WOLF POINT INTL AP
State: MT
ID: USW00094017
Lat: 48.0944
Long: -105.5744
County: Roosevelt
Elev: 1980 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 24.1 30.1 43.4 59.1 69.5 77.6 86.4 85.5 73.8 58.1 40.5 26.7 56.4
Mean 11.9 17.8 30.6 43.8 54.2 63.3 70.4 69.2 57.1 43.7 27.7 15.0 42.2
Minimum -0.3 5.5 17.7 28.6 39.0 48.9 54.5 52.8 40.5 29.2 14.9 3.3 28.0
CDD 0 0 0 <0.5 9 55 189 168 27 <0.5 0 0 449
HDD 1646 1322 1068 635 342 108 20 40 263 662 1119 1550 8774
Precip 0.31 0.21 0.46 0.94 1.78 2.71 1.98 1.28 1.01 0.81 0.39 0.30 12.18
City: WOLF POINT
State: MT
ID: USC00249103
Lat: 48.1000
Long: -105.6483
County: Roosevelt
Elev: 2090 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 26.1 32.1 45.7 61.5 71.3 79.3 88.9 87.2 75.4 60.6 43.2 28.3 58.4
Mean 14.6 20.5 33.1 46.6 56.9 65.7 73.2 71.7 59.7 46.3 31.1 17.0 44.8
Minimum 3.1 8.9 20.5 31.7 42.6 52.0 57.6 56.2 43.9 32.0 19.1 5.7 31.2
CDD 0 0 0 2 24 102 266 231 46 2 0 0 674
HDD 1562 1246 989 554 273 83 11 24 207 582 1015 1488 8034
Precip 0.38 0.23 0.57 0.75 1.90 3.08 1.79 1.47 1.24 0.77 0.63 0.40 13.21
Snow 3.9 1.9 2.5 0.6 0.6 0.0 0.0 0.0 0.2 0.6 1.6 4.6 16.5
City: WYOLA 1 SW
State: MT
ID: USC00249175
Lat: 45.1217
Long: -107.4061
County: Big Horn
Elev: 3730 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.2 41.3 51.2 61.6 70.6 79.0 88.4 86.9 75.4 61.9 47.4 37.3 61.7
Mean 23.6 26.8 36.0 45.1 53.9 62.6 69.7 67.5 57.3 45.5 33.0 23.2 45.4
Minimum 9.0 12.2 20.9 28.6 37.1 46.2 50.9 48.0 39.2 29.0 18.5 9.2 29.2
CDD 0 0 0 <0.5 6 53 171 122 21 <0.5 0 0 373
HDD 1283 1071 897 597 352 125 27 46 252 607 961 1294 7512
Precip 0.45 0.53 0.99 1.82 2.90 2.36 1.47 0.70 1.52 1.58 0.81 0.60 15.73
City: YAAK 9NNE
State: MT
ID: USC00249187
Lat: 48.9653
Long: -115.6267
County: Lincoln
Elev: 3085 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 30.3 37.9 45.6 56.2 64.7 72.2 80.5 80.6 69.6 53.9 36.7 27.7 54.7
Mean 21.9 25.6 33.2 41.1 49.4 56.3 61.1 60.7 51.5 39.7 28.4 19.5 40.7
Minimum 13.5 13.2 20.8 25.9 34.1 40.4 41.6 40.7 33.4 25.4 20.0 11.3 26.8
CDD 0 0 0 0 <0.5 3 19 16 <0.5 0 0 0 38
HDD 1336 1104 986 718 484 264 142 151 405 786 1100 1410 8886
Precip 2.39 1.53 1.84 1.35 2.14 2.41 1.58 1.05 1.30 1.53 2.90 2.51 22.53
City: YELLOWTAIL DAM
State: MT
ID: USC00249240
Lat: 45.3128
Long: -107.9383
County: Big Horn
Elev: 3305 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 38.6 41.4 50.0 59.0 68.4 78.2 88.2 87.6 75.4 61.2 46.9 37.9 61.2
Mean 28.9 31.4 38.6 47.2 55.7 64.7 72.8 71.7 60.9 49.2 37.1 28.4 49.0
Minimum 19.2 21.3 27.1 35.3 43.1 51.3 57.3 55.8 46.4 37.2 27.3 19.0 36.8
CDD <0.5 <0.5 <0.5 3 16 87 253 228 57 6 <0.5 0 650
HDD 1119 942 820 538 303 94 13 21 180 496 837 1133 6495
Precip 0.70 0.75 1.32 1.80 2.85 2.57 1.43 0.78 1.62 1.79 0.79 0.75 17.15
City: ZORTMAN
State: MT
ID: USC00249900
Lat: 47.9178
Long: -108.5272
County: Phillips
Elev: 4040 ft
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Maximum 35.1 36.1 43.1 52.7 61.9 70.5 78.8 78.8 67.1 55.0 43.1 34.1 54.8
Mean 24.2 25.4 31.9 40.7 49.8 57.7 65.0 64.6 54.3 43.1 32.4 23.3 42.8
Minimum 13.3 14.7 20.7 28.7 37.6 44.9 51.1 50.5 41.5 31.3 21.8 12.5 30.8
CDD 0 0 0 <0.5 3 22 87 86 17 1 0 0 216
HDD 1265 1109 1026 729 476 241 89 97 338 678 976 1292 8316
Precip 0.82 0.47 0.92 1.42 3.21 3.32 2.35 1.35 1.29 0.80 0.54 0.69 17.18