MARYLAND
Climate Normals (1971-2000)
other states
 
City:ABERDEEN PHILLIPS FIELD
State:MD
Lat:39.28N
Long:076.10W
Elev:   57
ID:180015
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     25.8  28.1  34.9  43.6  53.1  61.8  67.0  65.6  58.8  46.6  38.4  30.4  46.2
Maximum     41.4  45.4  54.6  65.5  74.7  82.6  87.0  85.2  78.9  67.9  56.8  46.2  65.5
Mean        33.6  36.8  44.8  54.6  63.9  72.2  77.0  75.4  68.9  57.3  47.6  38.3  55.9
Precip.     3.41  2.60  3.65  3.36  4.41  4.03  4.21  4.07  4.48  3.39  3.20  3.41 44.22
HDD          973   791   627   318   107     6     0     0    24   263   522   828  4459
CDD            0     0     0     4    71   222   372   321   140    23     0     0  1153
City:ANNAPOLIS POLICE BRKS  
State:MD
Lat:39.00N
Long:076.31W
Elev:   25
ID:180193
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     23.8  25.1  32.8  42.1  52.3  61.6  67.3  65.8  58.5  46.3  36.2  28.6  45.0
Maximum     41.8  45.0  54.3  65.1  74.8  83.2  87.7  85.3  78.0  66.9  55.7  46.8  65.4
Mean        32.8  35.1  43.6  53.6  63.6  72.4  77.5  75.6  68.3  56.6  46.0  37.7  55.2
Precip.     3.49  2.95  4.17  3.34  4.42  3.56  3.98  4.04  4.25  3.56  3.33  3.69 44.78
HDD          998   839   664   344   106     6     0     0    34   286   572   846  4695
CDD            0     0     0     3    60   229   387   326   132    25     0     0  1162
City:ASSATEAGUE             
State:MD
Lat:38.04N
Long:075.13W
Elev:   10
ID:180335
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     28.1  29.6  35.0  43.5  53.1  61.8  67.5  67.4  62.4  50.8  41.0  32.4  47.7
Maximum     44.5  46.3  52.8  61.4  69.9  78.5  83.7  83.3  78.1  68.3  58.4  49.4  64.6
Mean        36.3  38.0  43.9  52.5  61.5  70.2  75.6  75.4  70.3  59.6  49.7  40.9  56.2
Precip.     4.34  3.59  4.26  3.25  3.60  2.85  3.62  4.18  3.70  3.30  3.16  3.21 43.06
HDD          890   757   653   376   140    18     0     0    13   209   463   747  4266
CDD            0     0     0     0    31   173   328   321   170    40     3     0  1066
City:BALTIMORE-WASHINGTON AP
State:MD
Lat:39.10N
Long:076.41W
Elev:  148
ID:180465
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     23.5  26.1  33.6  42.0  51.8  60.8  65.8  63.9  56.6  43.7  34.7  27.3  44.2
Maximum     41.2  44.8  53.9  64.5  73.9  82.7  87.2  85.1  78.2  67.0  56.3  46.0  65.1
Mean        32.3  35.5  43.7  53.2  62.9  71.8  76.5  74.5  67.4  55.4  45.5  36.7  54.6
Precip.     3.47  3.02  3.93  3.00  3.89  3.43  3.85  3.74  3.98  3.16  3.12  3.35 41.94
HDD          986   816   647   345   119    12     0     1    41   279   549   839  4634
CDD            0     0     4    13    71   236   390   332   153    19     2     0  1220
City:BALTIMORE CITY         
State:MD
Lat:39.17N
Long:076.37W
Elev:   14
ID:180470
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     29.4  31.3  39.0  48.2  58.2  67.7  72.7  70.8  63.7  51.6  42.1  33.5  50.7
Maximum     44.1  47.3  56.8  67.8  77.2  86.0  90.6  88.2  80.9  69.7  58.7  48.5  68.0
Mean        36.8  39.3  47.9  58.0  67.7  76.9  81.7  79.5  72.3  60.7  50.4  41.0  59.4
Precip.     3.48  3.07  4.12  3.06  4.18  3.28  3.96  4.05  4.06  3.19  3.45  3.69 43.59
HDD          877   720   531   233    64     1     0     0    11   187   439   744  3807
CDD            0     0     1    23   146   357   515   450   230    51     1     0  1774
City:BELTSVILLE             
State:MD
Lat:39.02N
Long:076.53W
Elev:  145
ID:180700
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     23.5  25.9  33.5  41.9  51.9  61.4  66.5  65.0  57.8  44.5  36.4  28.5  44.7
Maximum     41.7  44.8  54.0  64.7  74.0  82.7  87.2  85.6  78.9  67.6  56.9  46.1  65.4
Mean        32.6  35.4  43.8  53.3  63.0  72.1  76.9  75.3  68.4  56.1  46.7  37.3  55.1
Precip.     3.43  2.69  3.87  3.33  4.54  3.59  4.09  3.69  4.35  3.56  3.32  3.30 43.76
HDD         1005   831   659   353   119     9     0     0    29   294   550   858  4707
CDD            0     0     0     1    55   220   368   319   129    17     0     0  1109
City:BENSON POLICE BARRACKS 
State:MD
Lat:39.30N
Long:076.23W
Elev:  365
ID:180732
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     23.0  25.3  32.4  41.4  51.8  60.5  65.2  63.5  56.7  44.8  35.6  27.6  44.0
Maximum     42.3  46.6  56.2  67.3  76.5  84.3  88.5  86.8  80.6  69.2  57.5  46.5  66.9
Mean        32.7  36.0  44.3  54.4  64.2  72.4  76.9  75.2  68.7  57.0  46.6  37.1  55.5
Precip.     3.79  2.92  4.44  3.81  5.02  4.36  5.03  4.35  4.53  3.72  4.01  3.79 49.77
HDD         1002   813   641   324   106     6     0     0    33   272   555   866  4618
CDD            0     0     0     4    79   227   367   315   143    24     0     0  1159
City:BOYDS 2 NW             
State:MD
Lat:39.13N
Long:077.20W
Elev:  580
ID:181032
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     24.4  26.8  34.1  42.9  52.2  60.3  64.7  62.9  56.4  44.7  36.7  28.3  44.5
Maximum     40.6  45.0  54.7  65.5  74.1  81.8  85.7  84.0  77.7  67.2  55.6  45.0  64.7
Mean        32.5  35.9  44.4  54.2  63.2  71.1  75.2  73.5  67.1  56.0  46.2  36.7  54.7
Precip.     3.08  2.70  3.75  3.23  4.44  3.84  3.86  3.38  4.12  3.32  3.21  3.04 41.97
HDD         1007   815   639   326   115    10     0     2    40   295   567   878  4694
CDD            0     0     0     3    58   192   317   264   101    14     0     0   949
City:BRIGHTON DAM           
State:MD
Lat:39.12N
Long:077.01W
Elev:  330
ID:181125
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     3.34  3.18  4.29  3.31  4.64  3.92  4.04  3.36  3.89  3.61  3.59  3.51 44.68
City:CAMBRIDGE WATER TRMT PL
State:MD
Lat:38.34N
Long:076.04W
Elev:   10
ID:181385
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     27.2  29.3  36.5  44.7  54.5  63.5  68.3  66.9  60.5  48.8  40.1  31.8  47.7
Maximum     45.0  48.6  57.0  67.7  76.9  85.3  89.4  87.3  81.1  70.5  60.2  50.1  68.3
Mean        36.1  39.0  46.8  56.2  65.7  74.4  78.9  77.1  70.8  59.7  50.2  41.0  58.0
Precip.     4.11  3.13  4.44  3.22  4.16  3.23  4.32  4.59  3.87  3.07  3.43  3.65 45.22
HDD          896   730   566   271    66     3     0     0     9   197   447   745  3930
CDD            0     0     0     7    87   285   429   375   184    32     1     0  1400
City:CATOCTIN MOUNTAIN PARK 
State:MD
Lat:39.39N
Long:077.29W
Elev: 1610
ID:181530
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     21.4  23.9  31.4  40.7  51.0  59.5  64.0  62.7  56.4  45.2  35.7  26.3  43.2
Maximum     36.6  40.5  50.4  63.0  72.2  78.8  82.1  80.3  73.7  63.8  51.9  41.2  61.2
Mean        29.0  32.2  40.9  51.9  61.6  69.2  73.1  71.5  65.1  54.5  43.8  33.8  52.2
Precip.     3.95  3.33  4.32  3.96  5.14  4.61  3.82  3.92  4.91  3.89  3.87  3.44 49.16
HDD         1116   918   748   396   154    21     3     7    66   335   637   969  5370
CDD            0     0     0     2    48   145   253   207    68    10     0     0   733
City:CENTREVILLE            
State:MD
Lat:39.03N
Long:076.04W
Elev:   59
ID:181627
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     25.0  27.1  34.3  42.6  52.0  60.4  64.9  63.3  56.6  44.5  36.8  29.1  44.7
Maximum     43.5  47.3  56.0  66.7  75.9  84.1  88.0  86.4  80.1  69.7  58.8  48.2  67.1
Mean        34.3  37.2  45.2  54.7  64.0  72.3  76.5  74.9  68.4  57.1  47.8  38.7  55.9
Precip.     3.88  2.84  3.78  3.37  4.20  3.55  3.89  3.62  4.00  3.40  3.41  3.49 43.43
HDD          953   779   615   315    92     7     0     0    25   268   515   816  4385
CDD            0     0     0     3    59   224   355   305   126    23     0     0  1095
City:CHESTERTOWN            
State:MD
Lat:39.13N
Long:076.04W
Elev:   40
ID:181750
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     24.8  26.9  34.4  43.0  52.9  61.9  66.9  65.2  58.0  46.0  37.2  29.0  45.5
Maximum     41.5  44.9  54.3  65.1  74.9  83.5  87.8  86.4  79.6  68.3  56.9  46.2  65.8
Mean        33.2  35.9  44.4  54.1  63.9  72.7  77.4  75.8  68.8  57.2  47.1  37.6  55.7
Precip.     3.56  3.03  4.16  3.34  4.09  4.26  3.94  3.76  4.30  3.37  3.34  3.69 44.84
HDD          988   814   640   330   103     6     0     0    24   265   539   850  4559
CDD            0     0     0     2    69   237   382   334   138    21     0     0  1183
City:CLARKSVILLE 3 NNE      
State:MD
Lat:39.15N
Long:076.56W
Elev:  370
ID:181862
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     22.0  23.5  31.1  39.1  49.3  58.2  63.1  61.2  54.2  41.7  33.5  26.2  41.9
Maximum     40.7  45.0  54.5  65.6  75.1  83.1  87.1  85.3  79.1  67.7  56.0  45.4  65.4
Mean        31.4  34.3  42.8  52.4  62.2  70.7  75.1  73.3  66.7  54.7  44.8  35.8  53.7
Precip.     3.42  2.97  4.15  3.51  4.71  3.84  4.03  3.90  4.17  3.49  3.56  3.52 45.27
HDD         1043   861   688   380   129    10     0     3    41   330   607   905  4997
CDD            0     0     0     1    42   181   313   259    91    11     0     0   898
City:COLLEGE PARK           
State:MD
Lat:38.59N
Long:076.57W
Elev:   90
ID:181995
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     25.5  27.6  35.4  43.9  54.1  63.5  68.7  66.9  59.9  46.8  38.0  30.0  46.7
Maximum     42.2  46.2  55.1  66.1  75.5  83.9  88.5  86.6  79.6  68.5  57.4  47.0  66.4
Mean        33.9  36.9  45.3  55.0  64.8  73.7  78.6  76.8  69.8  57.7  47.7  38.5  56.6
Precip.     3.46  2.84  3.79  3.18  4.58  3.76  4.43  4.05  4.12  3.43  3.30  3.27 44.21
HDD          966   787   613   304    89     5     0     0    18   253   520   822  4377
CDD            0     0     0     4    84   265   421   365   161    25     0     0  1325
City:CONOWINGO DAM          
State:MD
Lat:39.39N
Long:076.10W
Elev:   40
ID:182060
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     21.9  23.8  31.7  40.5  51.0  60.1  64.7  63.6  56.5  43.9  34.4  26.8  43.2
Maximum     39.9  43.5  53.0  64.2  74.2  82.8  87.6  86.0  78.8  67.3  55.4  44.7  64.8
Mean        30.9  33.7  42.4  52.4  62.6  71.5  76.2  74.8  67.7  55.6  44.9  35.8  54.0
Precip.     3.98  2.92  4.16  3.65  4.58  4.15  4.20  4.41  4.92  3.47  3.76  3.89 48.09
HDD         1057   878   703   382   133    18     1     1    44   316   603   908  5044
CDD            0     0     0     1    58   211   346   305   123    24     0     0  1068
City:CRISFIELD SOMERS COVE  
State:MD
Lat:37.59N
Long:075.52W
Elev:    8
ID:182215
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     30.2  31.3  38.3  47.5  57.1  66.1  71.4  70.5  63.8  52.6  43.0  34.4  50.5
Maximum     44.2  46.9  55.1  65.2  74.2  81.9  86.5  84.9  79.3  68.6  58.4  49.1  66.2
Mean        37.2  39.1  46.7  56.4  65.7  74.0  79.0  77.7  71.6  60.6  50.7  41.8  58.4
Precip.     3.25  3.00  4.29  2.81  3.12  2.83  4.14  4.15  2.76  2.78  2.80  2.51 38.44
HDD          862   725   567   265    67     2     0     0     8   180   431   722  3829
CDD            0     0     0     7    87   271   432   393   204    44     2     0  1440
City:CUMBERLAND 2           
State:MD
Lat:39.38N
Long:078.45W
Elev:  730
ID:182282
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     20.5  22.7  30.2  39.0  48.5  56.9  61.6  60.1  52.9  40.4  32.3  24.6  40.8
Maximum     40.0  45.0  55.1  66.8  75.9  83.5  87.3  85.7  78.7  67.4  54.8  43.8  65.3
Mean        30.3  33.9  42.7  52.9  62.2  70.2  74.5  72.9  65.8  53.9  43.6  34.2  53.1
Precip.     2.89  2.43  3.30  3.16  3.97  3.12  3.42  3.53  3.18  2.69  2.91  2.61 37.21
HDD         1077   872   693   365   146    20     5     6    57   353   642   955  5191
CDD            0     0     0     3    59   176   298   250    81    10     0     0   877
City:DALECARLIA RESERVOIR   
State:MD
Lat:38.56N
Long:077.07W
Elev:  150
ID:182325
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     23.9  26.3  33.4  42.3  52.2  61.1  66.1  64.9  57.9  44.7  35.7  28.0  44.7
Maximum     44.0  48.4  57.9  68.9  77.6  85.2  89.1  87.4  80.7  69.8  58.6  48.4  68.0
Mean        34.0  37.4  45.7  55.6  64.9  73.2  77.6  76.2  69.3  57.3  47.2  38.2  56.4
Precip.     3.48  3.01  4.13  3.54  4.42  3.69  4.26  3.98  4.30  3.48  3.41  3.41 45.11
HDD          962   774   601   289    88     5     0     1    31   263   536   832  4382
CDD            0     0     0     7    84   249   390   345   160    23     0     0  1258
City:DENTON 2 E             
State:MD
Lat:38.53N
Long:075.48W
Elev:   49
ID:182523
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     24.8  27.1  34.0  41.5  51.4  60.3  65.1  63.4  56.4  44.5  36.4  28.9  44.5
Maximum     43.7  47.3  56.5  67.3  76.3  84.9  88.8  86.7  80.8  70.0  59.1  48.4  67.5
Mean        34.3  37.2  45.3  54.4  63.9  72.6  77.0  75.1  68.6  57.3  47.8  38.7  56.0
Precip.     3.86  2.97  3.84  3.42  4.11  3.46  3.91  3.91  3.92  3.10  3.31  3.39 43.20
HDD          953   777   612   321   102     9     0     0    26   261   518   817  4396
CDD            0     0     0     3    65   236   371   311   134    21     0     0  1141
City:EDGEMONT               
State:MD
Lat:39.40N
Long:077.33W
Elev:  905
ID:182770
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     3.18  2.72  3.68  3.81  4.74  4.28  3.44  3.57  4.22  3.67  3.62  3.20 44.13
City:EMMITSBURG 2 SE        
State:MD
Lat:39.41N
Long:077.18W
Elev:  416
ID:182906
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     22.7  24.5  32.4  40.7  50.6  59.3  64.1  62.3  55.4  43.4  35.0  27.8  43.2
Maximum     39.3  43.6  53.5  64.8  73.8  81.7  85.8  84.2  77.3  66.4  54.5  43.9  64.1
Mean        31.0  34.1  43.0  52.8  62.2  70.5  75.0  73.3  66.4  54.9  44.8  35.9  53.7
Precip.     3.66  2.97  3.95  3.80  4.52  4.35  3.64  3.60  4.26  3.48  3.80  3.31 45.34
HDD         1055   866   684   369   139    12     0     7    61   328   608   903  5032
CDD            0     0     0     1    52   178   309   263   101    14     0     0   918
City:FREDERICK POLICE BRKS  
State:MD
Lat:39.25N
Long:077.26W
Elev:  380
ID:183348
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     25.1  27.3  34.5  43.7  53.5  62.3  66.9  65.5  58.5  46.8  38.0  29.6  46.0
Maximum     41.5  45.9  55.6  67.4  76.8  84.8  88.9  86.7  80.0  68.4  56.5  45.9  66.5
Mean        33.3  36.6  45.1  55.6  65.2  73.6  77.9  76.1  69.3  57.6  47.3  37.8  56.3
Precip.     3.05  2.59  3.45  3.32  4.18  3.91  3.50  2.93  3.82  3.26  3.27  3.36 40.64
HDD          983   796   618   290    85     3     0     0    25   253   532   845  4430
CDD            0     0     0     6    89   259   400   343   152    23     0     0  1272
City:FREDERICK 3 E          
State:MD
Lat:39.24N
Long:077.22W
Elev:  385
ID:183355
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     3.42  2.69  3.78  3.44  4.57  4.02  3.70  3.13  4.13  3.71  3.37  3.23 43.19
City:FROSTBURG 2            
State:MD
Lat:39.40N
Long:078.56W
Elev: 2168
ID:183415
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     16.5  18.4  25.6  35.2  45.7  53.6  58.1  57.0  50.2  39.4  30.7  21.9  37.7
Maximum     32.4  36.2  45.0  56.6  66.7  74.7  78.8  77.3  70.4  59.2  47.5  37.1  56.8
Mean        24.5  27.3  35.3  45.9  56.2  64.2  68.5  67.2  60.3  49.3  39.1  29.5  47.3
Precip.     3.57  3.10  3.84  3.97  4.76  3.84  3.91  3.82  3.62  3.21  3.76  3.16 44.56
HDD         1257  1055   919   573   290    85    29    43   158   487   777  1102  6775
CDD            0     0     0     0    18    60   137   111    17     1     0     0   344
City:GLENN DALE BELL STN    
State:MD
Lat:38.58N
Long:076.48W
Elev:  150
ID:183675
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     21.2  22.8  31.2  39.0  49.5  58.5  63.3  62.0  54.8  42.2  32.8  25.9  41.9
Maximum     42.4  46.0  55.4  64.9  73.9  82.0  87.1  85.5  78.6  68.0  56.9  47.0  65.6
Mean        31.8  34.4  43.3  52.0  61.7  70.3  75.2  73.8  66.7  55.1  44.9  36.5  53.8
Precip.     3.45  2.83  3.95  3.41  4.69  3.73  4.18  4.09  4.03  3.61  3.42  3.27 44.66
HDD         1029   857   673   393   138    20     1     3    46   321   605   884  4970
CDD            0     0     0     1    36   178   319   273    96    14     0     0   917
City:HAGERSTOWN             
State:MD
Lat:39.39N
Long:077.44W
Elev:  660
ID:183975
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     20.8  22.8  31.3  40.5  51.2  59.7  64.2  62.0  55.1  43.0  34.6  26.6  42.7
Maximum     37.7  42.1  52.2  63.2  73.6  81.6  86.1  84.3  76.9  65.9  53.5  42.7  63.3
Mean        29.3  32.5  41.8  51.9  62.4  70.7  75.2  73.2  66.0  54.5  44.1  34.7  53.0
Precip.     2.91  2.35  3.26  3.38  4.14  3.70  3.24  3.31  3.63  3.41  3.36  2.76 39.45
HDD         1108   911   720   396   138    13     1     3    51   337   629   942  5249
CDD            0     0     0     1    56   183   315   257    81     9     0     0   902
City:HANCOCK                
State:MD
Lat:39.42N
Long:078.11W
Elev:  384
ID:184030
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     20.0  21.8  29.6  37.6  47.9  56.6  61.5  60.1  52.8  40.2  32.1  25.1  40.4
Maximum     39.6  43.3  53.5  64.8  74.2  82.1  86.4  84.5  77.5  66.8  55.4  43.9  64.3
Mean        29.8  32.6  41.6  51.2  61.1  69.4  74.0  72.3  65.2  53.5  43.8  34.5  52.4
Precip.     2.73  2.23  3.17  3.20  4.03  3.38  3.81  3.28  3.21  3.24  3.09  2.69 38.06
HDD         1092   908   727   414   164    20     0     7    68   366   639   946  5351
CDD            0     0     0     0    41   150   277   234    73     8     0     0   783
City:LA PLATA 1 W           
State:MD
Lat:38.32N
Long:077.00W
Elev:  140
ID:185080
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     26.0  28.4  35.4  43.2  53.2  61.9  66.8  65.4  58.7  47.1  38.1  30.1  46.2
Maximum     44.0  48.5  57.8  68.4  74.6  81.2  84.8  83.4  77.9  68.0  58.6  48.2  66.3
Mean        35.0  38.5  46.6  55.8  63.9  71.6  75.8  74.4  68.3  57.6  48.4  39.2  56.3
Precip.     3.42  2.85  3.96  3.11  4.13  3.81  4.12  4.60  4.31  3.36  3.21  3.16 44.04
HDD          930   744   571   282    95     9     0     1    30   254   500   801  4217
CDD            0     0     0     6    60   207   335   293   130    23     1     0  1055
City:LAUREL 3 W             
State:MD
Lat:39.06N
Long:076.54W
Elev:  400
ID:185111
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     24.5  27.0  34.8  44.0  54.0  62.3  67.4  66.2  58.8  46.9  37.9  29.3  46.1
Maximum     41.7  45.6  54.9  65.7  75.1  83.3  88.2  86.7  79.3  68.2  57.0  46.3  66.0
Mean        33.1  36.3  44.9  54.9  64.6  72.8  77.8  76.5  69.1  57.6  47.5  37.8  56.1
Precip.     3.52  3.01  4.17  3.61  4.75  3.92  4.02  3.61  4.53  3.62  3.98  3.66 46.40
HDD          989   804   625   313   106     9     0     0    30   258   528   843  4505
CDD            0     0     0     8    91   243   396   355   151    26     1     0  1271
City:MECHANICSVILLE 5 NE    
State:MD
Lat:38.27N
Long:076.41W
Elev:  100
ID:185865
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     26.3  28.5  35.6  43.7  53.4  61.9  67.0  65.5  59.1  47.0  38.0  30.6  46.4
Maximum     43.5  47.2  56.7  66.8  74.3  82.0  86.1  84.0  77.4  66.3  57.8  48.4  65.9
Mean        34.9  37.9  46.2  55.3  63.9  72.0  76.6  74.8  68.3  56.7  47.9  39.5  56.2
Precip.     3.99  3.37  4.63  3.49  4.22  4.27  4.48  3.94  4.38  3.92  3.43  3.40 47.52
HDD          934   761   584   298    94     7     0     2    36   279   513   791  4299
CDD            0     0     0     6    58   216   357   304   133    19     0     0  1093
City:MERRILL                
State:MD
Lat:39.36N
Long:079.05W
Elev: 1790
ID:185894
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     3.03  2.71  3.46  3.59  4.25  3.68  4.14  3.70  3.11  2.87  3.16  3.02 40.72
City:MILLERS 4 NE           
State:MD
Lat:39.43N
Long:076.48W
Elev:  860
ID:185934
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     22.8  25.0  32.4  41.2  50.8  59.7  64.1  62.6  55.9  45.4  36.3  27.9  43.7
Maximum     38.0  41.7  50.9  62.3  71.7  79.6  83.6  82.3  75.3  64.6  53.2  42.8  62.2
Mean        30.4  33.4  41.7  51.8  61.3  69.7  73.9  72.5  65.6  55.0  44.8  35.4  53.0
Precip.     3.64  2.90  3.77  3.45  4.28  3.62  3.57  3.71  4.14  3.44  3.61  3.54 43.67
HDD         1073   887   725   398   157    18     1     3    53   320   607   920  5162
CDD            0     0     0     1    42   157   275   235    70    10     0     0   790
City:MILLINGTON 1 SE        
State:MD
Lat:39.16N
Long:075.52W
Elev:   30
ID:185985
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     23.5  25.5  33.1  41.2  51.0  59.9  64.7  63.2  56.5  44.7  36.1  28.0  44.0
Maximum     42.1  45.5  54.8  65.4  74.6  82.7  87.1  85.6  79.1  68.3  57.4  47.0  65.8
Mean        32.8  35.5  44.0  53.3  62.8  71.3  75.9  74.4  67.8  56.5  46.8  37.5  54.9
Precip.     3.50  2.95  4.22  3.36  4.32  3.88  4.05  4.05  4.27  3.39  3.22  3.57 44.78
HDD          999   826   653   354   119    12     0     1    36   285   547   852  4684
CDD            0     0     0     2    51   201   338   292   120    21     0     0  1025
City:NATIONAL ARBORETUM DC  
State:MD
Lat:38.54N
Long:076.59W
Elev:   50
ID:186350
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     24.0  26.0  33.4  42.2  52.4  61.8  66.9  64.8  56.9  44.1  35.7  28.2  44.7
Maximum     43.0  46.4  55.3  66.0  75.8  84.4  88.9  87.4  80.4  69.0  58.0  47.7  66.9
Mean        33.5  36.2  44.4  54.1  64.1  73.1  77.9  76.1  68.7  56.6  46.9  38.0  55.8
Precip.     3.57  2.84  3.92  3.26  4.29  3.63  4.21  3.90  4.08  3.43  3.32  3.25 43.70
HDD          977   807   641   332   108     6     0     1    35   283   544   837  4571
CDD            0     0     0     4    80   249   399   345   144    22     0     0  1243
City:OAKLAND 1 SE           
State:MD
Lat:39.24N
Long:079.24W
Elev: 2420
ID:186620
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     17.4  18.9  26.3  34.7  44.3  52.6  57.4  55.9  49.5  37.6  29.6  21.9  37.2
Maximum     36.1  39.6  49.5  60.3  69.0  76.0  79.3  78.2  72.1  62.3  50.4  40.6  59.5
Mean        26.8  29.3  37.9  47.5  56.7  64.3  68.4  67.1  60.8  50.0  40.0  31.3  48.3
Precip.     3.51  3.18  3.95  4.07  4.84  4.60  5.23  4.15  3.56  3.12  3.68  3.67 47.56
HDD         1186  1000   840   525   273    77    21    39   143   468   750  1046  6368
CDD            0     0     0     0    15    57   125   102    16     1     0     0   316
City:OWINGS FERRY LANDING   
State:MD
Lat:38.41N
Long:076.40W
Elev:  160
ID:186770
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     24.4  26.6  33.8  42.2  52.1  60.9  65.8  64.0  57.8  45.9  37.1  28.8  45.0
Maximum     43.3  47.3  56.7  67.5  76.0  83.3  87.1  85.3  79.2  68.5  58.1  47.7  66.7
Mean        33.9  37.0  45.3  54.9  64.1  72.1  76.5  74.7  68.5  57.2  47.6  38.3  55.8
Precip.     3.56  2.70  3.90  3.10  4.24  3.71  4.17  3.70  4.08  3.32  3.45  3.21 43.14
HDD          965   786   612   312   105     9     0     1    28   260   523   830  4431
CDD            0     0     0     7    77   221   355   299   132    19     0     0  1110
City:PARKTON 2 SW           
State:MD
Lat:39.38N
Long:076.42W
Elev:  600
ID:186844
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     20.5  22.6  30.2  38.8  48.5  57.8  62.6  61.2  54.3  42.0  33.5  25.2  41.4
Maximum     38.6  42.4  51.4  62.4  71.6  79.5  84.1  82.3  75.4  64.8  53.8  43.3  62.5
Mean        29.6  32.5  40.8  50.6  60.1  68.7  73.4  71.8  64.9  53.4  43.7  34.3  52.0
Precip.     3.56  3.14  4.37  3.74  4.78  4.41  4.03  3.43  4.46  3.42  3.77  3.66 46.77
HDD         1100   910   751   431   182    25     3     6    66   367   641   954  5436
CDD            0     0     0     0    29   135   261   215    62     6     0     0   708
City:PATUXENT RIVER NAS     
State:MD
Lat:38.18N
Long:076.25W
Elev:   46
ID:813721
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     28.3  29.9  36.9  45.7  55.9  64.8  70.0  68.7  62.4  50.4  41.2  32.8  48.9
Maximum     43.9  46.5  54.8  64.8  73.6  81.5  86.1  84.8  78.8  68.3  58.5  48.7  65.9
Mean        36.1  38.2  45.9  55.3  64.8  73.2  78.1  76.8  70.6  59.4  49.9  40.8  57.4
Precip.     3.63  3.24  4.60  3.19  4.23  3.75  3.81  4.00  3.82  3.19  2.99  3.24 43.69
HDD          896   751   593   300    84     4     0     0    16   223   458   752  4077
CDD            0     0     0     7    75   248   405   363   183    47     3     0  1331
City:POTOMAC FILTER PLANT   
State:MD
Lat:39.02N
Long:077.15W
Elev:  270
ID:187272
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Precip.     2.97  2.58  3.43  3.22  3.77  3.65  3.57  3.44  4.04  3.21  3.39  3.15 40.42
City:PRINCESS ANNE          
State:MD
Lat:38.13N
Long:075.41W
Elev:   20
ID:187330
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     26.0  27.8  34.3  41.2  50.8  59.8  64.7  63.1  56.2  44.4  37.1  29.5  44.6
Maximum     46.6  49.1  57.6  67.5  76.2  84.0  88.4  86.4  81.0  70.6  60.3  51.0  68.2
Mean        36.3  38.5  46.0  54.4  63.5  71.9  76.6  74.8  68.6  57.5  48.7  40.3  56.4
Precip.     3.83  2.94  4.24  3.23  3.41  3.13  4.27  4.84  3.92  3.31  3.16  3.14 43.42
HDD          889   743   591   323   101     9     0     0    27   258   489   768  4198
CDD            0     0     0     3    53   216   357   303   134    25     1     0  1092
City:ROCKVILLE 1 NE         
State:MD
Lat:39.06N
Long:077.09W
Elev:  440
ID:187705
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     23.8  25.8  33.6  42.4  51.7  60.3  65.1  63.2  56.3  44.4  35.7  28.1  44.2
Maximum     39.7  43.3  52.8  64.1  72.8  81.0  85.4  83.4  76.6  65.8  54.7  44.4  63.7
Mean        31.8  34.6  43.2  53.3  62.3  70.7  75.3  73.3  66.5  55.1  45.2  36.3  54.0
Precip.     3.34  2.85  3.89  3.19  4.38  3.74  3.91  3.72  4.09  3.36  3.44  3.17 43.08
HDD         1032   853   676   360   149    33    10    10    59   323   594   891  4990
CDD            0     0     0     6    63   202   328   268   101    15     0     0   983
City:ROYAL OAK 2 SSW        
State:MD
Lat:38.43N
Long:076.11W
Elev:   10
ID:187806
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     28.4  30.1  37.5  45.9  55.8  64.6  69.2  67.4  61.1  50.1  41.4  32.9  48.7
Maximum     43.7  46.8  55.8  66.2  75.6  83.8  88.0  86.4  80.3  69.5  58.8  48.6  67.0
Mean        36.1  38.5  46.7  56.1  65.7  74.2  78.6  76.9  70.7  59.8  50.1  40.8  57.9
Precip.     4.11  3.35  4.44  3.50  4.13  3.47  4.22  4.10  3.99  3.46  3.43  3.67 45.87
HDD          898   743   570   273    68     2     0     0    13   198   449   753  3967
CDD            0     0     0     6    90   279   423   370   185    38     1     0  1392
City:SALISBURY              
State:MD
Lat:38.22N
Long:075.35W
Elev:   10
ID:188000
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     28.3  29.8  36.8  44.5  54.1  62.9  68.0  66.6  60.0  48.2  39.9  32.1  47.6
Maximum     46.1  48.7  57.2  67.2  75.5  82.9  86.9  85.3  79.9  69.9  60.0  50.2  67.5
Mean        37.2  39.3  47.0  55.9  64.8  72.9  77.5  76.0  70.0  59.1  50.0  41.2  57.6
Precip.     4.02  3.45  4.55  3.34  3.67  3.62  4.54  4.72  3.99  3.43  3.17  3.47 45.97
HDD          862   721   558   281    81     6     0     0    16   218   453   740  3936
CDD            0     0     0     6    74   242   386   339   165    33     1     0  1246
City:SALISBURY FAA ARPT     
State:MD
Lat:38.20N
Long:075.31W
Elev:   50
ID:188005
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     26.7  28.4  35.3  43.0  52.6  61.9  67.6  65.9  59.0  46.4  38.2  30.6  46.3
Maximum     44.7  47.3  55.7  65.5  74.1  82.5  87.0  85.1  79.2  68.8  59.0  49.4  66.5
Mean        35.7  37.9  45.5  54.3  63.4  72.2  77.3  75.5  69.1  57.6  48.6  40.0  56.4
Precip.     4.09  3.56  4.62  3.41  3.87  3.57  4.54  4.99  3.73  3.64  3.30  3.72 47.04
HDD          908   761   605   325   104     7     0     0    23   255   492   774  4254
CDD            0     0     0     2    52   222   381   326   145    26     1     0  1155
City:SAVAGE RIVER DAM       
State:MD
Lat:39.31N
Long:079.08W
Elev: 1495
ID:188065
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     18.9  20.2  27.6  36.6  46.4  55.0  59.8  58.3  51.7  40.0  32.3  24.1  39.2
Maximum     33.4  37.0  46.6  58.2  68.1  75.9  79.5  78.3  71.3  60.0  48.4  37.8  57.9
Mean        26.2  28.6  37.1  47.4  57.3  65.5  69.7  68.3  61.5  50.0  40.4  31.0  48.6
Precip.     2.89  2.47  3.28  3.38  4.24  3.67  4.19  3.37  3.48  2.81  3.00  2.74 39.52
HDD         1204  1018   864   528   261    63    17    30   128   466   741  1055  6375
CDD            0     0     0     0    20    75   162   133    23     1     0     0   414
City:SNOW HILL 4 N          
State:MD
Lat:38.14N
Long:075.23W
Elev:   30
ID:188380
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     27.3  28.7  35.5  43.1  53.2  61.8  66.2  64.2  57.8  46.0  38.1  30.9  46.1
Maximum     46.7  49.2  57.5  67.8  76.3  84.0  87.7  86.3  81.4  70.8  60.7  51.1  68.3
Mean        37.0  39.0  46.5  55.5  64.8  72.9  77.0  75.3  69.6  58.4  49.4  41.0  57.2
Precip.     4.02  3.41  4.67  3.24  3.64  3.43  4.48  5.40  3.75  3.42  3.31  3.41 46.18
HDD          868   729   573   291    81     5     0     0    16   234   468   743  4008
CDD            0     0     0     4    74   242   371   318   155    29     1     0  1194
City:TOWSON                 
State:MD
Lat:39.23N
Long:076.34W
Elev:  390
ID:188877
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     24.8  26.4  33.2  43.2  52.8  62.2  67.2  65.9  59.1  46.8  37.4  29.4  45.7
Maximum     41.7  45.3  54.6  65.2  74.8  82.8  87.4  85.4  79.0  67.9  56.7  46.6  65.6
Mean        33.3  35.9  43.9  54.2  63.8  72.5  77.3  75.7  69.1  57.4  47.1  38.0  55.7
Precip.     3.92  3.41  4.62  3.82  5.57  4.10  4.54  4.67  4.87  4.08  4.01  3.92 51.53
HDD          985   815   655   330   107     6     0     0    28   261   540   837  4564
CDD            0     0     0     7    70   231   383   331   149    23     0     0  1194
City:UNIONVILLE             
State:MD
Lat:39.27N
Long:077.11W
Elev:  430
ID:189030
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     20.3  22.2  29.9  37.9  47.8  57.0  61.9  59.7  52.8  40.8  32.2  24.6  40.6
Maximum     39.6  44.2  53.9  65.1  74.5  82.8  86.7  84.8  77.9  66.6  55.2  44.0  64.6
Mean        30.0  33.2  41.9  51.5  61.2  69.9  74.3  72.3  65.4  53.7  43.7  34.3  52.6
Precip.     3.37  2.52  3.63  3.38  4.16  4.31  3.53  3.22  3.87  3.49  3.63  3.19 42.30
HDD         1087   891   716   405   154    16     0     6    64   360   639   952  5290
CDD            0     0     0     0    36   164   288   231    75     9     0     0   803
City:UPPER MARLBORO 3 NNW   
State:MD
Lat:38.52N
Long:076.47W
Elev:  100
ID:189070
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     22.4  24.8  32.5  41.4  51.1  60.0  64.7  62.8  55.4  42.4  34.7  26.8  43.3
Maximum     42.5  46.0  55.0  65.4  74.2  82.5  87.0  85.4  79.0  68.1  57.8  47.2  65.8
Mean        32.5  35.4  43.8  53.4  62.7  71.3  75.9  74.1  67.2  55.3  46.3  37.0  54.6
Precip.     3.49  2.76  3.90  3.28  4.31  3.83  4.11  3.90  4.00  3.66  3.25  3.20 43.69
HDD         1009   830   659   350   130    12     0     3    46   316   562   868  4785
CDD            0     0     0     2    56   198   336   285   111    14     0     0  1002
City:VIENNA                 
State:MD
Lat:38.29N
Long:075.49W
Elev:   10
ID:189140
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     27.1  28.8  36.0  44.3  53.8  62.5  67.4  65.6  58.9  47.4  39.0  31.1  46.8
Maximum     45.1  47.5  56.8  66.9  75.9  84.1  88.7  86.6  80.8  70.1  59.5  49.8  67.7
Mean        36.1  38.2  46.4  55.6  64.9  73.3  78.1  76.1  69.9  58.8  49.3  40.5  57.3
Precip.     3.74  3.33  4.07  3.33  3.52  3.72  3.86  4.37  3.52  3.14  3.12  3.28 43.00
HDD          896   752   578   286    75     6     0     0    17   227   474   762  4073
CDD            0     0     0     4    71   255   403   344   163    33     1     0  1274
City:WESTMINSTER POL BRKS   
State:MD
Lat:39.33N
Long:076.58W
Elev:  765
ID:189440
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     23.0  25.1  32.2  41.3  51.2  59.7  64.3  62.8  55.9  44.9  36.2  27.7  43.7
Maximum     39.9  43.8  53.7  65.2  75.0  83.1  87.3  85.1  77.8  66.7  55.0  44.6  64.8
Mean        31.5  34.5  43.0  53.3  63.1  71.4  75.8  74.0  66.9  55.8  45.6  36.2  54.3
Precip.     3.15  2.37  3.56  3.29  4.57  3.56  3.71  3.64  4.02  3.66  3.24  3.21 41.98
HDD         1039   857   685   355   123     9     0     1    41   301   584   895  4890
CDD            0     0     0     3    64   201   335   279    97    16     0     0   995
City:WOODSTOCK              
State:MD
Lat:39.20N
Long:076.52W
Elev:  460
ID:189750
Normal      Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec  Annual
Minimum     22.7  24.5  32.0  40.6  50.6  59.5  64.4  62.8  55.9  43.5  34.9  27.1  43.2
Maximum     41.6  45.6  55.2  66.5  76.1  83.8  87.9  85.8  78.8  67.9  56.5  46.0  66.0
Mean        32.2  35.1  43.6  53.6  63.4  71.7  76.2  74.3  67.4  55.7  45.7  36.6  54.6
Precip.     3.74  3.01  4.30  3.52  4.78  4.11  3.85  3.53  4.09  3.44  3.73  3.53 45.63
HDD         1019   838   664   346   114     8     0     1    37   302   579   882  4790
CDD            0     0     0     3    62   207   346   289   107    13     0     0  1027

 

 

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