Huntsville, Alabama New Climate Normals

Daily Normals

Click in the box below for the daily normals and records for the month indicated.   

Monthly Normals

The NEW 1981-2010 Normals

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Normal  High 51.2 55.9 64.9 73.6 81.3 88.2 90.7 90.9 85.0 74.6 63.7 53.5 72.9 
Normal  Low 31.8 35.5 42.2 50.0 59.3 67.1 70.4 69.4 62.5 51.0 41.8 34.4 51.4 
Normal  Avg 41.5 45.7 53.5 61.8 70.3 77.7 80.6 80.1 73.7 62.8 52.7 43.9 62.1 
HDD* 729 542 368 154 27 1 0 ~0 13 138 376 654 3002 
CDD**

 ~0

1 13 58 191 380 482 470 275 70 9 2 1951 
Normal Precipitation 4.89 4.84 5.21 4.32 5.11 4.29 4.05 3.61 3.72 3.59 4.94 5.77  54.34
Normal Snowfall 1.1 0.5 0.5 0 0 0 0 0 0 0 0 0.3 2.4

 

The OLD 1971-2000 Normals

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Normal High 48.9 54.6 63.4 72.3 79.6 86.5 89.4 89.0 83.0 72.9 61.6 52.4 71.1
Normal Low 30.7 34.0 41.2 48.4 57.5 65.4 69.5 68.1 61.7 49.6 40.7 33.8 50.1
Normal Avg 39.8 44.3 52.3 60.4 68.6 76.0 79.5 78.6 72.4 61.3 51.2 43.1 60.6
HDD* 780 587 404 180 41 1 0 0 18 165 417 669 3262
CDD** 0 1 8 40 142 326 446 417 238 47 5 1 1671
Normal Precipitation 5.52 4.95 6.68 4.54 5.24 4.22 4.40 3.32 4.29 3.54 5.22 5.59 57.51
Normal Snowfall 1.3 0.7 0.4 T 0 0 0 0 0 0 T 0.1 2.5

 

Change (1981-2010 Normals) - (1971-2000 Normals) 

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Normal High +2.3 +1.3 +1.5 +1.3 +1.7 +1.7 +1.3 +1.9 +2.0 +1.7 +2.1 +1.1 +1.8
Normal Low +1.1 +1.5 +1.0 +1.6 +1.8 +1.7 +0.9 +1.3 +0.8 +1.4 +1.1 +0.6 +1.3 
Normal Avg +1.7 +1.4 +1.2 +1.4 +1.7 +1.7 +1.1 +1.5 +1.3 +1.5 +1.5 +0.8 +1.5
HDD* -51 -45 -36 -26 -14 0 0 ~0 -5 -27 -41 -15 -260 
CDD** ~0 0 +5 +18 +49 +54 +36 +53 +37 +23 +4 +1 +280 
Normal Precipitation -0.63 -0.11 -1.47 -0.22 -0.13 +0.07 -0.35 +0.29 -0.57 +0.05 -0.28 +0.18  -3.17
Normal Snowfall -0.2 -0.2 +0.1 ~0 0 0 0 0 0 0 ~0 +0.2 -0.1

* HDD = Heating Degree Days
** CDD = Cooling Degree Days


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