National Weather Service United States Department of Commerce

Muscle Shoals, Alabama New Climate 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 50.7 55.4 64.4 73.3 80.9 87.8 90.8 90.9 84.7 74.3 63.3 52.8 72.5
Normal  Low 31.3 35.0 42.0 49.5 58.7 66.3 70.0 68.8 61.6 49.8 40.9 33.8 50.7
Normal  Avg 41.0 45.2 53.2 61.4 69.8 77.0 80.4 79.8 73.2 62.1 52.1 43.3 61.6
HDD* 744 555 378 160 30 1 0 0 15 153 394 674 3105 
CDD** ~0 1 12 52 179 362 477 460 259 62 7 1 1874
Normal Precipitation 4.61 4.66 4.76 4.35 5.12 4.76 4.30 3.15 3.72 3.43 4.66 5.86 53.20
Normal Snowfall 0.4 1.0 0.4 T 0 0 0 0 0 0 0 0.4 2.2

 

 

The OLD 1971-2000 Normals

 

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Normal High 49.1 54.8 63.8 72.4 79.8 87.3 90.6 90.0 83.9 73.6 62.2 52.7 71.7
Normal Low 30.7 34.3 41.8 48.7 57.7 65.6 69.8 68.1 61.9 49.4 40.8 33.8 50.2
Normal Avg 39.9 44.6 52.8 60.6 68.8 76.5 80.2 79.1 72.9 61.5 51.5 43.3 60.6
HDD* 778 573 388 169 50 1 0 0 18 171 414 674 3236
CDD** 0 0 8 36 167 344 471 436 255 63 9 0 1789
Normal Precipitation 4.97 4.46 6.21 4.43 5.30 4.90 4.52 2.96 4.30 3.22 5.09 5.44 55.80
Normal Snowfall 1.0 0.9 0.3 T 0 0 0 0 0 0 T 0.2 2.4

 

 

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Normal High +1.6 +0.6 +0.6 +0.9 +1.1 +0.5 +0.2 +0.9 +0.8 +0.7 +1.1 +0.1 +0.8 
Normal Low +0.6 +0.7 +0.2 +0.8 +1.0 +0.7 +0.2 +0.7 -0.3 +0.4 +0.1 0 +0.5
Normal Avg +1.1 +0.6 +0.4 +0.8 +1.0 +0.5 +0.2 +0.7 +0.3 +0.6 +0.6 0 +1.0
HDD* -34 -18 -10 -9 -20 0 0 0 -3 -18 -20 0 -131
CDD** ~0 +1 +4 +16 +12 +18 +6 +24 +4 -1 -2 +1 +85
Normal Precipitation -0.36 +0.20 -1.45 -0.08 -0.18 -0.14 -0.22 +0.19 -0.58 +0.21 -0.43 +0.24 -2.60
Normal Snowfall -0.6 +0.1 +0.1 ~0 0 0 0 0 0 0 ~0 +0.2 -0.2

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