National Weather Service United States Department of Commerce

Heavy Rain and Flooding Threat in the Ohio Valley

Gulf moisture will combine with a cold front and will bring heavy rain and scattered flash flooding over parts of the Mid-South into the Ohio Valley through the morning and the Ohio Valley and Central Appalachians on Tuesday. Showers and thunderstorms, some severe, are expected over the Southern Rockies/Southern High Plains on Tuesday. Read More >

Huntsville, AL

Weather Forecast Office

Climate Normals: New and Old

Weather.gov > Huntsville, AL > Climate Normals: New and Old

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

Follow us on X  Follow us on X
Follow us on Facebook  Follow us on Facebook
Follow us on YouTube  Follow us on YouTube
HUN RSS Feed  HUN RSS Feed