Showers and thunderstorms are expected across the southern and eastern US this week, with heavy rain and localized flooding, particularly near the Gulf Coast. Monsoonal moisture will bring rain and potential flooding to parts of the Southwest. Heat and fire weather threats will continue to impact the West. Read More >
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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
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