| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 71g - Eastern Highland Rim |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 35661 - Muscle Shoals, AL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 30 | 33 | 41 | 48 | 57 | 65 | 69 | 67 | 61 | 49 | 40 | 33 | 49 |
| Avg Max Temp (°F) | 50 | 56 | 65 | 74 | 81 | 87 | 91 | 90 | 84 | 74 | 63 | 53 | 72 |
| Avg Precip (In.) | 5.02 | 4.48 | 6.22 | 4.49 | 5.35 | 4.8 | 4.52 | 3.05 | 4.28 | 3.26 | 5.07 | 5.55 | 56.08 |