| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Nov. 21 - Nov. 30 |
| Average Last Frost Date: | Mar. 1 - Mar. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 65f - Southern Pine Plains and Hills |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 36580 - Summerdale, AL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 40 | 42 | 49 | 54 | 63 | 69 | 72 | 72 | 68 | 56 | 48 | 42 | 56 |
| Avg Max Temp (°F) | 61 | 64 | 70 | 76 | 83 | 89 | 90 | 90 | 87 | 79 | 70 | 63 | 77 |
| Avg Precip (In.) | 6.15 | 5.31 | 6.78 | 4.52 | 5.34 | 5.63 | 7.99 | 6.52 | 6.11 | 3.54 | 5.3 | 4.32 | 67.52 |