| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 65i - Fall Line Hills |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 35570 - Hamilton, AL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 30 | 37 | 44 | 54 | 62 | 66 | 65 | 58 | 45 | 37 | 30 | 46 |
| Avg Max Temp (°F) | 51 | 57 | 66 | 75 | 82 | 88 | 92 | 91 | 86 | 76 | 65 | 55 | 74 |
| Avg Precip (In.) | 5.77 | 5.08 | 6.43 | 5.41 | 5.96 | 4.64 | 4.67 | 3.38 | 4.42 | 3.42 | 5.28 | 5.86 | 60.33 |