| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Mar. 21 - Mar. 31 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 67g - Southern Shale Valleys |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 35903 - Gadsden, AL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 30 | 33 | 40 | 47 | 56 | 64 | 69 | 68 | 62 | 49 | 40 | 33 | 49 |
| Avg Max Temp (°F) | 51 | 57 | 66 | 74 | 81 | 88 | 91 | 90 | 84 | 75 | 64 | 55 | 73 |
| Avg Precip (In.) | 5.74 | 4.91 | 6.45 | 5.1 | 4.44 | 4.21 | 4.47 | 3.59 | 4.11 | 2.97 | 4.49 | 4.83 | 55.31 |