| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F 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: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 67h - Southern Sandstone Ridges |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 35243 - Birmingham, AL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 32 | 35 | 42 | 48 | 57 | 65 | 69 | 68 | 62 | 50 | 41 | 35 | 50 |
| Avg Max Temp (°F) | 53 | 58 | 67 | 74 | 81 | 88 | 91 | 90 | 85 | 75 | 65 | 56 | 74 |
| Avg Precip (In.) | 5.75 | 4.59 | 6.37 | 4.79 | 4.8 | 4.06 | 5.13 | 3.47 | 4.22 | 3.27 | 4.74 | 4.74 | 55.96 |