| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°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: | 67f - Southern Limestone/Dolomite Valleys and Low Rolling Hills |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 35242 - 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) | 54 | 59 | 67 | 75 | 81 | 88 | 91 | 90 | 85 | 76 | 65 | 57 | 74 |
| Avg Precip (In.) | 5.81 | 4.69 | 6.43 | 4.83 | 4.73 | 4.13 | 5.13 | 3.48 | 4.24 | 3.25 | 4.76 | 4.77 | 56.26 |