| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°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: | 65g - Dougherty Plain |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 32421 - Altha, FL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 40 | 47 | 53 | 61 | 67 | 70 | 70 | 66 | 54 | 46 | 40 | 54 |
| Avg Max Temp (°F) | 62 | 66 | 73 | 79 | 86 | 90 | 91 | 91 | 88 | 80 | 72 | 65 | 79 |
| Avg Precip (In.) | 5.57 | 4.48 | 5.93 | 4.12 | 4.1 | 5.38 | 6.81 | 5.88 | 5.34 | 2.9 | 3.55 | 3.83 | 57.89 |