| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Jan. 11 - Jan. 20 |
| Average Last Frost Date: | Jan. 21 - Jan. 31 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 75j - Sea Islands/Coastal Marsh |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 31411 - Savannah, GA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 39 | 40 | 47 | 53 | 62 | 69 | 72 | 71 | 68 | 57 | 48 | 41 | 55 |
| Avg Max Temp (°F) | 60 | 63 | 70 | 76 | 83 | 88 | 91 | 89 | 85 | 78 | 70 | 62 | 76 |
| Avg Precip (In.) | 4.15 | 3.22 | 3.85 | 3.11 | 3.2 | 5.32 | 5.68 | 7.38 | 5.56 | 3.3 | 2.61 | 3.04 | 50.42 |