| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 21 - Nov. 30 | |
| Average Last Frost Date: | Mar. 11 - Mar. 20 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 65h - Tifton Upland | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 31789 - Sumner, GA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 37 | 40 | 47 | 53 | 61 | 68 | 71 | 70 | 66 | 55 | 47 | 40 | 55 |
| Avg Max Temp (°F) | 59 | 63 | 70 | 77 | 84 | 89 | 91 | 90 | 87 | 78 | 70 | 62 | 77 |
| Avg Precip (In.) | 5.48 | 4.47 | 5.21 | 3.43 | 3.41 | 4.57 | 4.99 | 4.3 | 3.54 | 2.5 | 3.38 | 3.68 | 48.96 |