| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | 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: | 45a - Southern Inner Piedmont |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 30117 - Carrollton, GA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 29 | 32 | 38 | 44 | 53 | 61 | 66 | 65 | 59 | 46 | 38 | 32 | 47 |
| Avg Max Temp (°F) | 52 | 57 | 65 | 72 | 79 | 86 | 88 | 87 | 82 | 73 | 64 | 55 | 72 |
| Avg Precip (In.) | 5.53 | 5.06 | 6.18 | 4.4 | 4.21 | 3.92 | 4.56 | 3.71 | 3.3 | 3.32 | 4.52 | 4.46 | 53.18 |