| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F 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. 11 - Nov. 20 | |
| Average Last Frost Date: | Apr. 1 - Apr. 10 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 45a - Southern Inner Piedmont | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 30168 - Austell, GA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 33 | 40 | 47 | 56 | 64 | 68 | 67 | 61 | 49 | 40 | 33 | 49 |
| Avg Max Temp (°F) | 51 | 56 | 64 | 72 | 79 | 86 | 89 | 88 | 82 | 73 | 63 | 54 | 71 |
| Avg Precip (In.) | 5.58 | 4.93 | 5.8 | 4.16 | 4.3 | 3.92 | 4.77 | 4 | 3.75 | 3.2 | 4.09 | 4.1 | 52.59 |