| 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 30187 - Winston, GA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 30 | 33 | 39 | 46 | 55 | 63 | 67 | 66 | 60 | 48 | 39 | 33 | 48 |
| Avg Max Temp (°F) | 51 | 56 | 64 | 72 | 79 | 85 | 88 | 87 | 82 | 73 | 63 | 54 | 71 |
| Avg Precip (In.) | 5.65 | 5.03 | 5.91 | 4.29 | 4.59 | 3.95 | 4.79 | 3.79 | 3.77 | 3.11 | 4.15 | 4.19 | 53.22 |