| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F 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: | 45b - Southern Outer Piedmont |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 30286 - Thomaston, GA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 34 | 40 | 47 | 56 | 64 | 68 | 67 | 62 | 50 | 41 | 34 | 49 |
| Avg Max Temp (°F) | 56 | 61 | 69 | 75 | 82 | 88 | 90 | 89 | 85 | 76 | 68 | 58 | 75 |
| Avg Precip (In.) | 5.03 | 4.8 | 5.96 | 3.89 | 3.44 | 3.47 | 5.24 | 3.96 | 3.28 | 2.59 | 3.75 | 4.26 | 49.68 |