Clayton, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.9 °F (low) to 68.8 °F (high). Annual precipitation averages 69.7 Inches. Clayton is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.5 °F | 50.0 °F | 6.37 in. |
| February | 30.8 °F | 53.7 °F | 5.9 in. |
| March | 36.6 °F | 60.8 °F | 6.13 in. |
| April | 44.1 °F | 69.5 °F | 5.69 in. |
| May | 52.8 °F | 76.3 °F | 4.83 in. |
| June | 60.5 °F | 82.3 °F | 5.84 in. |
| July | 64.0 °F | 85.3 °F | 5.95 in. |
| August | 63.2 °F | 84.2 °F | 5.98 in. |
| September | 57.3 °F | 79.3 °F | 5.74 in. |
| October | 46.0 °F | 70.3 °F | 4.81 in. |
| November | 36.0 °F | 60.9 °F | 5.51 in. |
| December | 31.1 °F | 52.8 °F | 6.95 in. |
| Annual | 45.9 °F | 68.8 °F | 69.7 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |