Guyton, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.4 °F (low) to 77.7 °F (high). Annual precipitation averages 49.3 Inches. Guyton is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.8 °F | 61.1 °F | 3.84 in. |
| February | 40.6 °F | 64.7 °F | 3.65 in. |
| March | 46.6 °F | 71.4 °F | 3.44 in. |
| April | 53.6 °F | 78.2 °F | 3.31 in. |
| May | 62.0 °F | 84.8 °F | 3.33 in. |
| June | 69.4 °F | 90.5 °F | 5.84 in. |
| July | 72.4 °F | 93.1 °F | 5.41 in. |
| August | 72.0 °F | 91.3 °F | 6.17 in. |
| September | 67.5 °F | 86.2 °F | 4.36 in. |
| October | 56.9 °F | 78.3 °F | 3.46 in. |
| November | 45.7 °F | 69.5 °F | 2.7 in. |
| December | 40.3 °F | 62.9 °F | 3.82 in. |
| Annual | 55.4 °F | 77.7 °F | 49.33 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |