Folkston, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.4 °F (low) to 79.6 °F (high). Annual precipitation averages 50.6 Inches. Folkston is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.8 °F | 64.1 °F | 3.67 in. |
| February | 42.6 °F | 67.5 °F | 3.43 in. |
| March | 47.8 °F | 73.6 °F | 3.86 in. |
| April | 54.6 °F | 80.4 °F | 3.16 in. |
| May | 62.1 °F | 86.8 °F | 2.86 in. |
| June | 69.2 °F | 90.9 °F | 6.75 in. |
| July | 71.7 °F | 92.9 °F | 6.39 in. |
| August | 71.7 °F | 91.8 °F | 7.15 in. |
| September | 68.1 °F | 88.1 °F | 5.43 in. |
| October | 58.4 °F | 80.8 °F | 3.53 in. |
| November | 48.1 °F | 72.5 °F | 1.71 in. |
| December | 42.8 °F | 66.2 °F | 2.69 in. |
| Annual | 56.4 °F | 79.6 °F | 50.63 in. |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |