South Fulton, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.8 °F (low) to 72 °F (high). Annual precipitation averages 53.3 Inches. South Fulton is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.9 °F | 53.0 °F | 4.85 in. |
| February | 35.9 °F | 57.0 °F | 4.83 in. |
| March | 42.5 °F | 64.7 °F | 5.22 in. |
| April | 50.3 °F | 72.6 °F | 4.23 in. |
| May | 59.4 °F | 79.7 °F | 3.77 in. |
| June | 67.0 °F | 85.6 °F | 4.26 in. |
| July | 70.2 °F | 88.6 °F | 5.18 in. |
| August | 69.5 °F | 87.7 °F | 4.4 in. |
| September | 63.8 °F | 82.7 °F | 3.98 in. |
| October | 52.4 °F | 73.3 °F | 3.53 in. |
| November | 41.4 °F | 63.4 °F | 4.17 in. |
| December | 35.9 °F | 55.5 °F | 4.85 in. |
| Annual | 51.8 °F | 72 °F | 53.27 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |