Edison, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.4 °F (low) to 77.1 °F (high). Annual precipitation averages 52.8 Inches. Edison is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.2 °F | 60.2 °F | 4.82 in. |
| February | 40.2 °F | 64.0 °F | 4.7 in. |
| March | 45.8 °F | 71.2 °F | 5.07 in. |
| April | 52.4 °F | 77.6 °F | 4.28 in. |
| May | 61.6 °F | 84.7 °F | 2.98 in. |
| June | 68.9 °F | 89.3 °F | 5.13 in. |
| July | 71.3 °F | 91.2 °F | 5.7 in. |
| August | 70.6 °F | 90.2 °F | 4.9 in. |
| September | 66.1 °F | 86.6 °F | 3.94 in. |
| October | 55.2 °F | 78.7 °F | 2.68 in. |
| November | 44.5 °F | 69.5 °F | 3.48 in. |
| December | 39.5 °F | 62.3 °F | 5.16 in. |
| Annual | 54.4 °F | 77.1 °F | 52.84 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |