Franklin Springs, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.2 °C (low) to 22.4 °C (high). Annual precipitation averages 1294.4 Millimeters. Franklin Springs is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.1 °C | 11.8 °C | 115.06 mm |
| February | 1.6 °C | 13.9 °C | 113.54 mm |
| March | 4.8 °C | 18.1 °C | 119.38 mm |
| April | 9.2 °C | 22.7 °C | 97.28 mm |
| May | 14.2 °C | 26.6 °C | 92.71 mm |
| June | 18.7 °C | 30.3 °C | 116.08 mm |
| July | 20.7 °C | 32.1 °C | 105.66 mm |
| August | 20.2 °C | 31.1 °C | 116.59 mm |
| September | 16.9 °C | 28.3 °C | 102.11 mm |
| October | 10.3 °C | 23 °C | 92.96 mm |
| November | 4.3 °C | 17.6 °C | 98.81 mm |
| December | 1.5 °C | 13.1 °C | 124.21 mm |
| Annual | 10.2 °C | 22.4 °C | 1294.39 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |