Funston, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.7 °C (low) to 25.3 °C (high). Annual precipitation averages 1297.5 Millimeters. Funston is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.3 °C | 16.1 °C | 121.16 mm |
| February | 6.2 °C | 18.3 °C | 111 mm |
| March | 9.1 °C | 21.8 °C | 132.08 mm |
| April | 12.8 °C | 25.7 °C | 92.46 mm |
| May | 17.3 °C | 29.4 °C | 69.34 mm |
| June | 21.2 °C | 31.7 °C | 141.48 mm |
| July | 22.4 °C | 32.8 °C | 138.18 mm |
| August | 22.2 °C | 32.4 °C | 132.84 mm |
| September | 19.9 °C | 30.6 °C | 110.24 mm |
| October | 14.4 °C | 26.4 °C | 76.2 mm |
| November | 8.7 °C | 21.2 °C | 74.93 mm |
| December | 5.8 °C | 17.4 °C | 97.54 mm |
| Annual | 13.7 °C | 25.3 °C | 1297.45 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |