Willacoochee, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.6 °C (low) to 25.7 °C (high). Annual precipitation averages 1263.7 Millimeters. Willacoochee is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.3 °C | 16.3 °C | 114.05 mm |
| February | 4.9 °C | 18.3 °C | 102.62 mm |
| March | 7.8 °C | 22.1 °C | 122.17 mm |
| April | 11.6 °C | 25.8 °C | 88.65 mm |
| May | 16.1 °C | 29.9 °C | 74.93 mm |
| June | 20.3 °C | 32.4 °C | 133.6 mm |
| July | 21.7 °C | 33.4 °C | 129.29 mm |
| August | 21.4 °C | 32.9 °C | 147.83 mm |
| September | 19 °C | 30.8 °C | 113.03 mm |
| October | 13.1 °C | 26.7 °C | 78.74 mm |
| November | 7.2 °C | 21.6 °C | 64.01 mm |
| December | 4.5 °C | 17.6 °C | 94.74 mm |
| Annual | 12.6 °C | 25.7 °C | 1263.66 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |