Greenville, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.7 °C (low) to 23.4 °C (high). Annual precipitation averages 1327.7 Millimeters. Greenville 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.9 °C | 13.2 °C | 123.44 mm |
| February | 2.4 °C | 15.3 °C | 126.49 mm |
| March | 5.7 °C | 19.6 °C | 126.75 mm |
| April | 9.6 °C | 23.7 °C | 111.76 mm |
| May | 14.7 °C | 27.6 °C | 93.73 mm |
| June | 18.7 °C | 30.8 °C | 112.27 mm |
| July | 20.6 °C | 32.2 °C | 119.63 mm |
| August | 20.3 °C | 32 °C | 107.19 mm |
| September | 16.9 °C | 29.3 °C | 92.46 mm |
| October | 10.9 °C | 24.4 °C | 83.06 mm |
| November | 5.1 °C | 18.7 °C | 97.28 mm |
| December | 2.3 °C | 14.4 °C | 133.6 mm |
| Annual | 10.7 °C | 23.4 °C | 1327.66 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 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 |