Greenville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.2 °F (low) to 76.4 °F (high). Annual precipitation averages 57.6 Inches. Greenville is located in USDA Plant Hardiness Zone 8b. 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 | 35.5 °F | 58.5 °F | 5.49 in. |
| February | 38.8 °F | 62.7 °F | 4.66 in. |
| March | 45.0 °F | 70.1 °F | 5.67 in. |
| April | 51.5 °F | 76.7 °F | 4.4 in. |
| May | 60.2 °F | 83.8 °F | 3.96 in. |
| June | 67.5 °F | 89.0 °F | 5.0 in. |
| July | 70.4 °F | 91.2 °F | 5.45 in. |
| August | 69.9 °F | 90.6 °F | 4.82 in. |
| September | 65.0 °F | 86.8 °F | 4.45 in. |
| October | 53.7 °F | 78.3 °F | 3.67 in. |
| November | 42.9 °F | 68.1 °F | 4.65 in. |
| December | 38.0 °F | 60.8 °F | 5.39 in. |
| Annual | 53.2 °F | 76.4 °F | 57.61 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |