Winterville, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12 °C (low) to 23.2 °C (high). Annual precipitation averages 1382 Millimeters. Winterville is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.2 °C | 11.1 °C | 133.35 mm |
| February | 2.8 °C | 13.6 °C | 131.32 mm |
| March | 7.1 °C | 18.4 °C | 131.57 mm |
| April | 11.9 °C | 23.4 °C | 147.83 mm |
| May | 17.2 °C | 28 °C | 123.7 mm |
| June | 21.3 °C | 31.8 °C | 90.42 mm |
| July | 22.7 °C | 33.1 °C | 97.54 mm |
| August | 21.7 °C | 33.2 °C | 80.01 mm |
| September | 18 °C | 30.7 °C | 86.87 mm |
| October | 11.6 °C | 24.9 °C | 100.84 mm |
| November | 6 °C | 17.9 °C | 118.62 mm |
| December | 2.7 °C | 12.6 °C | 139.95 mm |
| Annual | 12 °C | 23.2 °C | 1382.02 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |