Winstonville, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.8 °C (low) to 22.8 °C (high). Annual precipitation averages 1400.1 Millimeters. Winstonville 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.9 °C | 10.6 °C | 128.27 mm |
| February | 2.4 °C | 13 °C | 130.3 mm |
| March | 6.7 °C | 17.8 °C | 132.84 mm |
| April | 11.6 °C | 23.1 °C | 150.37 mm |
| May | 16.9 °C | 27.7 °C | 132.84 mm |
| June | 21.1 °C | 31.4 °C | 102.11 mm |
| July | 22.6 °C | 32.7 °C | 98.3 mm |
| August | 21.6 °C | 32.8 °C | 82.04 mm |
| September | 17.8 °C | 30.4 °C | 83.06 mm |
| October | 11.4 °C | 24.6 °C | 99.31 mm |
| November | 5.7 °C | 17.4 °C | 116.08 mm |
| December | 2.4 °C | 12.1 °C | 144.53 mm |
| Annual | 11.8 °C | 22.8 °C | 1400.05 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |