Winston-Salem, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.1 °C (low) to 20.8 °C (high). Annual precipitation averages 1172.2 Millimeters. Winston-Salem is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.5 °C | 9.5 °C | 96.77 mm |
| February | -0.3 °C | 11.8 °C | 79.76 mm |
| March | 3.4 °C | 16.1 °C | 102.87 mm |
| April | 8.3 °C | 21.4 °C | 104.65 mm |
| May | 13.4 °C | 25.3 °C | 98.81 mm |
| June | 18.1 °C | 29.2 °C | 106.68 mm |
| July | 20.2 °C | 31.1 °C | 109.98 mm |
| August | 19.3 °C | 30.1 °C | 109.22 mm |
| September | 15.9 °C | 26.9 °C | 97.54 mm |
| October | 9.1 °C | 21.8 °C | 85.34 mm |
| November | 3.2 °C | 15.8 °C | 83.31 mm |
| December | -0.1 °C | 11.1 °C | 97.28 mm |
| Annual | 9.1 °C | 20.8 °C | 1172.21 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |