Boydton, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.7 °C (low) to 21.3 °C (high). Annual precipitation averages 1145.3 Millimeters. Boydton is located in USDA Plant Hardiness Zone 7b. 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 | -2.2 °C | 9.6 °C | 86.11 mm |
| February | -1.2 °C | 11.7 °C | 68.83 mm |
| March | 2.4 °C | 15.9 °C | 101.6 mm |
| April | 7.7 °C | 21.7 °C | 86.36 mm |
| May | 13.2 °C | 25.8 °C | 98.55 mm |
| June | 17.8 °C | 29.9 °C | 112.78 mm |
| July | 20.2 °C | 32.1 °C | 119.63 mm |
| August | 19.4 °C | 31.1 °C | 97.54 mm |
| September | 15.9 °C | 27.8 °C | 115.57 mm |
| October | 8.7 °C | 22 °C | 89.15 mm |
| November | 2.8 °C | 16.2 °C | 80.26 mm |
| December | -0.3 °C | 11.4 °C | 88.9 mm |
| Annual | 8.7 °C | 21.3 °C | 1145.28 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 7b : -15°C to -12.2°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 |