Boyce, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6.3 °C (low) to 18.5 °C (high). Annual precipitation averages 1025.7 Millimeters. Boyce is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.7 °C | 5.7 °C | 68.83 mm |
| February | -3.7 °C | 7.5 °C | 57.15 mm |
| March | -0.2 °C | 12 °C | 84.33 mm |
| April | 5.3 °C | 18.8 °C | 82.8 mm |
| May | 10.6 °C | 23.4 °C | 103.89 mm |
| June | 15.4 °C | 28.2 °C | 105.41 mm |
| July | 18.2 °C | 30.7 °C | 100.84 mm |
| August | 16.9 °C | 29.7 °C | 85.09 mm |
| September | 13.1 °C | 25.9 °C | 108.97 mm |
| October | 6.5 °C | 19.7 °C | 80.01 mm |
| November | 1.2 °C | 13.2 °C | 71.12 mm |
| December | -2.7 °C | 7.7 °C | 77.22 mm |
| Annual | 6.3 °C | 18.5 °C | 1025.66 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |