Boissevain, Virginia has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 41.9 °F (low) to 63.1 °F (high). Annual precipitation averages 48.5 Inches. Boissevain is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.3 °F | 41.5 °F | 3.71 in. |
| February | 25.4 °F | 45.0 °F | 3.44 in. |
| March | 31.3 °F | 53.3 °F | 4.43 in. |
| April | 40.3 °F | 64.7 °F | 4.49 in. |
| May | 49.4 °F | 72.3 °F | 5.13 in. |
| June | 57.3 °F | 78.4 °F | 4.97 in. |
| July | 61.1 °F | 81.4 °F | 5.33 in. |
| August | 59.7 °F | 80.7 °F | 3.75 in. |
| September | 53.8 °F | 75.7 °F | 3.41 in. |
| October | 42.1 °F | 65.2 °F | 2.98 in. |
| November | 32.2 °F | 54.3 °F | 2.92 in. |
| December | 27.0 °F | 44.8 °F | 3.9 in. |
| Annual | 41.9 °F | 63.1 °F | 48.46 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |