Belva, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 44.3 °F (low) to 66.5 °F (high). Annual precipitation averages 47.4 Inches. Belva 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 | 24.3 °F | 43.3 °F | 3.41 in. |
| February | 26.4 °F | 47.0 °F | 3.2 in. |
| March | 32.6 °F | 56.3 °F | 4.22 in. |
| April | 42.0 °F | 68.8 °F | 3.59 in. |
| May | 52.0 °F | 75.9 °F | 4.93 in. |
| June | 60.8 °F | 82.8 °F | 4.56 in. |
| July | 64.9 °F | 85.8 °F | 6.0 in. |
| August | 63.8 °F | 85.1 °F | 4.33 in. |
| September | 57.1 °F | 79.7 °F | 3.19 in. |
| October | 44.6 °F | 68.8 °F | 3.28 in. |
| November | 34.1 °F | 57.2 °F | 3.07 in. |
| December | 28.8 °F | 47.3 °F | 3.66 in. |
| Annual | 44.3 °F | 66.5 °F | 47.44 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 | Dfb - Humid Continental Mild Summer, Wet All Year |