Beaver, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.9 °F (low) to 62.2 °F (high). Annual precipitation averages 43.9 Inches. Beaver is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.0 °F | 40.4 °F | 3.06 in. |
| February | 23.9 °F | 44.0 °F | 2.95 in. |
| March | 30.0 °F | 52.2 °F | 3.91 in. |
| April | 39.2 °F | 64.1 °F | 3.92 in. |
| May | 48.5 °F | 71.5 °F | 4.68 in. |
| June | 56.6 °F | 77.7 °F | 4.22 in. |
| July | 60.4 °F | 80.7 °F | 5.13 in. |
| August | 59.0 °F | 79.8 °F | 3.7 in. |
| September | 52.8 °F | 74.6 °F | 3.34 in. |
| October | 41.2 °F | 64.3 °F | 2.64 in. |
| November | 31.1 °F | 53.5 °F | 2.74 in. |
| December | 26.1 °F | 43.7 °F | 3.63 in. |
| Annual | 40.9 °F | 62.2 °F | 43.92 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |