Arthurdale, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.4 °F (low) to 61.5 °F (high). Annual precipitation averages 52.3 Inches. Arthurdale 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 | 20.8 °F | 38.1 °F | 3.97 in. |
| February | 22.2 °F | 41.4 °F | 3.59 in. |
| March | 28.7 °F | 50.2 °F | 4.26 in. |
| April | 38.5 °F | 63.0 °F | 4.51 in. |
| May | 47.9 °F | 71.2 °F | 5.16 in. |
| June | 56.3 °F | 78.0 °F | 5.2 in. |
| July | 60.3 °F | 81.3 °F | 5.9 in. |
| August | 59.0 °F | 80.4 °F | 4.4 in. |
| September | 52.3 °F | 75.3 °F | 3.56 in. |
| October | 41.0 °F | 64.0 °F | 3.64 in. |
| November | 31.9 °F | 52.3 °F | 3.83 in. |
| December | 25.5 °F | 42.4 °F | 4.28 in. |
| Annual | 40.4 °F | 61.5 °F | 52.3 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |