Arthurdale, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.7 °C (low) to 16.4 °C (high). Annual precipitation averages 1328.4 Millimeters. 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 | -6.2 °C | 3.4 °C | 100.84 mm |
| February | -5.4 °C | 5.2 °C | 91.19 mm |
| March | -1.8 °C | 10.1 °C | 108.2 mm |
| April | 3.6 °C | 17.2 °C | 114.55 mm |
| May | 8.8 °C | 21.8 °C | 131.06 mm |
| June | 13.5 °C | 25.6 °C | 132.08 mm |
| July | 15.7 °C | 27.4 °C | 149.86 mm |
| August | 15 °C | 26.9 °C | 111.76 mm |
| September | 11.3 °C | 24.1 °C | 90.42 mm |
| October | 5 °C | 17.8 °C | 92.46 mm |
| November | -0.1 °C | 11.3 °C | 97.28 mm |
| December | -3.6 °C | 5.8 °C | 108.71 mm |
| Annual | 4.7 °C | 16.4 °C | 1328.41 mm |
| 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 : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |