Fayetteville, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 5.5 °C (low) to 17.3 °C (high). Annual precipitation averages 1245.6 Millimeters. Fayetteville is located in USDA Plant Hardiness Zone 6b. 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 | -5.2 °C | 4.7 °C | 86.11 mm |
| February | -4.2 °C | 6.8 °C | 79.25 mm |
| March | -0.8 °C | 11.6 °C | 109.47 mm |
| April | 4.6 °C | 18.4 °C | 105.16 mm |
| May | 9.6 °C | 22.7 °C | 132.59 mm |
| June | 14.2 °C | 26.1 °C | 125.73 mm |
| July | 16.4 °C | 27.8 °C | 145.03 mm |
| August | 15.7 °C | 27.2 °C | 112.01 mm |
| September | 12.3 °C | 24.4 °C | 92.96 mm |
| October | 5.7 °C | 18.3 °C | 78.74 mm |
| November | 0.4 °C | 12.3 °C | 79.5 mm |
| December | -2.8 °C | 6.8 °C | 99.06 mm |
| Annual | 5.5 °C | 17.3 °C | 1245.61 mm |
| 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 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |