Fairview, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.8 °C (low) to 17.6 °C (high). Annual precipitation averages 1230.4 Millimeters. Fairview 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.3 °C | 4.1 °C | 94.49 mm |
| February | -5.4 °C | 5.9 °C | 82.3 mm |
| March | -1.7 °C | 11.2 °C | 102.87 mm |
| April | 3.6 °C | 18.7 °C | 101.09 mm |
| May | 9.1 °C | 23.3 °C | 123.44 mm |
| June | 13.9 °C | 27.2 °C | 120.9 mm |
| July | 16.3 °C | 29.1 °C | 136.65 mm |
| August | 15.5 °C | 28.6 °C | 105.41 mm |
| September | 11.5 °C | 25.4 °C | 94.23 mm |
| October | 4.9 °C | 18.9 °C | 87.38 mm |
| November | -0.2 °C | 12.2 °C | 83.06 mm |
| December | -3.7 °C | 6.3 °C | 98.55 mm |
| Annual | 4.8 °C | 17.6 °C | 1230.37 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |