Hico, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 5.3 °C (low) to 16.8 °C (high). Annual precipitation averages 1237 Millimeters. Hico 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 | -5.6 °C | 4.4 °C | 87.12 mm |
| February | -4.4 °C | 6.4 °C | 81.03 mm |
| March | -0.7 °C | 11.2 °C | 108.71 mm |
| April | 4.5 °C | 17.7 °C | 101.85 mm |
| May | 9.6 °C | 22.2 °C | 130.05 mm |
| June | 13.9 °C | 25.7 °C | 128.52 mm |
| July | 16.1 °C | 27.4 °C | 134.37 mm |
| August | 15.4 °C | 26.7 °C | 118.36 mm |
| September | 12.1 °C | 23.9 °C | 90.93 mm |
| October | 5.6 °C | 17.8 °C | 85.6 mm |
| November | 0.1 °C | 11.8 °C | 76.2 mm |
| December | -3.2 °C | 6.5 °C | 94.23 mm |
| Annual | 5.3 °C | 16.8 °C | 1236.97 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 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |