Colliers, West Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.7 °F (low) to 62.3 °F (high). Annual precipitation averages 42.2 Inches. Colliers is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.0 °F | 37.7 °F | 3.27 in. |
| February | 22.4 °F | 40.6 °F | 2.53 in. |
| March | 29.3 °F | 50.1 °F | 3.25 in. |
| April | 39.4 °F | 63.3 °F | 3.65 in. |
| May | 49.4 °F | 72.9 °F | 4.08 in. |
| June | 58.3 °F | 80.5 °F | 4.58 in. |
| July | 62.5 °F | 83.9 °F | 4.3 in. |
| August | 61.1 °F | 82.8 °F | 3.6 in. |
| September | 54.4 °F | 76.8 °F | 3.62 in. |
| October | 42.9 °F | 64.9 °F | 3.2 in. |
| November | 33.5 °F | 52.6 °F | 3.0 in. |
| December | 26.5 °F | 42.0 °F | 3.15 in. |
| Annual | 41.7 °F | 62.3 °F | 42.23 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |