Reader, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.5 °F (low) to 64 °F (high). Annual precipitation averages 50.9 Inches. Reader 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 | 21.1 °F | 39.5 °F | 3.9 in. |
| February | 22.7 °F | 43.0 °F | 3.53 in. |
| March | 29.3 °F | 52.6 °F | 4.47 in. |
| April | 39.3 °F | 66.2 °F | 4.2 in. |
| May | 49.4 °F | 74.2 °F | 5.13 in. |
| June | 58.4 °F | 81.4 °F | 4.74 in. |
| July | 62.8 °F | 84.6 °F | 5.52 in. |
| August | 61.5 °F | 83.9 °F | 4.18 in. |
| September | 54.2 °F | 78.0 °F | 3.84 in. |
| October | 41.9 °F | 66.4 °F | 3.5 in. |
| November | 31.9 °F | 54.2 °F | 3.71 in. |
| December | 25.9 °F | 43.6 °F | 4.2 in. |
| Annual | 41.5 °F | 64 °F | 50.92 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 | Dfb - Humid Continental Mild Summer, Wet All Year |