Rainelle, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.5 °F (low) to 60.8 °F (high). Annual precipitation averages 52.4 Inches. Rainelle is located in USDA Plant Hardiness Zone 6a. 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 | 19.3 °F | 39.6 °F | 4.05 in. |
| February | 20.2 °F | 42.7 °F | 3.69 in. |
| March | 27.2 °F | 51.0 °F | 4.72 in. |
| April | 36.4 °F | 62.2 °F | 4.75 in. |
| May | 46.0 °F | 70.2 °F | 5.31 in. |
| June | 54.4 °F | 76.3 °F | 5.35 in. |
| July | 58.3 °F | 79.4 °F | 5.53 in. |
| August | 57.5 °F | 78.4 °F | 4.36 in. |
| September | 50.9 °F | 73.4 °F | 3.75 in. |
| October | 39.3 °F | 63.2 °F | 3.28 in. |
| November | 29.2 °F | 51.4 °F | 3.28 in. |
| December | 23.1 °F | 41.3 °F | 4.34 in. |
| Annual | 38.5 °F | 60.8 °F | 52.41 in. |
| 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |