Kopperston, West Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 42.8 °F (low) to 63.7 °F (high). Annual precipitation averages 54 Inches. Kopperston is located in USDA Plant Hardiness Zone 7a. 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 | 24.0 °F | 41.6 °F | 4.06 in. |
| February | 26.0 °F | 45.5 °F | 3.88 in. |
| March | 32.3 °F | 53.8 °F | 5.74 in. |
| April | 41.3 °F | 66.0 °F | 4.8 in. |
| May | 50.5 °F | 73.2 °F | 5.75 in. |
| June | 58.4 °F | 79.5 °F | 4.76 in. |
| July | 62.1 °F | 82.3 °F | 5.87 in. |
| August | 60.7 °F | 81.6 °F | 4.39 in. |
| September | 54.6 °F | 76.1 °F | 3.41 in. |
| October | 42.5 °F | 65.4 °F | 3.12 in. |
| November | 33.1 °F | 54.6 °F | 3.44 in. |
| December | 27.8 °F | 44.9 °F | 4.79 in. |
| Annual | 42.8 °F | 63.7 °F | 54.01 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |