Leon, West Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 42.8 °F (low) to 65.6 °F (high). Annual precipitation averages 44.2 Inches. Leon 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 | 22.8 °F | 41.7 °F | 3.05 in. |
| February | 24.9 °F | 45.6 °F | 2.92 in. |
| March | 30.9 °F | 54.9 °F | 3.82 in. |
| April | 40.5 °F | 67.5 °F | 3.45 in. |
| May | 51.1 °F | 75.5 °F | 4.62 in. |
| June | 59.5 °F | 82.6 °F | 4.46 in. |
| July | 63.6 °F | 86.0 °F | 4.95 in. |
| August | 62.2 °F | 85.0 °F | 3.67 in. |
| September | 55.1 °F | 79.3 °F | 3.76 in. |
| October | 42.9 °F | 67.9 °F | 2.98 in. |
| November | 32.6 °F | 56.1 °F | 2.95 in. |
| December | 27.2 °F | 45.6 °F | 3.57 in. |
| Annual | 42.8 °F | 65.6 °F | 44.2 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |