Delbarton, West Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.6 °F (low) to 68.4 °F (high). Annual precipitation averages 49.3 Inches. Delbarton is located in USDA Plant Hardiness Zone 7a. 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 | 25.8 °F | 45.1 °F | 3.62 in. |
| February | 28.2 °F | 49.2 °F | 3.62 in. |
| March | 34.3 °F | 58.2 °F | 4.56 in. |
| April | 44.0 °F | 70.8 °F | 4.22 in. |
| May | 53.5 °F | 78.1 °F | 4.83 in. |
| June | 61.9 °F | 84.7 °F | 4.89 in. |
| July | 65.7 °F | 87.9 °F | 5.7 in. |
| August | 64.7 °F | 87.1 °F | 3.98 in. |
| September | 58.0 °F | 81.7 °F | 3.37 in. |
| October | 45.9 °F | 70.4 °F | 3.11 in. |
| November | 35.2 °F | 58.5 °F | 3.08 in. |
| December | 29.9 °F | 48.8 °F | 4.33 in. |
| Annual | 45.6 °F | 68.4 °F | 49.31 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 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 |