Rocky Gap, Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.7 °F (low) to 64.5 °F (high). Annual precipitation averages 41.9 Inches. Rocky Gap 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 | 23.2 °F | 42.7 °F | 3.29 in. |
| February | 25.3 °F | 46.3 °F | 2.93 in. |
| March | 31.3 °F | 54.4 °F | 3.86 in. |
| April | 39.9 °F | 65.7 °F | 3.84 in. |
| May | 49.2 °F | 73.6 °F | 4.56 in. |
| June | 57.4 °F | 80.1 °F | 3.91 in. |
| July | 61.2 °F | 83.4 °F | 4.12 in. |
| August | 60.0 °F | 82.4 °F | 3.33 in. |
| September | 53.3 °F | 77.1 °F | 3.28 in. |
| October | 41.6 °F | 66.8 °F | 2.76 in. |
| November | 31.7 °F | 55.7 °F | 2.59 in. |
| December | 26.3 °F | 45.9 °F | 3.38 in. |
| Annual | 41.7 °F | 64.5 °F | 41.85 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 | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |