Martinsburg, West Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.2 °F (low) to 65 °F (high). Annual precipitation averages 41.4 Inches. Martinsburg 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 | 23.0 °F | 41.2 °F | 2.74 in. |
| February | 24.6 °F | 44.8 °F | 2.52 in. |
| March | 31.3 °F | 53.2 °F | 3.31 in. |
| April | 41.5 °F | 65.3 °F | 3.71 in. |
| May | 51.1 °F | 74.2 °F | 4.21 in. |
| June | 59.9 °F | 82.5 °F | 4.14 in. |
| July | 64.4 °F | 87.1 °F | 3.65 in. |
| August | 62.5 °F | 85.3 °F | 3.3 in. |
| September | 55.5 °F | 78.6 °F | 4.54 in. |
| October | 43.5 °F | 67.2 °F | 3.24 in. |
| November | 34.0 °F | 55.6 °F | 2.87 in. |
| December | 27.0 °F | 44.9 °F | 3.2 in. |
| Annual | 43.2 °F | 65 °F | 41.43 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |