Mount Jackson, Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.9 °F (low) to 65.5 °F (high). Annual precipitation averages 37.9 Inches. Mount Jackson is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.0 °F | 42.7 °F | 2.62 in. |
| February | 23.8 °F | 45.9 °F | 2.07 in. |
| March | 30.4 °F | 54.2 °F | 2.99 in. |
| April | 39.9 °F | 66.1 °F | 2.96 in. |
| May | 49.7 °F | 74.4 °F | 4.02 in. |
| June | 58.9 °F | 82.5 °F | 4.07 in. |
| July | 62.9 °F | 86.3 °F | 3.74 in. |
| August | 61.0 °F | 84.7 °F | 3.7 in. |
| September | 53.8 °F | 78.7 °F | 3.94 in. |
| October | 42.0 °F | 67.9 °F | 2.54 in. |
| November | 32.1 °F | 56.3 °F | 2.48 in. |
| December | 25.9 °F | 46.7 °F | 2.78 in. |
| Annual | 41.9 °F | 65.5 °F | 37.91 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |