Glen Wilton, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 43.9 °F (low) to 67.8 °F (high). Annual precipitation averages 40.2 Inches. Glen Wilton is located in USDA Plant Hardiness Zone 7b. 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 | 24.9 °F | 45.2 °F | 2.9 in. |
| February | 26.7 °F | 49.6 °F | 2.75 in. |
| March | 32.8 °F | 58.0 °F | 3.45 in. |
| April | 42.1 °F | 69.4 °F | 3.62 in. |
| May | 51.6 °F | 77.0 °F | 4.07 in. |
| June | 59.9 °F | 83.9 °F | 4.13 in. |
| July | 64.0 °F | 87.5 °F | 3.72 in. |
| August | 63.0 °F | 85.9 °F | 3.04 in. |
| September | 56.4 °F | 79.8 °F | 3.42 in. |
| October | 44.3 °F | 69.7 °F | 2.95 in. |
| November | 33.5 °F | 58.8 °F | 2.83 in. |
| December | 27.7 °F | 48.9 °F | 3.34 in. |
| Annual | 43.9 °F | 67.8 °F | 40.22 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |