Union Level, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.4 °F (low) to 69.8 °F (high). Annual precipitation averages 45.4 Inches. Union Level is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.9 °F | 48.9 °F | 3.42 in. |
| February | 29.6 °F | 52.6 °F | 2.7 in. |
| March | 36.0 °F | 60.0 °F | 4.02 in. |
| April | 45.6 °F | 70.5 °F | 3.41 in. |
| May | 55.2 °F | 77.8 °F | 3.86 in. |
| June | 63.7 °F | 85.6 °F | 4.4 in. |
| July | 67.9 °F | 89.2 °F | 4.71 in. |
| August | 66.5 °F | 87.4 °F | 3.99 in. |
| September | 60.2 °F | 81.5 °F | 4.62 in. |
| October | 47.4 °F | 71.2 °F | 3.54 in. |
| November | 36.9 °F | 60.7 °F | 3.2 in. |
| December | 31.4 °F | 52.3 °F | 3.5 in. |
| Annual | 47.4 °F | 69.8 °F | 45.37 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |