Calverton, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 44.9 °F (low) to 67.1 °F (high). Annual precipitation averages 44.9 Inches. Calverton 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.4 °F | 44.4 °F | 2.99 in. |
| February | 25.9 °F | 47.7 °F | 2.64 in. |
| March | 33.0 °F | 56.1 °F | 3.83 in. |
| April | 43.2 °F | 67.8 °F | 3.49 in. |
| May | 53.2 °F | 75.7 °F | 4.35 in. |
| June | 62.1 °F | 84.1 °F | 4.51 in. |
| July | 66.8 °F | 88.4 °F | 4.27 in. |
| August | 64.9 °F | 86.5 °F | 3.57 in. |
| September | 57.7 °F | 80.0 °F | 4.67 in. |
| October | 44.8 °F | 68.9 °F | 3.83 in. |
| November | 34.5 °F | 57.9 °F | 3.25 in. |
| December | 28.2 °F | 48.1 °F | 3.54 in. |
| Annual | 44.9 °F | 67.1 °F | 44.94 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |