Middleburg, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 44 °F (low) to 65.7 °F (high). Annual precipitation averages 44.3 Inches. Middleburg 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 | 23.9 °F | 42.5 °F | 3.1 in. |
| February | 25.3 °F | 45.6 °F | 2.5 in. |
| March | 32.2 °F | 54.1 °F | 3.69 in. |
| April | 41.8 °F | 66.2 °F | 3.42 in. |
| May | 51.5 °F | 74.2 °F | 4.6 in. |
| June | 60.6 °F | 82.7 °F | 4.45 in. |
| July | 65.3 °F | 87.1 °F | 4.27 in. |
| August | 63.4 °F | 85.6 °F | 3.56 in. |
| September | 56.6 °F | 79.4 °F | 4.49 in. |
| October | 44.6 °F | 68.0 °F | 3.61 in. |
| November | 34.8 °F | 56.4 °F | 3.14 in. |
| December | 28.0 °F | 46.5 °F | 3.47 in. |
| Annual | 44 °F | 65.7 °F | 44.3 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |