Branchville, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.5 °F (low) to 71.1 °F (high). Annual precipitation averages 49.9 Inches. Branchville is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.7 °F | 50.8 °F | 3.69 in. |
| February | 31.0 °F | 54.1 °F | 2.7 in. |
| March | 37.3 °F | 61.1 °F | 4.28 in. |
| April | 46.8 °F | 71.9 °F | 3.49 in. |
| May | 55.9 °F | 78.9 °F | 3.72 in. |
| June | 64.7 °F | 86.5 °F | 5.15 in. |
| July | 68.8 °F | 90.0 °F | 5.38 in. |
| August | 67.0 °F | 88.2 °F | 5.08 in. |
| September | 61.2 °F | 82.6 °F | 5.77 in. |
| October | 48.4 °F | 72.8 °F | 3.74 in. |
| November | 38.1 °F | 62.4 °F | 3.32 in. |
| December | 32.7 °F | 54.2 °F | 3.55 in. |
| Annual | 48.5 °F | 71.1 °F | 49.87 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |