Melfa, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.1 °F (low) to 67.5 °F (high). Annual precipitation averages 47 Inches. Melfa is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.5 °F | 47.7 °F | 3.47 in. |
| February | 31.6 °F | 49.7 °F | 3.02 in. |
| March | 37.7 °F | 55.9 °F | 4.04 in. |
| April | 47.3 °F | 65.8 °F | 3.4 in. |
| May | 56.8 °F | 74.4 °F | 3.62 in. |
| June | 65.8 °F | 82.7 °F | 4.15 in. |
| July | 70.7 °F | 87.0 °F | 4.7 in. |
| August | 68.7 °F | 84.9 °F | 4.63 in. |
| September | 63.2 °F | 79.7 °F | 4.16 in. |
| October | 52.1 °F | 70.1 °F | 4.46 in. |
| November | 41.5 °F | 59.8 °F | 3.47 in. |
| December | 34.7 °F | 51.9 °F | 3.9 in. |
| Annual | 50.1 °F | 67.5 °F | 47.02 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |