Willis Wharf, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.4 °F (low) to 67.7 °F (high). Annual precipitation averages 46.4 Inches. Willis Wharf 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 Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.6 °F | 47.6 °F | 3.56 in. |
| February | 31.8 °F | 49.6 °F | 3.01 in. |
| March | 37.9 °F | 56.0 °F | 4.1 in. |
| April | 47.3 °F | 66.7 °F | 3.4 in. |
| May | 56.9 °F | 74.9 °F | 3.56 in. |
| June | 65.9 °F | 83.1 °F | 4.06 in. |
| July | 70.8 °F | 87.4 °F | 4.69 in. |
| August | 68.8 °F | 85.3 °F | 4.53 in. |
| September | 63.8 °F | 80.2 °F | 4.52 in. |
| October | 53.1 °F | 70.6 °F | 4.08 in. |
| November | 42.3 °F | 59.7 °F | 3.03 in. |
| December | 35.2 °F | 51.7 °F | 3.88 in. |
| Annual | 50.4 °F | 67.7 °F | 46.42 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| 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 |