Williamsburg, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.6 °F (low) to 70 °F (high). Annual precipitation averages 50 Inches. Williamsburg 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 | 30.7 °F | 49.5 °F | 3.61 in. |
| February | 32.1 °F | 52.5 °F | 2.85 in. |
| March | 38.6 °F | 59.7 °F | 4.06 in. |
| April | 48.5 °F | 70.1 °F | 3.78 in. |
| May | 58.1 °F | 77.3 °F | 4.01 in. |
| June | 66.7 °F | 85.0 °F | 4.4 in. |
| July | 70.8 °F | 89.4 °F | 5.43 in. |
| August | 69.7 °F | 87.1 °F | 5.67 in. |
| September | 63.7 °F | 81.8 °F | 5.15 in. |
| October | 51.9 °F | 71.8 °F | 4.32 in. |
| November | 41.5 °F | 61.9 °F | 3.04 in. |
| December | 34.3 °F | 53.4 °F | 3.64 in. |
| Annual | 50.6 °F | 70 °F | 49.96 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 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |