Yorktown, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.2 °C (low) to 20.4 °C (high). Annual precipitation averages 1271 Millimeters. Yorktown 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 | 0.1 °C | 9.1 °C | 91.44 mm |
| February | 0.9 °C | 10.7 °C | 74.68 mm |
| March | 4.6 °C | 14.5 °C | 102.62 mm |
| April | 10 °C | 20.3 °C | 92.46 mm |
| May | 15.3 °C | 24.4 °C | 100.33 mm |
| June | 20.1 °C | 28.7 °C | 114.3 mm |
| July | 22.4 °C | 31.1 °C | 133.1 mm |
| August | 21.8 °C | 30 °C | 146.56 mm |
| September | 18.7 °C | 27.1 °C | 130.81 mm |
| October | 12.3 °C | 21.6 °C | 110.74 mm |
| November | 6.3 °C | 15.9 °C | 81.53 mm |
| December | 2.2 °C | 11.3 °C | 92.46 mm |
| Annual | 11.2 °C | 20.4 °C | 1271.03 mm |
| 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 : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |