King and Queen Court House, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21 °C (high). Annual precipitation averages 1209.5 Millimeters. King and Queen Court House is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.9 °C | 9.3 °C | 87.12 mm |
| February | -1.3 °C | 11 °C | 72.14 mm |
| March | 2.4 °C | 15.3 °C | 102.62 mm |
| April | 7.8 °C | 21.5 °C | 90.42 mm |
| May | 13.3 °C | 25.4 °C | 102.11 mm |
| June | 18 °C | 29.8 °C | 111.25 mm |
| July | 20.6 °C | 32.1 °C | 128.27 mm |
| August | 19.7 °C | 30.8 °C | 124.21 mm |
| September | 16.2 °C | 27.8 °C | 119.63 mm |
| October | 9.4 °C | 22.2 °C | 101.09 mm |
| November | 3.5 °C | 16.1 °C | 78.99 mm |
| December | -0.2 °C | 11.1 °C | 91.69 mm |
| Annual | 9 °C | 21 °C | 1209.54 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |