Westlake Corner, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.5 °C (low) to 19.8 °C (high). Annual precipitation averages 1153.9 Millimeters. Westlake Corner 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 | -3.1 °C | 7.9 °C | 92.2 mm |
| February | -2.1 °C | 10.1 °C | 73.91 mm |
| March | 1.4 °C | 14.7 °C | 97.54 mm |
| April | 6.5 °C | 20.6 °C | 97.54 mm |
| May | 11.8 °C | 24.6 °C | 112.01 mm |
| June | 16.4 °C | 28.3 °C | 112.01 mm |
| July | 18.8 °C | 30.3 °C | 103.12 mm |
| August | 17.9 °C | 29.3 °C | 81.28 mm |
| September | 14.2 °C | 25.9 °C | 116.84 mm |
| October | 7.6 °C | 20.7 °C | 88.39 mm |
| November | 1.7 °C | 15 °C | 85.09 mm |
| December | -1.5 °C | 9.7 °C | 93.98 mm |
| Annual | 7.5 °C | 19.8 °C | 1153.91 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 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |