Lavalette, West Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6.9 °C (low) to 19.6 °C (high). Annual precipitation averages 1167.7 Millimeters. Lavalette is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.3 °C | 6.2 °C | 88.9 mm |
| February | -3.1 °C | 8.5 °C | 81.03 mm |
| March | 0.4 °C | 13.7 °C | 109.98 mm |
| April | 5.9 °C | 20.7 °C | 97.03 mm |
| May | 11.4 °C | 25.1 °C | 118.11 mm |
| June | 16.2 °C | 29.1 °C | 110.24 mm |
| July | 18.3 °C | 30.8 °C | 133.35 mm |
| August | 17.7 °C | 30.3 °C | 93.73 mm |
| September | 13.6 °C | 27.2 °C | 85.85 mm |
| October | 6.7 °C | 21 °C | 75.95 mm |
| November | 1.2 °C | 14.1 °C | 75.44 mm |
| December | -1.8 °C | 8.4 °C | 98.04 mm |
| Annual | 6.9 °C | 19.6 °C | 1167.65 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |