Jane Lew, West Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.2 °C (low) to 18.4 °C (high). Annual precipitation averages 1265.7 Millimeters. Jane Lew is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.9 °C | 4.9 °C | 92.96 mm |
| February | -4.9 °C | 6.8 °C | 88.14 mm |
| March | -1.4 °C | 12 °C | 109.47 mm |
| April | 4 °C | 19.6 °C | 106.93 mm |
| May | 9.6 °C | 24.1 °C | 130.05 mm |
| June | 14.4 °C | 28.1 °C | 132.84 mm |
| July | 16.8 °C | 29.7 °C | 128.52 mm |
| August | 16.1 °C | 29.2 °C | 108.46 mm |
| September | 12.1 °C | 26.1 °C | 96.27 mm |
| October | 5.3 °C | 19.7 °C | 92.46 mm |
| November | -0.3 °C | 12.8 °C | 81.53 mm |
| December | -3.3 °C | 7.2 °C | 98.04 mm |
| Annual | 5.2 °C | 18.4 °C | 1265.67 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |