New Cumberland, West Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.6 °C (low) to 16.7 °C (high). Annual precipitation averages 1064.8 Millimeters. New Cumberland is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.9 °C | 2.8 °C | 83.06 mm |
| February | -5.3 °C | 4.6 °C | 63.25 mm |
| March | -1.4 °C | 9.6 °C | 89.15 mm |
| April | 4.1 °C | 17.4 °C | 95.25 mm |
| May | 9.8 °C | 22.6 °C | 100.58 mm |
| June | 14.7 °C | 26.9 °C | 114.55 mm |
| July | 17.2 °C | 28.9 °C | 110.24 mm |
| August | 16.4 °C | 28.3 °C | 90.68 mm |
| September | 12.8 °C | 24.9 °C | 87.88 mm |
| October | 6.6 °C | 18.2 °C | 76.96 mm |
| November | 1.1 °C | 11.1 °C | 73.66 mm |
| December | -2.9 °C | 5.2 °C | 79.5 mm |
| Annual | 5.6 °C | 16.7 °C | 1064.76 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |