Galloway, 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 17.5 °C (high). Annual precipitation averages 1248.1 Millimeters. Galloway 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.9 °C | 4.6 °C | 95.5 mm |
| February | -4.9 °C | 6.4 °C | 87.88 mm |
| March | -1.3 °C | 11.4 °C | 104.9 mm |
| April | 4.1 °C | 18.5 °C | 104.14 mm |
| May | 9.6 °C | 22.9 °C | 125.22 mm |
| June | 14.3 °C | 26.9 °C | 122.17 mm |
| July | 16.7 °C | 28.6 °C | 142.75 mm |
| August | 15.8 °C | 28.1 °C | 103.12 mm |
| September | 11.9 °C | 25.2 °C | 94.49 mm |
| October | 5.3 °C | 18.8 °C | 87.38 mm |
| November | 0 °C | 12.3 °C | 80.77 mm |
| December | -3.3 °C | 6.8 °C | 99.82 mm |
| Annual | 5.2 °C | 17.5 °C | 1248.14 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 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 |