Romney, West Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.7 °C (low) to 18.2 °C (high). Annual precipitation averages 953.8 Millimeters. Romney is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6 °C | 4.7 °C | 65.79 mm |
| February | -5.3 °C | 6.8 °C | 55.63 mm |
| March | -1.5 °C | 11.7 °C | 82.55 mm |
| April | 3.4 °C | 19 °C | 80.26 mm |
| May | 9 °C | 23.7 °C | 98.3 mm |
| June | 13.9 °C | 28.1 °C | 90.42 mm |
| July | 16.3 °C | 30.3 °C | 102.62 mm |
| August | 15.4 °C | 29.4 °C | 83.82 mm |
| September | 11.2 °C | 25.9 °C | 99.57 mm |
| October | 4.8 °C | 19.6 °C | 63.5 mm |
| November | -0.6 °C | 12.7 °C | 62.23 mm |
| December | -3.7 °C | 6.8 °C | 69.09 mm |
| Annual | 4.7 °C | 18.2 °C | 953.78 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |