| Ashburn, VA | Charles Town, WV | United States |
Rainfall | 42 | 40.2 | 38.1 |
Snowfall | 21.5 | 20.1 | 27.8 |
Precipitation Days | 116.4 | 116.8 | 106.2 |
Sunny | 197 | 197 | 205 |
Avg. July High | 86.9 | 86.1 | 85.8 |
Avg. Jan. Low | 22.8 | 21.3 | 21.7 |
Comfort Index (higher=better) | 7.2 | 7.2 | 7 |
UV Index | 4 | 3.9 | 4.3 |
Elevation ft. | 295 | 512 | 2443 |