| | Marshall, VA | Laurel, MD | United States |
| Rainfall | 44.3 | 44.5 | 38.1 |
| Snowfall | 20.3 | 13.2 | 27.8 |
| Precipitation Days | 113.8 | 108.2 | 106.2 |
| Sunny | 197 | 207 | 205 |
| Avg. July High | 86 | 87.8 | 85.8 |
| Avg. Jan. Low | 23.1 | 23.7 | 21.7 |
| Comfort Index (higher=better) | 7.4 | 7.3 | 7 |
| UV Index | 4.3 | 4.3 | 4.3 |
| Elevation ft. | 682 | 167 | 2443 |