| | Damascus, MD | Clarksburg, MD | United States |
| Rainfall | 43.8 | 43.5 | 38.1 |
| Snowfall | 25.6 | 25.2 | 27.8 |
| Precipitation Days | 117.1 | 116.1 | 106.2 |
| Sunny | 202 | 198 | 205 |
| Avg. July High | 84.9 | 84.9 | 85.8 |
| Avg. Jan. Low | 25.3 | 25.3 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
| UV Index | 4.1 | 4.1 | 4.3 |
| Elevation ft. | 833 | 663 | 2443 |