| Cornwall, CT | Potomac, MD | United States |
Rainfall | 50.6 | 42 | 38.1 |
Snowfall | 62.3 | 16.8 | 27.8 |
Precipitation Days | 131.8 | 114 | 106.2 |
Sunny | 198 | 201 | 205 |
Avg. July High | 78.5 | 85.7 | 85.8 |
Avg. Jan. Low | 12.8 | 25.3 | 21.7 |
Comfort Index (higher=better) | 6.5 | 7.3 | 7 |
UV Index | 3.4 | 4.1 | 4.3 |
Elevation ft. | 718 | 361 | 2443 |