| Gaithersburg, MD | Capitol Heights, MD | United States |
Rainfall | 42.2 | 43.8 | 38.1 |
Snowfall | 21.4 | 13.3 | 27.8 |
Precipitation Days | 112.7 | 109.8 | 106.2 |
Sunny | 202 | 205 | 205 |
Avg. July High | 85.1 | 88.2 | 85.8 |
Avg. Jan. Low | 25 | 24.3 | 21.7 |
Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
UV Index | 4.1 | 4.3 | 4.3 |
Elevation ft. | 502 | 121 | 2443 |