| Silver Spring, MD | Boulder, CO | United States |
Rainfall | 44 | 18 | 38 |
Snowfall | 14 | 71 | 28 |
Precipitation | 112 | 88 | 106 |
Sunny | 202 | 245 | 205 |
Avg. July High | 88 | 88 | 86 |
Avg. Jan. Low | 25 | 19 | 22 |
Comfort Index (higher=better) | 7.3 | 7.1 | 7 |
UV Index | 4.1 | 5.8 | 4.3 |
Elevation | 341 | 5328 | 2443 |