| Chesterfield, MO | Silver Spring, MD | United States |
Rainfall | 43 | 44 | 38 |
Snowfall | 13 | 14 | 28 |
Precipitation | 103 | 112 | 106 |
Sunny | 202 | 202 | 205 |
Avg. July High | 89 | 88 | 86 |
Avg. Jan. Low | 21 | 25 | 22 |
Comfort Index (higher=better) | 7.2 | 7.3 | 7 |
UV Index | 4.3 | 4.1 | 4.3 |
Elevation | 472 | 341 | 2443 |