| Chesterfield, MO | San Mateo, CA | United States |
Rainfall | 43 | 24 | 38 |
Snowfall | 13 | 0 | 28 |
Precipitation | 103 | 77 | 106 |
Sunny | 202 | 265 | 205 |
Avg. July High | 89 | 74 | 86 |
Avg. Jan. Low | 21 | 42 | 22 |
Comfort Index (higher=better) | 7.2 | 8.5 | 7 |
UV Index | 4.3 | 4.9 | 4.3 |
Elevation | 472 | 46 | 2443 |