| Foster City, CA | San Mateo, CA | United States |
Rainfall | 19.1 | 24.4 | 38.1 |
Snowfall | 0 | 0 | 27.8 |
Precipitation Days | 62 | 76.9 | 106.2 |
Sunny | 262 | 265 | 205 |
Avg. July High | 77.9 | 74.1 | 85.8 |
Avg. Jan. Low | 41.1 | 42.2 | 21.7 |
Comfort Index (higher=better) | 8.7 | 8.5 | 7 |
UV Index | 4.9 | 4.9 | 4.3 |
Elevation ft. | 7 | 46 | 2443 |