| South San Francisco, CA | Sonoma, CA | United States |
Rainfall | 22 | 31 | 38 |
Snowfall | 0 | 0 | 28 |
Precipitation | 68 | 72 | 106 |
Sunny | 259 | 262 | 205 |
Avg. July High | 67 | 85 | 86 |
Avg. Jan. Low | 45 | 38 | 22 |
Comfort Index (higher=better) | 8.4 | 8.4 | 7 |
UV Index | 4.9 | 4.9 | 4.3 |
Elevation | 16 | 85 | 2443 |