| South San Francisco, CA | Boston, MA | United States |
Rainfall | 22 | 47 | 38 |
Snowfall | 0 | 48 | 28 |
Precipitation | 68 | 130 | 106 |
Sunny | 259 | 200 | 205 |
Avg. July High | 67 | 82 | 86 |
Avg. Jan. Low | 45 | 19 | 22 |
Comfort Index (higher=better) | 8.4 | 6.9 | 7 |
UV Index | 4.9 | 3.4 | 4.3 |
Elevation | 16 | 46 | 2443 |