| Boston, MA | Castro Valley, CA | United States |
Rainfall | 47 | 21 | 38 |
Snowfall | 48 | 0 | 28 |
Precipitation | 130 | 66 | 106 |
Sunny | 200 | 261 | 205 |
Avg. July High | 82 | 76 | 86 |
Avg. Jan. Low | 19 | 42 | 22 |
Comfort Index (higher=better) | 6.9 | 8.6 | 7 |
UV Index | 3.4 | 5.4 | 4.3 |
Elevation | 46 | 161 | 2443 |