| Mill Valley, CA | Great Falls, VA | United States |
Rainfall | 41 | 42 | 38 |
Snowfall | 0 | 22 | 28 |
Precipitation | 78 | 116 | 106 |
Sunny | 255 | 196 | 205 |
Avg. July High | 77 | 86 | 86 |
Avg. Jan. Low | 43 | 24 | 22 |
Comfort Index (higher=better) | 8.4 | 7.3 | 7 |
UV Index | 5.2 | 4 | 4.3 |
Elevation | 82 | 344 | 2443 |