| Rochester Hills, MI | Grass Valley, CA | United States |
Rainfall | 32 | 55 | 38.1 |
Snowfall | 33.1 | 11.3 | 27.8 |
Precipitation Days | 123.4 | 83.8 | 106.2 |
Sunny | 179 | 243 | 205 |
Avg. July High | 82.3 | 87.2 | 85.8 |
Avg. Jan. Low | 15.7 | 34.2 | 21.7 |
Comfort Index (higher=better) | 6.8 | 7.9 | 7 |
UV Index | 3.2 | 5 | 4.3 |
Elevation ft. | 820 | 2411 | 2443 |