| Grass Valley, CA | Redwood City, CA | United States |
Rainfall | 55 | 22.8 | 38.1 |
Snowfall | 11.3 | 0.2 | 27.8 |
Precipitation Days | 83.8 | 61.8 | 106.2 |
Sunny | 243 | 255 | 205 |
Avg. July High | 87.2 | 81.1 | 85.8 |
Avg. Jan. Low | 34.2 | 39.6 | 21.7 |
Comfort Index (higher=better) | 7.9 | 8.6 | 7 |
UV Index | 5 | 4.9 | 4.3 |
Elevation ft. | 2411 | 20 | 2443 |