| Fullerton, CA | Diamond Bar, CA | United States |
Rainfall | 14 | 19 | 38 |
Snowfall | 0 | 0 | 28 |
Precipitation | 32 | 32 | 106 |
Sunny | 283 | 286 | 205 |
Avg. July High | 85 | 91 | 86 |
Avg. Jan. Low | 46 | 43 | 22 |
Comfort Index (higher=better) | 9.3 | 8.8 | 7 |
UV Index | 5.9 | 6.2 | 4.3 |
Elevation | 164 | 696 | 2443 |