| Rancho Cucamonga, CA | Brentwood, CA | United States |
Rainfall | 19 | 15 | 38 |
Snowfall | 0 | 0 | 28 |
Precipitation | 36 | 57 | 106 |
Sunny | 287 | 260 | 205 |
Avg. July High | 93 | 91 | 86 |
Avg. Jan. Low | 43 | 40 | 22 |
Comfort Index (higher=better) | 8.7 | 8.5 | 7 |
UV Index | 5.7 | 5.4 | 4.3 |
Elevation | 1207 | 79 | 2443 |