| Ontario, CA | San Tan Valley, AZ | United States |
Rainfall | 16 | 10 | 38 |
Snowfall | 0 | 0 | 28 |
Precipitation | 31 | 32 | 106 |
Sunny | 279 | 292 | 205 |
Avg. July High | 92 | 105 | 86 |
Avg. Jan. Low | 43 | 39 | 22 |
Comfort Index (higher=better) | 8.8 | 7.3 | 7 |
UV Index | 5.7 | 6.2 | 4.3 |
Elevation | 1004 | 1516 | 2443 |