| | Azusa, CA | Pasadena, CA | United States |
| Rainfall | 19.5 | 21.4 | 38.1 |
| Snowfall | 0 | 0 | 27.8 |
| Precipitation Days | 37.6 | 39.7 | 106.2 |
| Sunny | 287 | 286 | 205 |
| Avg. July High | 88.9 | 87.5 | 85.8 |
| Avg. Jan. Low | 43.9 | 45.1 | 21.7 |
| Comfort Index (higher=better) | 9 | 9.1 | 7 |
| UV Index | 6.2 | 6.2 | 4.3 |
| Elevation ft. | 610 | 863 | 2443 |