| | Chula Vista, CA | Granite Hills, CA | United States |
| Rainfall | 10.9 | 14.9 | 38.1 |
| Snowfall | 0 | 0 | 27.8 |
| Precipitation Days | 37.4 | 42.3 | 106.2 |
| Sunny | 261 | 259 | 205 |
| Avg. July High | 78 | 88.6 | 85.8 |
| Avg. Jan. Low | 46.6 | 42.8 | 21.7 |
| Comfort Index (higher=better) | 9.3 | 8.9 | 7 |
| UV Index | 5.9 | 5.9 | 4.3 |
| Elevation ft. | 66 | 659 | 2443 |