| | El Cajon, CA | Chapel Hill, TN | United States |
| Rainfall | 14.1 | 55.1 | 38.1 |
| Snowfall | 0 | 2.9 | 27.8 |
| Precipitation Days | 39.5 | 119.1 | 106.2 |
| Sunny | 260 | 203 | 205 |
| Avg. July High | 86.1 | 89 | 85.8 |
| Avg. Jan. Low | 43.7 | 26.3 | 21.7 |
| Comfort Index (higher=better) | 9.1 | 7.3 | 7 |
| UV Index | 5.9 | 4.4 | 4.3 |
| Elevation ft. | 433 | 692 | 2443 |