| | Holtville, CA | Las Vegas, NV | United States |
| Rainfall | 2.8 | 5 | 38.1 |
| Snowfall | 0 | 0.3 | 27.8 |
| Precipitation Days | 14.1 | 26.1 | 106.2 |
| Sunny | 315 | 294 | 205 |
| Avg. July High | 106.8 | 103.8 | 85.8 |
| Avg. Jan. Low | 41.7 | 37.1 | 21.7 |
| Comfort Index (higher=better) | 7.5 | 7.4 | 7 |
| UV Index | 6 | 5.8 | 4.3 |
| Elevation ft. | -10 | 2001 | 2443 |