| | Union City, CA | Norwalk, CA | United States |
| Rainfall | 16.6 | 13.5 | 38.1 |
| Snowfall | 0 | 0 | 27.8 |
| Precipitation Days | 64.1 | 28.4 | 106.2 |
| Sunny | 265 | 281 | 205 |
| Avg. July High | 76.1 | 84.5 | 85.8 |
| Avg. Jan. Low | 42.3 | 46 | 21.7 |
| Comfort Index (higher=better) | 8.8 | 9.3 | 7 |
| UV Index | 5.4 | 6.2 | 4.3 |
| Elevation ft. | 66 | 92 | 2443 |