| | Alamo, CA | Colfax, CA | United States |
| Rainfall | 23.2 | 47.1 | 38.1 |
| Snowfall | 0 | 10.2 | 27.8 |
| Precipitation Days | 66.6 | 78.3 | 106.2 |
| Sunny | 262 | 246 | 205 |
| Avg. July High | 83.3 | 87.3 | 85.8 |
| Avg. Jan. Low | 39.5 | 34.3 | 21.7 |
| Comfort Index (higher=better) | 8.5 | 7.9 | 7 |
| UV Index | 5.4 | 4.8 | 4.3 |
| Elevation ft. | 259 | 2425 | 2443 |