| | Alamo, CA | Plymouth, CA | United States |
| Rainfall | 23.2 | 30.1 | 38.1 |
| Snowfall | 0 | 0.4 | 27.8 |
| Precipitation Days | 66.6 | 66.1 | 106.2 |
| Sunny | 262 | 263 | 205 |
| Avg. July High | 83.3 | 94.1 | 85.8 |
| Avg. Jan. Low | 39.5 | 36.8 | 21.7 |
| Comfort Index (higher=better) | 8.5 | 8 | 7 |
| UV Index | 5.4 | 5.1 | 4.3 |
| Elevation ft. | 259 | 1083 | 2443 |