| CLIMATE | St. Peters | San Francisco | United States |
| Rainfall (in.) | 40.4 | 20.1 | 36.5 |
| Snowfall (in.) | 16.6 | 0 | 25 |
| Precipitation Days | 108 | 64 | 100 |
| Sunny Days | 201 | 259 | 205 |
| Avg. July High | 90 | 71 | 86.5 |
| Avg. Jan. Low | 20.6 | 42.4 | 20.5 |
| Comfort Index (higher=better) | 34 | 75 | 44 |
| UV Index | 4.4 | 5.4 | 4.3 |
| Elevation ft. | 513 | 336 | 1,443 |