| | Guerneville, CA | Antioch, CA | United States |
| Rainfall | 41.3 | 15.3 | 38.1 |
| Snowfall | 0 | 0 | 27.8 |
| Precipitation Days | 74.6 | 56.7 | 106.2 |
| Sunny | 261 | 263 | 205 |
| Avg. July High | 85.3 | 89.7 | 85.8 |
| Avg. Jan. Low | 37.4 | 39.7 | 21.7 |
| Comfort Index (higher=better) | 8.3 | 8.5 | 7 |
| UV Index | 4.9 | 5.4 | 4.3 |
| Elevation ft. | 59 | 43 | 2443 |