| | Willows, CA | Hayward, CA | United States |
| Rainfall | 24.3 | 18 | 38.1 |
| Snowfall | 0.1 | 0 | 27.8 |
| Precipitation Days | 62.3 | 64.7 | 106.2 |
| Sunny | 249 | 257 | 205 |
| Avg. July High | 94.6 | 76.2 | 85.8 |
| Avg. Jan. Low | 36.5 | 42.1 | 21.7 |
| Comfort Index (higher=better) | 8.1 | 8.7 | 7 |
| UV Index | 5 | 5.4 | 4.3 |
| Elevation ft. | 138 | 105 | 2443 |