| | Gridley, CA | Willows, CA | United States |
| Rainfall | 28.1 | 24.3 | 38.1 |
| Snowfall | 0.1 | 0.1 | 27.8 |
| Precipitation Days | 60.3 | 62.3 | 106.2 |
| Sunny | 247 | 249 | 205 |
| Avg. July High | 95.7 | 94.6 | 85.8 |
| Avg. Jan. Low | 38.6 | 36.5 | 21.7 |
| Comfort Index (higher=better) | 8.1 | 8.1 | 7 |
| UV Index | 4.9 | 5 | 4.3 |
| Elevation ft. | 95 | 138 | 2443 |