| | Copperopolis, CA | Valley Center, CA | United States |
| Rainfall | 28.5 | 14.6 | 38.1 |
| Snowfall | 0.2 | 0 | 27.8 |
| Precipitation Days | 70.4 | 38.8 | 106.2 |
| Sunny | 261 | 258 | 205 |
| Avg. July High | 95.8 | 88.1 | 85.8 |
| Avg. Jan. Low | 36.5 | 39.1 | 21.7 |
| Comfort Index (higher=better) | 8 | 8.7 | 7 |
| UV Index | 5.3 | 5.9 | 4.3 |
| Elevation ft. | 994 | 1312 | 2443 |