| | San Carlos, CA | Matthews, NC | United States |
| Rainfall | 26.8 | 44.1 | 38.1 |
| Snowfall | 0 | 3.5 | 27.8 |
| Precipitation Days | 70.1 | 104.7 | 106.2 |
| Sunny | 264 | 213 | 205 |
| Avg. July High | 80.4 | 90 | 85.8 |
| Avg. Jan. Low | 38.9 | 30.5 | 21.7 |
| Comfort Index (higher=better) | 8.4 | 7.5 | 7 |
| UV Index | 4.9 | 4.6 | 4.3 |
| Elevation ft. | 30 | 728 | 2443 |