| | Ross, CA | Boulder, CO | United States |
| Rainfall | 40.6 | 18.1 | 38.1 |
| Snowfall | 0 | 71.1 | 27.8 |
| Precipitation Days | 77.7 | 88 | 106.2 |
| Sunny | 259 | 245 | 205 |
| Avg. July High | 78.3 | 88.1 | 85.8 |
| Avg. Jan. Low | 42 | 18.9 | 21.7 |
| Comfort Index (higher=better) | 8.5 | 7.1 | 7 |
| UV Index | 5.2 | 5.8 | 4.3 |
| Elevation ft. | 30 | 5328 | 2443 |