| | Washington, DC | Ross, CA | United States |
| Rainfall | 43.3 | 40.6 | 38.1 |
| Snowfall | 13.7 | 0 | 27.8 |
| Precipitation Days | 114.3 | 77.7 | 106.2 |
| Sunny | 203 | 259 | 205 |
| Avg. July High | 88.5 | 78.3 | 85.8 |
| Avg. Jan. Low | 26.5 | 42 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 8.5 | 7 |
| UV Index | 4.1 | 5.2 | 4.3 |
| Elevation ft. | 23 | 30 | 2443 |