| Castle Rock, CO | St. Helena, CA | United States |
Rainfall | 18.6 | 37.1 | 38.1 |
Snowfall | 78.3 | 0 | 27.8 |
Precipitation Days | 70 | 70.5 | 106.2 |
Sunny | 243 | 263 | 205 |
Avg. July High | 85.5 | 88.8 | 85.8 |
Avg. Jan. Low | 18.6 | 37.6 | 21.7 |
Comfort Index (higher=better) | 7.2 | 8.3 | 7 |
UV Index | 4.8 | 5.4 | 4.3 |
Elevation ft. | 6224 | 253 | 2443 |