| Millbrae, CA | Castle Rock, CO | United States |
Rainfall | 25 | 19 | 38 |
Snowfall | 0 | 78 | 28 |
Precipitation | 69 | 70 | 106 |
Sunny | 262 | 243 | 205 |
Avg. July High | 70 | 86 | 86 |
Avg. Jan. Low | 46 | 19 | 22 |
Comfort Index (higher=better) | 8.6 | 7.2 | 7 |
UV Index | 4.9 | 4.8 | 4.3 |
Elevation | 33 | 6224 | 2443 |