| Columbia, MD | Mount Airy, MD | United States |
Rainfall | 45 | 44 | 38 |
Snowfall | 17 | 26 | 28 |
Precipitation | 114 | 115 | 106 |
Sunny | 212 | 194 | 205 |
Avg. July High | 88 | 85 | 86 |
Avg. Jan. Low | 24 | 23 | 22 |
Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
UV Index | 3.9 | 4.2 | 4.3 |
Elevation | 404 | 774 | 2443 |