| Columbia, MD | Arlington, VA | United States |
Rainfall | 45 | 43.3 | 38.1 |
Snowfall | 17.3 | 14.9 | 27.8 |
Precipitation Days | 113.9 | 117 | 106.2 |
Sunny | 212 | 201 | 205 |
Avg. July High | 87.9 | 87.7 | 85.8 |
Avg. Jan. Low | 23.9 | 26.5 | 21.7 |
Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
UV Index | 3.9 | 4 | 4.3 |
Elevation ft. | 404 | 236 | 2443 |