| Manassas, VA | Winnetka, IL | United States |
Rainfall | 43 | 36 | 38 |
Snowfall | 22 | 36 | 28 |
Precipitation | 120 | 125 | 106 |
Sunny | 196 | 188 | 205 |
Avg. July High | 88 | 83 | 86 |
Avg. Jan. Low | 24 | 17 | 22 |
Comfort Index (higher=better) | 7.3 | 6.9 | 7 |
UV Index | 4.1 | 3.6 | 4.3 |
Elevation | 308 | 653 | 2443 |