| Willowbrook, IL | Westmont, IL | United States |
Rainfall | 39 | 39 | 38 |
Snowfall | 31 | 31 | 28 |
Precipitation | 121 | 120 | 106 |
Sunny | 192 | 187 | 205 |
Avg. July High | 84 | 84 | 86 |
Avg. Jan. Low | 16 | 16 | 22 |
Comfort Index (higher=better) | 6.9 | 6.9 | 7 |
UV Index | 3.4 | 3.4 | 4.3 |
Elevation | 732 | 748 | 2443 |