| Rock Falls, IL | Hillcrest, IL | United States |
Rainfall | 38 | 36 | 38 |
Snowfall | 29 | 28 | 28 |
Precipitation | 100 | 109 | 106 |
Sunny | 198 | 191 | 205 |
Avg. July High | 84 | 83 | 86 |
Avg. Jan. Low | 12 | 12 | 22 |
Comfort Index (higher=better) | 7 | 6.8 | 7 |
UV Index | 3.6 | 3.6 | 4.3 |
Elevation | 646 | 830 | 2443 |