| | Tuscola, IL | Rockford, IL | United States |
| Rainfall | 40.3 | 37.1 | 38.1 |
| Snowfall | 14.7 | 35.1 | 27.8 |
| Precipitation Days | 100.6 | 116 | 106.2 |
| Sunny | 197 | 188 | 205 |
| Avg. July High | 84.6 | 83.7 | 85.8 |
| Avg. Jan. Low | 16.9 | 12.7 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 6.8 | 7 |
| UV Index | 3.9 | 3.5 | 4.3 |
| Elevation ft. | 653 | 718 | 2443 |