| | Dubuque, IA | Charleston, IL | United States |
| Rainfall | 36.4 | 40.3 | 38.1 |
| Snowfall | 37.4 | 15.1 | 27.8 |
| Precipitation Days | 116.1 | 111.3 | 106.2 |
| Sunny | 194 | 202 | 205 |
| Avg. July High | 83.4 | 86.2 | 85.8 |
| Avg. Jan. Low | 10.6 | 20.2 | 21.7 |
| Comfort Index (higher=better) | 6.7 | 7.2 | 7 |
| UV Index | 3.9 | 4.1 | 4.3 |
| Elevation ft. | 623 | 673 | 2443 |