| | Rock Island, IL | La Harpe, IL | United States |
| Rainfall | 37 | 40.3 | 38.1 |
| Snowfall | 28.2 | 22.2 | 27.8 |
| Precipitation Days | 115.3 | 99.1 | 106.2 |
| Sunny | 198 | 201 | 205 |
| Avg. July High | 84.7 | 86 | 85.8 |
| Avg. Jan. Low | 14.5 | 15.8 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7.1 | 7 |
| UV Index | 3.7 | 3.8 | 4.3 |
| Elevation ft. | 561 | 699 | 2443 |