| | Morris, IL | Seneca, IL | United States |
| Rainfall | 37.6 | 37.4 | 38.1 |
| Snowfall | 22.4 | 22.6 | 27.8 |
| Precipitation Days | 117.7 | 114.2 | 106.2 |
| Sunny | 190 | 190 | 205 |
| Avg. July High | 84.5 | 84.1 | 85.8 |
| Avg. Jan. Low | 15.3 | 14.8 | 21.7 |
| Comfort Index (higher=better) | 7 | 7 | 7 |
| UV Index | 3.5 | 3.8 | 4.3 |
| Elevation ft. | 515 | 509 | 2443 |