| | Peru, IL | Chillicothe, IL | United States |
| Rainfall | 37 | 39 | 38.1 |
| Snowfall | 22.2 | 21.3 | 27.8 |
| Precipitation Days | 115.1 | 104.1 | 106.2 |
| Sunny | 191 | 189 | 205 |
| Avg. July High | 85.1 | 86.1 | 85.8 |
| Avg. Jan. Low | 14.2 | 16.7 | 21.7 |
| Comfort Index (higher=better) | 7 | 7.1 | 7 |
| UV Index | 3.8 | 3.8 | 4.3 |
| Elevation ft. | 600 | 502 | 2443 |