| | Princeton, IL | Peru, IL | United States |
| Rainfall | 37.4 | 37 | 38.1 |
| Snowfall | 24.9 | 22.2 | 27.8 |
| Precipitation Days | 92.8 | 115.1 | 106.2 |
| Sunny | 194 | 191 | 205 |
| Avg. July High | 85.1 | 85.1 | 85.8 |
| Avg. Jan. Low | 14.1 | 14.2 | 21.7 |
| Comfort Index (higher=better) | 7 | 7 | 7 |
| UV Index | 3.7 | 3.8 | 4.3 |
| Elevation ft. | 718 | 600 | 2443 |