| | Cairo, IL | Champaign, IL | United States |
| Rainfall | 47.7 | 40.7 | 38.1 |
| Snowfall | 6.9 | 20.3 | 27.8 |
| Precipitation Days | 103.4 | 111 | 106.2 |
| Sunny | 218 | 194 | 205 |
| Avg. July High | 89.2 | 84.4 | 85.8 |
| Avg. Jan. Low | 25.5 | 16.6 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.1 | 7 |
| UV Index | 4.1 | 4 | 4.3 |
| Elevation ft. | 312 | 738 | 2443 |