| | Mascoutah, IL | Shiloh, IL | United States |
| Rainfall | 41.9 | 42.4 | 38.1 |
| Snowfall | 11.6 | 12.3 | 27.8 |
| Precipitation Days | 95 | 100.4 | 106.2 |
| Sunny | 199 | 201 | 205 |
| Avg. July High | 89.3 | 89.2 | 85.8 |
| Avg. Jan. Low | 22.1 | 22 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.2 | 7 |
| UV Index | 4.1 | 4.1 | 4.3 |
| Elevation ft. | 430 | 663 | 2443 |