| | Streator, IL | Byron, IL | United States |
| Rainfall | 37.8 | 35.6 | 38.1 |
| Snowfall | 23.6 | 30.5 | 27.8 |
| Precipitation Days | 111.6 | 112.1 | 106.2 |
| Sunny | 189 | 190 | 205 |
| Avg. July High | 83.8 | 83.6 | 85.8 |
| Avg. Jan. Low | 14.9 | 12.1 | 21.7 |
| Comfort Index (higher=better) | 7 | 6.8 | 7 |
| UV Index | 3.8 | 3.6 | 4.3 |
| Elevation ft. | 620 | 728 | 2443 |