| | Belvidere, IL | Washington, IL | United States |
| Rainfall | 36.8 | 38.7 | 38.1 |
| Snowfall | 34.7 | 23.5 | 27.8 |
| Precipitation Days | 116 | 108.4 | 106.2 |
| Sunny | 189 | 194 | 205 |
| Avg. July High | 83.7 | 86 | 85.8 |
| Avg. Jan. Low | 12.7 | 15.6 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 7.1 | 7 |
| UV Index | 3.7 | 3.9 | 4.3 |
| Elevation ft. | 784 | 761 | 2443 |