| | Rockford, IL | Holland, MI | United States |
| Rainfall | 37.1 | 35.6 | 38.1 |
| Snowfall | 35.1 | 79.3 | 27.8 |
| Precipitation Days | 116 | 117.9 | 106.2 |
| Sunny | 188 | 165 | 205 |
| Avg. July High | 83.7 | 81.8 | 85.8 |
| Avg. Jan. Low | 12.7 | 19.7 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 6.7 | 7 |
| UV Index | 3.5 | 3.2 | 4.3 |
| Elevation ft. | 718 | 610 | 2443 |