| | Grosse Ile, MI | Dexter, MI | United States |
| Rainfall | 34 | 33.7 | 38.1 |
| Snowfall | 34.6 | 41 | 27.8 |
| Precipitation Days | 124.3 | 134 | 106.2 |
| Sunny | 180 | 180 | 205 |
| Avg. July High | 83.8 | 81.9 | 85.8 |
| Avg. Jan. Low | 18.2 | 15.5 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 6.7 | 7 |
| UV Index | 3.3 | 3.3 | 4.3 |
| Elevation ft. | 597 | 869 | 2443 |