| | Mackinaw, MI | Mackinac Island, MI | United States |
| Rainfall | 30.4 | 30.2 | 38.1 |
| Snowfall | 89.8 | 88.9 | 27.8 |
| Precipitation Days | 132 | 131.1 | 106.2 |
| Sunny | 166 | 159 | 205 |
| Avg. July High | 77.1 | 76.3 | 85.8 |
| Avg. Jan. Low | 10.1 | 9.7 | 21.7 |
| Comfort Index (higher=better) | 6.1 | 6.1 | 7 |
| UV Index | 3.4 | 3.1 | 4.3 |
| Elevation ft. | 683 | 594 | 2443 |