Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1936) | 25th percen- tile | Median | Mean | Most Recent Instantaneous Value Mar 1 | 75th percen- tile | Max (2017) |
|---|---|---|---|---|---|---|
| 640 | 920 | 995 | 1020 | 1060 | 1070 | 1910 |