Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1958) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Sep 13 | Max (1986) |
|---|---|---|---|---|---|---|
| 538 | 700 | 804 | 827 | 896 | 916 | 2060 |