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 Jun 12 | Max (1967) |
|---|---|---|---|---|---|---|
| 805 | 918 | 1030 | 1060 | 1150 | 1300 | 1900 |