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 Aug 4 | Max (1956) |
|---|---|---|---|---|---|---|
| 694 | 807 | 880 | 899 | 951 | 1040 | 1900 |