Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1958) | 25th percen- tile | Median | Most Recent Instantaneous Value Jun 9 | Mean | 75th percen- tile | Max (2009) |
|---|---|---|---|---|---|---|
| 640 | 841 | 984 | 999 | 1010 | 1110 | 1860 |