Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (2003) | 25th percen- tile | Most Recent Instantaneous Value Feb 20 | Mean | Median | 75th percen- tile | Max (2018) |
|---|---|---|---|---|---|---|
| 540 | 638 | 727 | 729 | 729 | 792 | 1010 |