Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1998) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value May 20 | Max (2020) |
|---|---|---|---|---|---|---|
| 1500 | 1610 | 1900 | 1980 | 2090 | 2900 | 4460 |