Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1957) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Jan 11 | Max (2008) |
|---|---|---|---|---|---|---|
| 566 | 790 | 904 | 917 | 1020 | 1160 | 1630 |