Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1956) | 25th percen- tile | Median | Mean | Most Recent Instantaneous Value Oct 15 | 75th percen- tile | Max (1986) |
|---|---|---|---|---|---|---|
| 630 | 757 | 855 | 918 | 994 | 1030 | 1690 |