Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1940) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Mar 13 | Max (1990) |
|---|---|---|---|---|---|---|
| 773 | 930 | 1070 | 1180 | 1330 | 1890 | 2220 |