Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1958) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Mar 12 | Max (1973) |
|---|---|---|---|---|---|---|
| 686 | 837 | 957 | 1050 | 1210 | 1470 | 1910 |