Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy.
| Most Recent Instantaneous Value Feb 20 | Min (1959) | 25th percen- tile | Median | Mean | 75th percen- tile | Max (1981) |
|---|---|---|---|---|---|---|
| -- unavailable -- | 52.0 | 156 | 300 | 845 | 858 | 8000 |