Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy.
| Min (1934) | 25th percen- tile | Median | Mean | Most Recent Instantaneous Value Jun 9 | 75th percen- tile | Max (2009) |
|---|---|---|---|---|---|---|
| 46.0 | 150 | 202 | 251 | 308 | 326 | 684 |