Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy.
| Min (2007) | 25th percen- tile | Median | Mean | 75th percen- tile | Max (2021) | Most Recent Instantaneous Value Aug 1 |
|---|---|---|---|---|---|---|
| 75.7 | 88 | 95 | 97 | 105 | 128 | 137 |