Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy.
| Min (1939) | 25th percen- tile | Median | 75th percen- tile | Mean | Most Recent Instantaneous Value Sep 4 | Max (1981) |
|---|---|---|---|---|---|---|
| 6.00 | 45 | 69 | 106 | 133 | 256 | 1510 |