Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy.
| Most Recent Instantaneous Value Dec 21 | Min (1977) | 25th percen- tile | Median | Mean | 75th percen- tile | Max (1988) |
|---|---|---|---|---|---|---|
| -- unavailable -- | 92.0 | 165 | 230 | 271 | 340 | 926 |