Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy.
| Min (1941) | 25th percen- tile | Most Recent Instantaneous Value May 19 | Median | Mean | 75th percen- tile | Max (1945) |
|---|---|---|---|---|---|---|
| 85.0 | 227 | 364 | 381 | 729 | 830 | 5380 |