Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1936) | 25th percen- tile | Median | Most Recent Instantaneous Value Jan 19 | Mean | 75th percen- tile | Max (1973) |
|---|---|---|---|---|---|---|
| 730 | 894 | 965 | 989 | 1010 | 1070 | 1840 |