Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (2003) | 25th percen- tile | Median | Most Recent Instantaneous Value Jan 16 | Mean | 75th percen- tile | Max (2005) |
|---|---|---|---|---|---|---|
| 189 | 230 | 252 | 256 | 259 | 282 | 485 |