About this river
Au Gres River is a 14.8 mile river near White's Canoe Livery & Campground in Michigan. Streamflow is measured at the USGS gauge AU Gres River at S Mackinaw RD near AU Gres, MI (site 04138536). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2022 to 2026
Au Gres River typically runs highest in March, at a median 304 cfs, and lowest in September, at 28 cfs. The highest flow on record for any single day is 2,230 cfs, in 2026.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 103 | 60 to 145 | |
| February | 76 | 54 to 230 | |
| March | 304 | 196 to 594 | |
| April | 283 | 188 to 741 | |
| May | 132 | 110 to 186 | |
| June | 66 | 46 to 112 | |
| July | 52 | 42 to 90 | |
| August | 35 | 27 to 53 | |
| September | 28 | 25 to 38 | |
| October | 30 | 25 to 42 | |
| November | 51 | 42 to 65 | |
| December | 63 | 54 to 86 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 4 years of record. Statistics published by the US Geological Survey for AU Gres River at S Mackinaw RD near AU Gres, MI (site 04138536). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Au Gres River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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