About this river
Long Prairie River is a 22.0 mile river near Hang Loose MN in Minnesota. Streamflow is measured at the USGS gauge Long Prairie River at Long Prairie, MN (site 05245100). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1972 to 2026
Long Prairie River typically runs highest in April, at a median 303 cfs, and lowest in January, at 76 cfs. The highest flow on record for any single day is 2,900 cfs, in 1972.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 76 | 48 to 107 | |
| February | 80 | 44 to 107 | |
| March | 121 | 72 to 232 | |
| April | 303 | 209 to 502 | |
| May | 281 | 185 to 415 | |
| June | 206 | 146 to 369 | |
| July | 181 | 103 to 282 | |
| August | 130 | 76 to 204 | |
| September | 111 | 64 to 221 | |
| October | 125 | 68 to 198 | |
| November | 104 | 68 to 173 | |
| December | 84 | 49 to 128 |
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 55 years of record. Statistics published by the US Geological Survey for Long Prairie River at Long Prairie, MN (site 05245100). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Long Prairie 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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