About this river
Middle Fork Willamette River is an 18.0 mile river near Oregon River Runners in Oregon. Streamflow is measured at the USGS gauge Middle Fork Willamette River at Jasper, OR (site 14152000). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1906 to 2024
Middle Fork Willamette River typically runs highest in January, at a median 5,530 cfs, and lowest in July, at 1,960 cfs. The highest flow on record for any single day is 78,800 cfs, in 1907.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 5,530 | 3,320 to 9,340 | |
| February | 2,560 | 1,920 to 4,550 | |
| March | 2,560 | 1,880 to 4,360 | |
| April | 2,825 | 1,895 to 4,615 | |
| May | 3,730 | 2,060 to 5,010 | |
| June | 2,645 | 1,835 to 4,100 | |
| July | 1,960 | 1,580 to 2,400 | |
| August | 2,320 | 1,810 to 2,790 | |
| September | 2,620 | 1,950 to 3,525 | |
| October | 3,100 | 2,020 to 3,900 | |
| November | 4,505 | 2,550 to 6,055 | |
| December | 5,220 | 2,810 to 9,780 |
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 81 years of record. Statistics published by the US Geological Survey for Middle Fork Willamette River at Jasper, OR (site 14152000). 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 Middle Fork Willamette 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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