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Willamette River in Oregon

River62.1 mi

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Around Willamette River

Baskett Slough National Wildlife Ref…7.9 miAnkeny National Wildlife Refuge8.2 mi20 mi

Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US

About this river

Willamette River is a 62.1 mile river. Streamflow is measured at the USGS gauge Willamette River at Newberg, OR (site 14197900). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

2002 to 2026

Willamette River typically runs highest in January, at a median 47,600 cfs, and lowest in August, at 7,070 cfs. The highest flow on record for any single day is 164,000 cfs, in 2012.

Show the numbers
Typical flow by month at Willamette River at Newberg, OR, in cfs
MonthTypical (cfs)Usual range (cfs)
January47,60028,600 to 70,400
February27,70017,800 to 44,800
March27,60020,500 to 43,600
April25,65020,050 to 38,500
May18,10015,700 to 28,000
June12,20010,350 to 18,500
July7,4006,800 to 8,280
August7,0706,540 to 7,600
September8,4757,410 to 9,575
October11,7009,480 to 13,700
November22,40013,650 to 33,650
December35,10017,300 to 66,400

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 24 years of record. Statistics published by the US Geological Survey for Willamette River at Newberg, OR (site 14197900). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

8 mapped launches sit in the mapped area of Willamette River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

  • Alton Baker ParkWillamette RiverPublic
  • Hendrick's Bridge ParkMcKenzie RiverPublic
  • Bellinger LandingMcKenzie RiverPublic
  • Hayden BridgeMcKenzie RiverPublic
  • Taylor Landing RV Park and MarinaMcKenzie RiverPublic
  • WaltervilleMcKenzie RiverPublic
  • Harvest LaneMcKenzie RiverPublic
  • Deadmond's Ferry LandingMcKenzie RiverPublic
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