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Columbia River in Washington

River62.1 mi

Around here

Around Columbia River

Lepage Park · 2.5 miJohn Day Lock and Dam, Lake Umatilla4.2 mi20 mi

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

About this river

Columbia River is a 62.1 mile river. Streamflow is measured at the USGS gauge Columbia River at the Dalles, OR (site 14105700). The National Hydrography Dataset places it at stream order 10. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1879 to 2026

Columbia River typically runs highest in June, at a median 401,000 cfs, and lowest in October, at 100,000 cfs. The highest flow on record for any single day is 1,230,000 cfs, in 1894.

Show the numbers
Typical flow by month at Columbia River at the Dalles, OR, in cfs
MonthTypical (cfs)Usual range (cfs)
January114,00083,800 to 158,000
February124,00088,600 to 164,000
March134,000105,000 to 174,000
April192,000149,000 to 250,500
May316,000248,000 to 390,000
June401,000277,500 to 526,000
July259,000184,000 to 340,000
August155,000131,000 to 190,000
September111,00098,150 to 127,500
October100,00087,500 to 116,000
November108,50087,150 to 130,000
December115,00085,000 to 147,000

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 147 years of record. Statistics published by the US Geological Survey for Columbia River at the Dalles, OR (site 14105700). 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 Columbia River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

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