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Yakima River in Washington

River62.1 mi
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Around here

Around Yakima River

Horse Heaven Hills15.7 miUmatilla National Wildlife Refuge24.1 mi20 mi

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

About this river

Yakima River is a 62.1 mile river. Streamflow is measured at the USGS gauge Yakima River above Ahtanum Creek at Union Gap, WA (site 12500450). The National Hydrography Dataset places it at stream order 8. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1967 to 2026

Yakima River typically runs highest in May, at a median 5,120 cfs, and lowest in October, at 1,680 cfs. The highest flow on record for any single day is 44,000 cfs, in 1996.

Show the numbers
Typical flow by month at Yakima River above Ahtanum Creek at Union Gap, WA, in cfs
MonthTypical (cfs)Usual range (cfs)
January2,3301,510 to 3,400
February2,3901,810 to 3,960
March3,0502,190 to 4,580
April4,1302,820 to 6,180
May5,1203,570 to 7,950
June4,1453,215 to 7,010
July3,4703,170 to 3,750
August3,3403,070 to 3,560
September2,5752,390 to 2,805
October1,6801,390 to 2,020
November1,7251,360 to 2,215
December1,8901,410 to 2,690

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 59 years of record. Statistics published by the US Geological Survey for Yakima River above Ahtanum Creek at Union Gap, WA (site 12500450). 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 Yakima River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

  • Riverfront ParkYakima RiverPublic
  • Mabton BridgeYakima RiverPublic
  • Wye ParkColumbia River - Lake WallulaPublic
  • Benton CityYakima RiverPublic
  • Columbia PointColumbia River - Lake WallulaPublic
  • Howard Amon ParkColumbia River - Lake WallulaPublic
  • Hyde RoadYakima RiverPublic
  • Leslie Groves ParkColumbia River - Lake WallulaPublic

Made to print

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This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.

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