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North Fork Green River in Washington

River10.8 mi
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Around here

Around North Fork Green River

2 mi

Data Source: Recreation.gov · Source: USGS GNIS · Thermal springs: NOAA NCEI (1980) · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)

About this river

North Fork Green River is a 10.8 mile river. Streamflow is measured at the USGS gauge Green River below Howard at Hanson Dam, WA (site 12105900). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1961 to 2026

North Fork Green River typically runs highest in May, at a median 1,160 cfs, and lowest in August, at 256 cfs. The highest flow on record for any single day is 10,400 cfs, in 1965.

Show the numbers
Typical flow by month at Green River below Howard at Hanson Dam, WA, in cfs
MonthTypical (cfs)Usual range (cfs)
January1,100682 to 1,970
February975688 to 1,580
March912633 to 1,350
April1,135783 to 1,610
May1,160721 to 1,690
June583374 to 950
July333258 to 445
August256234 to 302
September280235 to 363
October453287 to 611
November917524 to 1,460
December997653 to 1,600

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 66 years of record. Statistics published by the US Geological Survey for Green River below Howard at Hanson Dam, WA (site 12105900). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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