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Alpine Adventures

South Fork Snoqualmie River near Issaquah, WA

River29.7 mi
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Around here

Around South Fork Snoqualmie River

Tinkham Campground11.8 miMiddle Fork Campground12.1 mi5 mi

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

About this river

South Fork Snoqualmie River is a 29.7 mile river near Alpine Adventures in Washington. Streamflow is measured at the USGS gauge SF Snoqualmie River above Alice Creek near Garcia, WA (site 12143400). 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

South Fork Snoqualmie River typically runs highest in May, at a median 483 cfs, and lowest in August, at 45 cfs. The highest flow on record for any single day is 6,950 cfs, in 1991.

Show the numbers
Typical flow by month at SF Snoqualmie River above Alice Creek near Garcia, WA, in cfs
MonthTypical (cfs)Usual range (cfs)
January216135 to 409
February199135 to 320
March221155 to 336
April322237 to 460
May483360 to 682
June351235 to 578
July10678 to 191
August4537 to 70
September4533 to 80
October10853 to 208
November263160 to 421
December215148 to 389

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 65 years of record. Statistics published by the US Geological Survey for SF Snoqualmie River above Alice Creek near Garcia, WA (site 12143400). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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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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