Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Snohomish River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Snohomish River, the highest being situated at an altitude of ft, the .
The Snohomish River is a river in Snohomish County the U.S. state of Washington, formed by the confluence of the Skykomish and Snoqualmie rivers near Monroe. It flows northwest entering Port Gardner Bay, part of Puget Sound, between Everett and Marysville. The Pilchuck River is its main tributary and joins the river at Snohomish. The river system drains the west side of the Cascade Mountains from Snoqualmie Pass to north of Stevens Pass.
Measured at Monroe, the Snohomish River has an average annual flow of 9,500 cubic feet per second (270 m3/s). In comparison, the Columbia River, Washington's largest river, has an average flow of about 265,000 cubic feet per second (7,500 m3/s).