Chehalis River

Streamflow Hydrology Weather

Chehalis River Levels

September 21 2023


Discharge Volume Today
+1.8 cfs (+0.59%) since yesterday
34.83% of normal Very Low

Total streamflow across the Chehalis River was last observed at 309 cfs, and is expected to yield approximately 613 acre-ft of water today; about 35% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 887 cfs, with recent peaks last observed on 2022-01-08 when daily discharge volume was observed at 112,610 cfs.

Maximum discharge along the river is currently at the Chehalis River At Porter reporting a streamflow rate of 208 cfs. However, the streamgauge with the highest stage along the river is the Chehalis River Near Doty with a gauge stage of 305.95 ft. This river is monitored from 4 different streamgauging stations along the Chehalis River, the highest being situated at an altitude of 324 ft, the Chehalis River Near Doty.

Last Updated 2023-09-21
Streamflow 309.0 cfs
Percent of Normal 34.83%
Maximum 112,610.0 cfs

About the chehalis river

The Chehalis River is a 126-mile long river that flows through western Washington State. It has two main tributaries, the East Fork Chehalis and the West Fork Chehalis. The river was an important resource for Native American tribes such as the Chehalis and Chinook for centuries before European settlers arrived. Today, the Chehalis River is used for a variety of recreational activities such as fishing, kayaking, and camping. It is also used for agricultural purposes, with farms and pastureland located along its banks. The river is home to several reservoirs and dams, including the Mossyrock and Mayfield Dams, which provide hydroelectric power and flood control for surrounding communities. Despite these measures, the Chehalis River is prone to flooding during heavy rain events.

Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Chehalis River Near Doty
USGS 12020000
16 cfs 305.95 ft 5.3
Chehalis River Near Adna
USGS 12021800
32 cfs 192.13 ft 3.26
Chehalis River Near Grand Mound
USGS 12027500
53 cfs 128.51 ft -5.32
Chehalis River At Porter
USGS 12031000
208 cfs 30 ft 1.46

Peak Annual Discharge

Chehalis River Maximum Total Discharge

Seasonal Comparison

Chehalis River Year Over Year Discharge

Log Your Visit

When was your last visit to ?

Add a Photo

How was it? How were conditions?

Rate the


Leave A Review


Upload an Image

Favorite Limit Reached