Total streamflow across the Klickitat River was last observed at 1,841 cfs, and is expected to yield approximately 3,652 acre-ft of water today; about 85% of normal. Average streamflow for this time of year is 2,174 cfs, with recent peaks last observed on 2012-03-31 when daily discharge volume was observed at 20,772 cfs.

Maximum discharge along the river is currently at the Klickitat River Near Pitt reporting a streamflow rate of 872 cfs. However, the streamgauge with the highest stage along the river is the Klickitat River Bl Summit Creek Near Glenwood with a gauge stage of 4.34 ft. This river is monitored from 3 different streamgauging stations along the Klickitat River, the highest being situated at an altitude of 2,745 ft, the Klickitat River Above West Fork Near Glenwood.

The Klickitat River in Washington state is a 75-mile-long tributary of the Columbia River. Historically, the river was important to Native American tribes such as the Yakama and Klickitat, who relied on the river for fishing and transportation. The river's hydrology is characterized by high flows in the spring and early summer, followed by lower flows in the fall and winter. The river is home to several dams and reservoirs, including the Laurance Lake Reservoir and the Box Canyon Dam. These structures provide hydroelectric power and irrigation water for local agriculture. The river is also a popular destination for recreational activities such as fishing, kayaking, and rafting.