Total streamflow across the Clarion River was last observed at 2,354 cfs, and is expected to yield approximately 4,669 acre-ft of water today; about 75% of normal. Average streamflow for this time of year is 3,154 cfs, with recent peaks last observed on 2014-05-22 when daily discharge volume was observed at 76,850 cfs.

Maximum discharge along the river is currently at the Clarion River At Cooksburg reporting a streamflow rate of 1,480 cfs. This is also the highest stage along the Clarion River, with a gauge stage of 4.09 ft at this location. This river is monitored from 4 different streamgauging stations along the Clarion River, the highest being situated at an altitude of 1,426 ft, the Clarion River At Johnsonburg.

The Clarion River is a 110-mile-long river located in western Pennsylvania, United States. The river has a rich history, as it was used for transportation by Native Americans and later settlers. The first oil well in the United States was drilled along the river's banks in 1859. The river is fed by numerous tributaries and has a drainage area of 1,110 square miles. Several reservoirs and dams are located on the river, including Piney Dam, East Branch Dam, and Clarion River Lake. These structures provide flood control, water supply, and recreation opportunities such as boating, fishing, and camping. The river also serves as a source of drinking water for several municipalities and supports agricultural activities such as crop irrigation and livestock watering.