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

The Whetstone River, located in southern Vermont, is a 20-mile-long tributary of the Connecticut River. The river has a rich history, once being used to power mills and factories in the 19th century. The river's hydrology has been impacted by the construction of dams and reservoirs, such as the Harriman Dam and the Whetstone Reservoir. These were built in the early 1900s for flood control and water supply purposes. Today, the river is primarily used for recreational activities such as fishing, paddling, and hiking. It also provides water for agricultural irrigation in the surrounding areas. Various conservation efforts have been made to protect and restore the river's ecosystem, including the removal of some dams to improve fish passage.