Maximum discharge along the river was observed at the Pemigewasset River At Plymouth with a streamflow rate of 934 cfs. However, the deepest point on the river is located at the Pemigewasset River At Woodstock reporting a gauge stage of 3.4 ft. This river is monitored from 2 different streamgauging stations along the Pemigewasset River, the highest being perched at an elevation of 620 ft, the Pemigewasset River At Woodstock.