Total streamflow across the Tiffin River was last observed at 432 cfs, and is expected to yield approximately 857 acre-ft of water today; about 54% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 807 cfs, with recent peaks last observed on 2020-05-20 when daily discharge volume was observed at 11,280 cfs.

Maximum discharge along the river is currently at the Tiffin River At Stryker Oh reporting a streamflow rate of 432 cfs. However, the streamgauge with the highest stage along the river is the Tiffin River Near Evansport Oh with a gauge stage of 12.98 ft. This river is monitored from 2 different streamgauging stations along the Tiffin River, the highest being situated at an altitude of 692 ft, the Tiffin River At Stryker Oh.

The Tiffin River is a tributary of the Maumee River that runs through northwestern Ohio and northeastern Indiana. The river is approximately 84 miles long and has a watershed of 1,140 square miles. The Tiffin River originates in Williams County, Ohio and flows through several small towns before joining the Maumee River. The river has been used for agricultural irrigation and recreation, including fishing and canoeing. The Tiffin River is also home to several reservoirs and dams, including the Independence Dam and Reservoir, which was built in the 1930s to provide flood control and hydroelectric power. The reservoir is a popular spot for fishing and boating. The river has a long history, dating back to Native American settlements and European colonization in the 18th century.