Baraboo River near Wisconsin Dells, WI

Baraboo River typically runs highest in April, at a median 417 cfs, and lowest in September, at 183 cfs. The highest flow on record for any single day is 1,780 cfs, in 2026.

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 8 years of record. Statistics published by the US Geological Survey for Baraboo River at Main Street at Reedsburg, WI (site 054041665). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.