Skip to content
Boating Hubs

Pecatonica River in Wisconsin

River62.1 mi

Around here

Around Pecatonica River

10 mi

Public land: USGS PAD-US

About this river

Pecatonica River is a 62.1 mile river. Streamflow is measured at the USGS gauge Pecatonica River at Martintown, WI (site 05434500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1940 to 2026

Pecatonica River typically runs highest in March, at a median 888 cfs, and lowest in January, at 477 cfs. The highest flow on record for any single day is 16,100 cfs, in 2019.

Show the numbers
Typical flow by month at Pecatonica River at Martintown, WI, in cfs
MonthTypical (cfs)Usual range (cfs)
January477338 to 685
February500360 to 800
March888599 to 1,520
April826574 to 1,295
May734505 to 1,080
June712460 to 1,180
July614384 to 922
August542346 to 791
September533342 to 721
October522355 to 700
November538380 to 800
December503353 to 703

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 86 years of record. Statistics published by the US Geological Survey for Pecatonica River at Martintown, WI (site 05434500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

8 mapped launches sit in the mapped area of Pecatonica River. Ramp data comes from the USGS national boat-ramp inventory.

Free widget

Embed this gauge on your site

Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Pecatonica River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.

Embed code

See every free widget you can put on your site, including live conditions and a 7 day forecast.