Reservoir Levels Weather Hydrology

Lake Monona is located in Madison, Wisconsin and is the second-largest of the Yahara Chain of five lakes. The lake has a rich history, dating back to the early 1800s when it was used as a transportation route for fur traders. Today, the lake is primarily used for recreational purposes, including boating, fishing, and swimming. As far as hydrology is concerned, Lake Monona receives water from several sources, including Yahara River, Wingra Creek, and Starkweather Creek. The snowpack in the winter and spring also contributes to the water levels in the lake. The lake's agricultural uses include farming and dairy production in the surrounding area, which can lead to nutrient runoff that can impact water quality. Despite these challenges, Lake Monona remains a popular destination for both visitors and locals alike.

July 19, 2024







Gage Height, Ft 24hr Change -0.84%
Percent of Normal 123%
Minimum 2.66 ft
Maximum 8.53 ft
Average 6 ft
Dam_Height 8
Hydraulic_Height 3
Drainage_Area 6
Years_Modified 2009 - Other
Year_Completed 1930
Nid_Storage 2600
Structural_Height 8
Primary_Dam_Type Gravity
River_Or_Stream MURPHY'S CREEK
Surface_Area 345
Hazard_Potential Low
Dam_Length 25
Nid_Height 8

Regional Streamflow


Cubic Feet Per Second


Cubic Feet Per Second


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Cubic Feet Per Second

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