Average Rainfall for Wisconsin in August





The tables below give monthly averages for rainfall during August at cities, communities and other locations around Wisconsin.

Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The rainfall totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

You can jump to a separate table for each region of the state: Eastern Wisconsin, Southwest Wisconsin, Northern Wisconsin and the Lake Superior Shore.

Eastern Wisconsin

Average monthly precipitation in August
Days Place Inches Milli­metres
11 Appleton 3.6 91
10 Crivitz, High Falls Flowage 3.2 82
9 Fond du Lac 3.5 88
10 Green Bay 3.4 86
10 Kenosha 3.7 93
10 Lake Geneva 3.3 84
9 Manitowoc 3.4 87
10 Marinette 3.3 83
10 Milwaukee 3.7 93
10 Oshkosh 3.4 86
9 Racine 3.8 95
10 Sheboygan 4.0 102
10 Sturgeon Bay 3.3 84
9 Washington Island 3.0 77
10 Watertown 4.1 104
11 Whitewater 4.3 109

Southwest Wisconsin

August averages for total rainfall
Days Place Inches Milli­metres
10 Baraboo 4.5 115
10 Beaver Dam 4.1 103
9 Beloit 4.1 105
9 La Crosse 3.9 99
9 Madison 4.2 106
10 Platteville 4.2 107
8 Prairie du Chien 4.2 105
9 Viroqua 4.6 116
10 Wisconsin Dells 4.2 107
9 Wisconsin Rapids 4.0 101

Northern Wisconsin

Average amount of rain in August
Days Place Inches Milli­metres
10 Drummond 3.5 89
10 Eau Claire 4.2 106
10 Rest Lake, Manitowish Waters 3.3 84
11 Rhinelander 3.5 89
11 Rice Lake 4.2 107
9 St Croix Falls 3.7 94
10 Stevens Point 3.8 96
11 Wausau 4.1 103
9 Willow Reservoir 3.6 91

Lake Superior Shore

Precipitation totals for August
Days Place Inches Milli­metres
14 Ashland 3.4 87
11 Bayfield 3.6 92
10 Hurley 3.7 94
9 Madeline Island 3.2 81
10 Superior 3.9 100
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Wisconsin Precipitation
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