Average Rainfall for Michigan in August

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The tables below give monthly averages for rainfall during August at cities, towns and parks in Michigan.

Each place has a total for the amount of precipitation it usually receives this month. Most sites also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The rainfall totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

You can jump to a separate table for each region of the state: The Thumb & Southeast Michigan, West & Mid-Michigan, Northern Michigan and Upper Peninsula.

The Thumb & Southeast Michigan

Average monthly precipitation in August
Days Place Inches Millimetres
11 Ann Arbor 3.7 94
  9 Dearborn 2.7 67
10 Detroit 3.0 76
10 Flint 3.2 81
10 Harbor Beach 3.3 83
  9 Monroe 3.7 93
11 Port Huron 3.3 83
  9 Saginaw 3.2 82

West & Mid-Michigan

August averages for total rainfall
Days Place Inches Millimetres
10 Battle Creek 3.5 88
  9 Benton Harbor 3.8 95
10 Grand Rapids 3.6 91
  8 Holland 3.8 97
10 Lansing 3.2 82
  8 Mt Pleasant 3.3 85
  9 Muskegon 3.4 86

Northern Michigan

Average amount of rain in August
Days Place Inches Millimetres
10 Alpena 3.2 82
12 Cadillac 3.7 94
10 Cheboygan 3.5 89
10 East Tawas 3.4 87
  9 Frankfort 3.6 90
  9 Gaylord 3.7 93
10 Harrisville 3.4 87
11 Houghton Lake 3.5 89
  – Ludington 3.6 90
11 Petoskey 3.4 87
10 Traverse City 3.4 86

Upper Peninsula

Precipitation totals for August
Days Place Inches Millimetres
10 Champion Van Riper Park 3.4 87
10 De Tour Village 3.1 79
11 Escanaba 3.4 85
  9 Houghton 2.4 61
11 Iron Mountain 3.3 83
12 Ironwood 3.4 86
  – Manistique 3.3 83
11 Marquette 2.6 67
10 Munising 3.5 88
11 Sault Ste Marie 3.2 81
  – Tahquamenon Falls Park 3.4 87
11 Whitefish Point 3.1 80
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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