Average Annual Precipitation for Michigan

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The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Michigan.

Each place has a total for the amount of precipitation it usually receives in a year. Most locations 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 annual precipitation 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 yearly precipitation
Days Place Inches Millimetres
160 Ann Arbor 37.6 954
122 Dearborn 33.9 860
135 Detroit 33.5 850
136 Flint 31.4 797
143 Harbor Beach 34.1 867
115 Monroe 34.4 875
139 Port Huron 33.8 859
116 Saginaw 33.2 844

West & Mid-Michigan

Annual averages for rainfall plus snowfall
Days Place Inches Millimetres
132 Battle Creek 33.2 842
124 Benton Harbor 36.3 921
145 Grand Rapids 38.3 972
117 Holland 36.8 934
137 Lansing 31.8 807
100 Mt Pleasant 32.3 821
141 Muskegon 33.5 851

Northern Michigan

Average amount of rain and snow a year
Days Place Inches Millimetres
146 Alpena 28.1 714
158 Cadillac 34.0 864
142 Cheboygan 30.8 783
124 East Tawas 31.3 796
134 Frankfort 35.0 888
137 Gaylord 36.2 920
128 Harrisville 30.6 778
138 Houghton Lake 30.8 781
  – Ludington 36.2 919
158 Petoskey 32.0 812
147 Traverse City 33.1 839

Upper Peninsula

Average annual precipitation
Days Place Inches Millimetres
138 Champion Van Riper Park 32.8 832
122 De Tour Village 30.5 776
118 Escanaba 28.7 728
152 Houghton 27.8 706
125 Iron Mountain 29.7 755
165 Ironwood 34.9 887
  – Manistique 30.2 766
150 Marquette 29.1 740
159 Munising 38.5 977
163 Sault Ste Marie 33.0 837
  – Tahquamenon Falls Park 36.2 919
175 Whitefish Point 32.3 819
Reference

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

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