Average Temperatures for Iowa in March

Average temperatures for March at cities, towns and other locations around Iowa are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Eastern, Central and Western Iowa.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Eastern Iowa

Average March temperatures
High °F Low °F Place High °C Low °C
50 30 Burlington 10 -1
49 28 Cedar Rapids 9 -3
48 29 Clinton 9 -2
42 21 Cresco 6 -6
48 29 Davenport 9 -2
46 26 Decorah 8 -3
45 25 Dubuque 7 -4
48 27 Iowa City 9 -3
50 31 Keokuk 10 -1
47 27 Waterloo 8 -3

Central Iowa

Average daily temperatures in March
High °F Low °F Place High °C Low °C
48 28 Ames 9 -2
49 30 Des Moines 10 -1
44 24 Fort Dodge 7 -5
45 25 Marshalltown 7 -4
42 24 Mason City 6 -5
50 29 Ottumwa 10 -2
50 28 Rathbun Lake Dam 10 -2

Western Iowa

March temperatures: daily averages
High °F Low °F Place High °C Low °C
46 25 Carroll 8 -4
42 22 Lake Park 5 -6
42 24 Milford 6 -5
50 24 Onawa 10 -5
52 29 Shenandoah 11 -2
48 26 Sioux City 9 -3
42 23 Spirit Lake 5 -5
43 25 Storm Lake 6 -4
Reference

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

Iowa Temperatures
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