Average Temperatures for Illinois in March

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Average temperatures for March at cities throughout Illinois are listed below.

The tables give the normal maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center.

You can jump to a separate table for each region of the state: Chicago Area, Northern Illinois, Central Illinois and Southern Illinois.

Chicago Area

Average March temperatures
High °F Low °F Place High °C Low °C
47 30 Aurora   8 -1
45 28 Chicago Botanical Garden   7 -2
47 31 Chicago Midway Airport   8 -1
47 29 Chicago O'Hare Airport   8 -2
48 33 Chicago University   9  0
46 27 Elgin   8 -3
47 29 Joliet   9 -2

Northern Illinois

Average temperatures in March
High °F Low °F Place High °C Low °C
44 27 Antioch   7 -3
45 27 DeKalb   7 -3
46 27 Dixon   8 -3
46 26 Freeport   8 -3
49 29 Moline   9 -1
47 28 Rockford   8 -3
44 27 Waukegan   7 -3

Central Illinois

Normal temperatures for March
High °F Low °F Place High °C Low °C
55 36 Alton 13  2
56 35 Cahokia 13  2
52 32 Danville 11  0
50 31 Peoria 10 -1
51 32 Quincy 11  0
52 32 Springfield 11  0
50 30 Urbana 10 -1

Southern Illinois

Average March temperatures
High °F Low °F Place High °C Low °C
59 37 Cairo 15  3
54 33 Marion 12  1
54 33 Mt Vernon 12  1
Reference

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

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