Average Precipitation for Illinois in March





The tables below give monthly averages for rainfall plus snowfall during March at cities in Illinois.

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. This includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The 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: Chicago Area, Northern Illinois, Central Illinois and Southern Illinois.

Chicago Area

Average monthly precipitation in March
Days Place Inches Milli­metres
10 Aurora 2.4 60
10 Chicago Botanical Garden 2.4 60
11 Chicago Midway Airport 2.7 69
11 Chicago O'Hare Airport 2.5 64
12 Chicago University 2.8 71
9 Elgin 2.3 58
11 Joliet 2.3 57

Northern Illinois

March averages for total rainfall plus snowfall
Days Place Inches Milli­metres
9 Antioch 2.1 53
11 DeKalb 2.3 58
8 Dixon 2.5 63
9 Freeport 2.1 53
10 Moline 2.9 73
11 Rockford 2.3 59
Waukegan 2.3 59

Central Illinois

Average amount of rain and snow in March
Days Place Inches Milli­metres
10 Alton 3.2 81
10 Cahokia 3.3 85
11 Danville 3.0 77
10 Peoria 2.8 71
10 Quincy 2.5 62
11 Springfield 2.6 67
11 Urbana 2.9 73

Southern Illinois

Precipitation totals for March
Days Place Inches Milli­metres
10 Cairo 4.1 103
11 Marion 4.4 111
11 Mt Vernon 3.9 98
Reference

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

Illinois Precipitation
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