March 2018 Climate Summary

Overview and Graphics
Monthly Summary
Events

Overview and Graphics


March 2018 temperatures were around 1 to 2 degrees below normal across northern Illinois and northwest Indiana. Precipitation for the month was below normal north to above normal south.	March 2018 snowfall was below normal for most areas except for a narrow swath across central Illinois, where heavy snow fell on March 24th.

The March 2018 maximum temperature of 58F in Chicago was lower than the maximum temperature observed during each month of meteorological winter 2017-2018 (December - 65; January - 59; February - 66). This marks the fourth occurrence of this feat (1880, 1890, 1900).

Monthly Maximum Temperature (F)
Year	Dec	Jan	Feb	Mar
1879-1880	62	61	63	60
1889-1890	64	62	59	56
1899-1900	56	56	62	55
2017-2018	65	59	66	58

Chicago and Rockford Latest Monthly Summary

Public Information Statement
National Weather Service Chicago IL
853 AM CDT Sun Apr 1 2018 /953 AM EDT Sun Apr 1 2018/

...A Look Back at the Climate for the Month of March 2018 for 
Chicago and Rockford...

At Chicago, the average high temperature was 44.7 degrees, which 
is 1.9 degrees below normal. The average low temperature was 29.1 
degrees, which is 0.1 degrees below normal. The average 
temperature for the month was 36.9 degrees which is 1.0 degrees 
below normal. During the month of March, 1.74 inches of 
precipitation was recorded, which is 0.76 inches below normal. 2.6
inches of snow was recorded, which is 3.0 inches below normal.

There were no records set during the month of March 2018 for 
Chicago.

At Rockford, the average high temperature was 45.8 degrees, which
is 1.1 degrees below normal. The average low temperature was 26.1
degrees, which is 1.4 degrees below normal. The average 
temperature for the month was 36.0 degrees, which is 1.2 degrees 
below normal. During the month of March, 1.22 inches of 
precipitation was recorded, which is 1.10 inches below normal. 2.4
inches of snow was recorded, which is 2.4 inches below normal.

There were no records set during the month of March 2018 for 
Rockford.

Latest Monthly Climate Report: Chicago | Rockford

Events

March 24, 2018: Heavy late season snow across northwest and central Illinois
NWS Chicago Past Events Page

Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

March 2018 Climate Summary