National Weather Service United States Department of Commerce
 
Overview and Graphics

 

Fall 2017 November 2017
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

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