Highlights of a Cool and Extremely Wet April

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April 2013 Highlights, Including Chicago and Rockford Statistics and Record River Flooding

 

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
1042 AM CDT WED MAY 1 2013 /1142 AM EDT WED MAY 1 2013/

...A LOOK BACK AT THE CLIMATE FOR THE COOL AND EXCEPTIONALLY WET
MONTH OF APRIL 2013 FOR CHICAGO AND ROCKFORD...

AT CHICAGO...THE AVERAGE HIGH TEMPERATURE WAS 56.3 DEGREES WHICH IS
2.7 DEGREES BELOW NORMAL. THE AVERAGE LOW TEMPERATURE WAS 37.5
DEGREES WHICH IS 1.3 DEGREES BELOW NORMAL.  THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 46.9 DEGREES WHICH IS 2.0 DEGREES BELOW NORMAL.
8.68 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 5.30 INCHES ABOVE
NORMAL. 0.1 INCH OF SNOW WAS RECORDED WHICH IS 1.1 INCHES BELOW
NORMAL.

THE 8.68 INCHES OF PRECIPITATION ESTABLISHED A NEW RECORD RAINFALL
AMOUNT FOR THE MONTH IN CHICAGO. A RECORD DAILY RAINFALL AMOUNT OF
2.01 INCHES WAS SET ON APRIL 17TH AND THE 3.54 INCHES OF RAIN ON
APRIL 18TH WAS THE SECOND RAINIEST APRIL DAY ON RECORD IN CHICAGO.

AT ROCKFORD...THE AVERAGE HIGH TEMPERATURE WAS 56.9 DEGREES WHICH
IS 3.8 DEGREES BELOW NORMAL.  THE AVERAGE LOW TEMPERATURE WAS 36.7
DEGREES WHICH IS 1.4 DEGREES BELOW NORMAL.  THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 46.8 DEGREES WHICH IS 2.6 DEGREES BELOW NORMAL.
7.94 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 4.59 INCHES ABOVE
NORMAL. A TRACE OF SNOW WAS RECORDED WHICH IS 0.9 INCH BELOW NORMAL.

NEW RECORD DAILY RAINFALL AMOUNTS WERE SET ON BOTH APRIL 17TH...WITH
3.06 INCHES AND ON APRIL 18TH...WITH 1.62 INCHES. THE 7.94 INCHES OF
PRECIPITATION FOR THE MONTH MADE THIS APRIL THE THIRD RAINIEST ON
RECORD IN ROCKFORD.

$$

RC

 Top 5 Wettest Aprils for Chicago and Rockford

Chicago
Rank Year Rain Amount (Inches)
1
2013
8.68
2
1947
8.33
3
1975
7.84
4
1909
7.73
5
1983
7.69

 

Rockford
Rank Year Rain Amount (Inches)
1
1973
9.92
2
1964
8.17
3
2013
7.94
4
1999
7.77
5
1927
7.12

Detailed Climate Summaries for April 2013 for: Chicago  and Rockford

 

Just How Wet Was it Across Northern Illinois and Northwest Indiana?

Observed Precipitation in April 2013

Observed Precipitation in April 2013

Percent of Normal Precipitation in April 2013

Percent of Normal Precipitation in April 2013



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