September 2011 Climate data for Chicago and Rockford

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1238 PM CDT SAT OCT 1 2011

...A LOOK BACK AT THE CLIMATE FOR THE MONTH OF SEPTEMBER 2011 FOR
CHICAGO AND ROCKFORD...

AT CHICAGO...THE AVERAGE HIGH TEMPERATURE WAS 69.9 DEGREES WHICH IS
4.0 DEGREES BELOW NORMAL.  THE AVERAGE LOW TEMPERATURE WAS 54.4
DEGREES WHICH IS 0.7 DEGREE ABOVE NORMAL.  THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 62.2 DEGREES WHICH IS 1.6 DEGREE BELOW NORMAL.
3.45 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 0.18 INCHES ABOVE
NORMAL.

AT ROCKFORD...THE AVERAGE HIGH TEMPERATURE WAS 70.9 DEGREES WHICH
IS 3.0 DEGREES BELOW NORMAL.  THE AVERAGE LOW TEMPERATURE WAS 52.0
DEGREES WHICH IS 0.2 DEGREE ABOVE NORMAL.  THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 61.4 DEGREES WHICH IS 1.4 DEGREE BELOW NORMAL.
5.33 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 1.86 INCHES ABOVE
NORMAL.

THE HIGH MINIMUM TEMPERATURE OF 77 DEGREES ON SEPTEMBER 2ND BROKE
THE OLD RECORD FOR THAT DAY SET IN 1922.
A DAILY RECORD RAINFALL OF 3.93 INCHES ON SEPTEMBER 26 BROKE THE OLD
RECORD OF 2.09 INCHES FOR THAT DAY SET IN 1959.

$$



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