513
NOUS43 KLOT 011048
PNSLOT
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-012300-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
548 AM CDT THU OCT 1 2026 /648 AM EDT THU OCT 1 2026/
...A LOOK BACK AT THE CLIMATE FOR THE MONTH OF SEPTEMBER 2026 FOR
CHICAGO AND ROCKFORD...
AT CHICAGO, THE AVERAGE HIGH TEMPERATURE WAS 77.3 DEGREES, WHICH
IS 1.8 DEGREES ABOVE NORMAL. THE AVERAGE LOW TEMPERATURE WAS
63.0 DEGREES, WHICH IS 5.9 DEGREES ABOVE NORMAL. THE MEAN AVERAGE
TEMPERATURE FOR THE MONTH WAS 70.1 DEGREES, WHICH IS 3.8 DEGREES
ABOVE NORMAL. 3.70 INCHES OF LIQUID PRECIPITATION WERE RECORDED,
WHICH IS 0.51 INCHES ABOVE NORMAL.
THE FOLLOWING DAILY RECORDS WERE SET FOR CHICAGO THIS PAST
SEPTEMBER:
* TIED RECORD DAILY WARMEST LOW TEMPERATURE OF 78 DEGREES ON THE
2ND.
* RECORD DAILY WARMEST LOW TEMPERATURE OF 77 DEGREES ON THE 3RD.
* RECORD DAILY WARMEST LOW TEMPERATURE OF 76 DEGREES ON THE 4TH.
THE FOLLOWING TOP TEN MONTHLY RECORDS WERE SET FOR CHICAGO THIS
PAST SEPTEMBER:
** TIED 10TH WARMEST SEPTEMBER ON RECORD WITH AN AVERAGE
TEMPERATURE OF 70.1 DEGREES.
AT ROCKFORD, THE AVERAGE HIGH TEMPERATURE WAS 77.6 DEGREES, WHICH
IS 2.3 DEGREES ABOVE NORMAL. THE AVERAGE LOW TEMPERATURE WAS
58.4 DEGREES, WHICH IS 4.9 DEGREES ABOVE NORMAL. THE AVERAGE
TEMPERATURE FOR THE MONTH WAS 68.0 DEGREES, WHICH IS 3.6 DEGREES
ABOVE NORMAL. 7.40 INCHES OF LIQUID PRECIPITATION WERE RECORDED,
WHICH IS 3.78 INCHES ABOVE NORMAL.
THE FOLLOWING DAILY RECORDS WERE SET FOR ROCKFORD THIS PAST
SEPTEMBER:
* TIED RECORD DAILY WARMEST LOW TEMPERATURE OF 73 DEGREES ON THE
3RD.
* RECORD DAILY WARMEST LOW TEMPERATURE OF 73 DEGREES ON THE 4TH.
* RECORD DAILY LIQUID PRECIPITATION OF 2.63 INCHES ON THE 19TH.
NO TOP TEN MONTHLY RECORDS WERE SET FOR ROCKFORD DURING THIS PAST
SEPTEMBER.
..............................................................
CHICAGO'S CLIMATIC PERIOD OF RECORD DATES BACK TO:
1871 FOR PRECIPITATION
1872 FOR TEMPERATURES
1884 FOR SNOWFALL
ROCKFORD'S CLIMATIC PERIOD OF RECORD DATES BACK TO:
1905 FOR TEMPERATURES, PRECIPITATION, AND SNOWFALL
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page