Fourth Warmest Start to September and Warmest Week of 2015

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
743 PM CDT MON SEP 7 2015

...FOURTH WARMEST START TO SEPTEMBER AND WARMEST WEEK OF 2015...

THE FIRST WEEK OF SEPTEMBER BROUGHT HOT AND OFTEN HUMID CONDITIONS
TO MUCH OF THE MIDWEST INCLUDING NORTHERN ILLINOIS AND NORTHWEST
INDIANA. FOR BOTH CHICAGO AND ROCKFORD...SEPTEMBER 1ST-7TH WAS THE 
WARMEST WEEK OF 2015. THIS IS HIGHLY UNCOMMON FOR THE WARMEST WEEK 
TO FALL OUTSIDE OF THE MONTHS OF JUNE-AUGUST. IN FACT...THE 
WARMEST WEEK OF THE YEAR HAS NOT FELL IN SEPTEMBER SINCE 1990 FOR 
BOTH CITIES.

THIS ALSO WAS THE 4TH WARMEST FIRST WEEK OF SEPTEMBER ON RECORD
FOR BOTH CHICAGO AND ROCKFORD.

WARMEST FIRST 7 DAYS OF SEPTEMBER FOR CHICAGO:

RANK    YEAR     AVG TEMP
----------------------
1.      1960      83.6
2.      1922      82.4
3.      1912      79.7
4.      2015      79.6
5.      1971      79.4
        1925      79.4

RECORDS FOR CHICAGO DATE BACK TO 1872.


WARMEST FIRST 7 DAYS OF SEPTEMBER FOR ROCKFORD:

RANK    YEAR     AVG TEMP
----------------------
1.      1922      82.4
2.      1960      80.9
3.      1913      80.0
4.      2015      78.9
5.      1971      78.7

RECORDS FOR ROCKFORD DATE BACK TO 1905.

REPRIEVE FROM THE LATE SUMMER HEAT IS ON THE WAY AS COOLER WEATHER 
IS FORECAST FOR THE REMAINDER OF THE WEEK...WITH EVEN BELOW NORMAL 
TEMPERATURES EXPECTED FRIDAY AND SATURDAY.

$$

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