Public Information Statement
Issued by NWS Chicago, IL

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NOUS43 KLOT 181433 CCA
PNSLOT
ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
181500-

PUBLIC INFORMATION STATEMENT...CORRECTION TO NORMALS
NATIONAL WEATHER SERVICE CHICAGO IL
935 AM CDT THU SEP 18 2014 /1035 AM EDT THU SEP 18 2014/

...LACK OF HEAT IN 2014...

WITH THE CALENDAR NOW IN THE LATTER HALF OF SEPTEMBER...THE 90
DEGREE MARK BECOMES EXCEEDINGLY RARE WITH EACH PASSING DAY ACROSS
NORTHERN ILLINOIS AND NORTHWEST INDIANA. THE LATEST 90 DEGREE
READING OBSERVED ON RECORD IN CHICAGO IS OCTOBER 6 1963 AND IN
ROCKFORD IS OCTOBER 9 2010. WHILE THE FORECAST DOES CALL FOR ABOVE
NORMAL TEMPERATURES ON SATURDAY...90S LOOK TO BE OUT OF
REACH...MEANING THESE LIKELY COULD BE DONE FOR THE YEAR.

HERE IS A LOOK AT FACTS REGARDING 90 DEGREE PLUS DAYS SO FAR IN
2014:

CHICAGO...

- THERE HAVE BEEN THREE DAYS AT OR ABOVE 90 DEGREES. THIS IS ONLY
  THE TENTH TIME SINCE 1872 /143 YEARS/ OF THREE OR LESS 90 DEGREE
  DAYS IN A YEAR. THE LEAST AMOUNT WAS NONE IN 1875.

- THIS IS THE FEWEST NUMBER OF 90 DEGREE DAYS SINCE 2004 WHICH
  ALSO SAW THREE DAYS.

- THIS WAS THE FIRST AUGUST WITH NO 90S SINCE 1986.

- JULY 22ND WAS THE LAST 90 DEGREE DAY. IF INDEED THAT WAS THE
  FINAL 90 DEGREE READING...THIS WAS THE EARLIEST END TO 90S SINCE
  JULY 18 1981.

- THE 30-YEAR NORMAL NUMBER OF 90 DEGREE DAYS IS 14 DAYS.

AS FOR THE AVERAGE TEMPERATURE SO FAR THIS CALENDAR YEAR...THROUGH
SEPTEMBER 16TH IT HAS BEEN 49.8 DEGREES. COMPARED TO OTHER YEARS
THROUGH THE MID-POINT OF SEPTEMBER...THIS RANKS AS THE 17TH
COOLEST YEAR-TO-DATE SINCE 1872. THIS ALSO IS THE COOLEST
YEAR-TO-DATE SINCE 1982.


ROCKFORD...

- THERE HAVE BEEN TWO DAYS AT OR ABOVE 90 DEGREES. THIS IS ONLY
  THE FIFTH TIME SINCE 1905 /110 YEARS/ OF TWO OR LESS 90 DEGREE
  DAYS IN A YEAR. THE LEAST AMOUNT WAS ONE IN BOTH 1915 AND 2004.

- THIS IS THE FEWEST NUMBER OF 90 DEGREE DAYS SINCE 2004 WHICH
  HAD ONE.

- THERE WERE NO 90S IN AUGUST. INTERESTINGLY...THIS WAS THE FOURTH
  TIME IN 11 YEARS WHERE THIS HAS OCCURRED IN ROCKFORD ALONG WITH
  2004...2008...AND 2009.

- JULY 22ND WAS THE LAST 90 DEGREE DAY. IF INDEED THAT WAS THE
  FINAL 90 DEGREE READING...THIS WAS THE EARLIEST END TO 90S SINCE
  JUNE 25 2009.

- THE 30-YEAR NORMAL NUMBER OF 90 DEGREE DAYS IS 15 DAYS.

AS FOR THE AVERAGE TEMPERATURE SO FAR THIS CALENDAR YEAR...THROUGH
SEPTEMBER 16TH IT HAS BEEN 48.2 DEGREES. COMPARED TO OTHER YEARS
THROUGH THE MID-POINT OF SEPTEMBER...THIS RANKS AS THE 3RD
COOLEST YEAR-TO-DATE SINCE 1906. THE TWO COOLER YEAR-TO-DATE
READINGS WERE IN 1979 AND 1912.

$$

MTF/ACS









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