Climatological Report (Daily)
Issued by NWS

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504
CDUS43 KLOT 300631
CLIDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT SUN AUG 30 2026

...................................

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 29 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         MM        MM  92    2010  80     MM       74
  MINIMUM         MM        MM  51    1999  60     MM       51
                                      2001
                                      2025
  AVERAGE         MM                        70     MM       63

PRECIPITATION (IN)
  YESTERDAY       MM             1.25 2015   0.12  MM         T
  MONTH TO DATE    4.22                      3.58   0.64     2.86
  SINCE JUN 1     16.26                     10.85   5.41    12.47
  SINCE JAN 1     29.14                     23.11   6.03    20.53

DEGREE DAYS
 HEATING
  YESTERDAY       MM                         0     MM        2
  MONTH TO DATE    0                         0      0       10
  SINCE JUN 1     25                        37    -12       28
  SINCE JUL 1      1                         4     -3       10

 COOLING
  YESTERDAY       MM                         6     MM        0
  MONTH TO DATE  161                       209    -48      241
  SINCE JUN 1    622                       656    -34      873
  SINCE JAN 1    681                       712    -31      906
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    MM   HIGHEST WIND DIRECTION    MM
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED    MM


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    MM
 LOWEST     MM
 AVERAGE    MM

..........................................................


THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   80        93      2013
 MINIMUM TEMPERATURE (F)   60        48      2009


SUNRISE AND SUNSET
AUGUST 30 2026........SUNRISE   6:17 AM CDT   SUNSET   7:30 PM CDT
AUGUST 31 2026........SUNRISE   6:18 AM CDT   SUNSET   7:28 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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