Climatological Report (Daily)
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524
CDUS43 KLOT 100643
CLIDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
143 AM CDT MON AUG 10 2026

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

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 9 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         84  11:29 AM  94    2005  83      1       92
  MINIMUM         61   3:31 AM  49    1999  63     -2       73
  AVERAGE         73                        73      0       83

PRECIPITATION (IN)
  YESTERDAY        0.66          0.88 2008   0.12   0.54     0.00
  MONTH TO DATE    2.67                      1.16   1.51     0.00
  SINCE JUN 1     14.71                      8.43   6.28     9.61
  SINCE JAN 1     27.59                     20.69   6.90    17.67

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1     25                        37    -12       18
  SINCE JUL 1      1                         4     -3        0

 COOLING
  YESTERDAY        8                         8      0       18
  MONTH TO DATE   68                        72     -4       78
  SINCE JUN 1    529                       519     10      710
  SINCE JAN 1    588                       575     13      743
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     6.5


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           1:00 AM
 LOWEST     74          11:00 AM
 AVERAGE    87

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


THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        92      2021
 MINIMUM TEMPERATURE (F)   63        54      2008
                                             2024


SUNRISE AND SUNSET
AUGUST 10 2026........SUNRISE   5:56 AM CDT   SUNSET   8:00 PM CDT
AUGUST 11 2026........SUNRISE   5:57 AM CDT   SUNSET   7:59 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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