Climatological Report (Daily)
Issued by NWS

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613
CDUS43 KLOT 270640
CLIDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT THU AUG 27 2026

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

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 26 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  94    2024  81     MM       75
  MINIMUM         MM        MM  48    2025  60     MM       48
  AVERAGE         MM                        71     MM       62

PRECIPITATION (IN)
  YESTERDAY       MM             1.50 2009   0.12  MM        0.00
  MONTH TO DATE    4.22                      3.21   1.01     2.68
  SINCE JUN 1     16.26                     10.48   5.78    12.29
  SINCE JAN 1     29.14                     22.74   6.40    20.35

DEGREE DAYS
 HEATING
  YESTERDAY       MM                         0     MM        3
  MONTH TO DATE    0                         0      0        7
  SINCE JUN 1     25                        37    -12       25
  SINCE JUL 1      1                         4     -3        7

 COOLING
  YESTERDAY       MM                         6     MM        0
  MONTH TO DATE  161                       191    -30      238
  SINCE JUN 1    622                       638    -16      870
  SINCE JAN 1    681                       694    -13      903
...................................................................


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)   81        97      2024
 MINIMUM TEMPERATURE (F)   60        47      2015


SUNRISE AND SUNSET
AUGUST 27 2026........SUNRISE   6:14 AM CDT   SUNSET   7:35 PM CDT
AUGUST 28 2026........SUNRISE   6:15 AM CDT   SUNSET   7:33 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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