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CXUS53 KLOT 010925
CLMDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
425 AM CDT TUE SEP 01 2026

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

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2026...

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

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             97   08/02/2006
 LOW              43   08/31/2009
HIGHEST           MM                                  95  08/16
LOWEST            MM                                  48  08/26
AVG. MAXIMUM      MM               82.0      MM     82.5
AVG. MINIMUM      MM               61.8      MM     61.8
MEAN              MM               71.9      MM     72.2
DAYS MAX >= 90    MM                2.9      MM        4
DAYS MAX <= 32    MM                0.0      MM        0
DAYS MIN <= 32    MM                0.0      MM        0
DAYS MIN <= 0     MM                0.0      MM        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.19   2002
 MINIMUM        0.96   2020
TOTALS            MM               3.84      MM     2.86
DAILY AVG.        MM               0.12      MM     0.09
DAYS >= .01       MM               10.9      MM        7
DAYS >= .10       MM                5.6      MM        6
DAYS >= .50       MM                2.6      MM        2
DAYS >= 1.00      MM                0.9      MM        1
GREATEST
 24 HR. TOTAL     MM                                1.50

DEGREE DAYS
HEATING TOTAL     MM                  7      MM       11
 SINCE 7/1         1                  6      -5       MM
COOLING TOTAL     MM                221      MM      243
 SINCE 1/1       681                724     -43       MM
................................................................

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

AVERAGE RH (PERCENT)     MM

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             MM     MIXED PRECIP              MM
HEAVY RAIN               MM     RAIN                      MM
LIGHT RAIN               MM     FREEZING RAIN             MM
LT FREEZING RAIN         MM     HAIL                      MM
HEAVY SNOW               MM     SNOW                      MM
LIGHT SNOW               MM     SLEET                     MM
FOG                      MM     FOG W/VIS <= 1/4 MILE     MM
HAZE                     MM

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

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