Climatological Report (Daily)
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905
CDUS43 KLOT 302135
CLIDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT THU JUL 30 2026

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

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 30 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         84   2:59 PM  98    1999  84      0       80
  MINIMUM         57   3:20 AM  49    1997  63     -6       69
  AVERAGE         71                        74     -3       75

PRECIPITATION (IN)
  TODAY            0.00          0.84 2000   0.13  -0.13     0.50
  MONTH TO DATE    5.33                      3.50   1.83     6.96
  SINCE JUN 1     11.96                      7.15   4.81     9.61
  SINCE JAN 1     24.84                     19.41   5.43    17.67

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    1                         0      1        0
  SINCE JUN 1     25                        33     -8       18
  SINCE JUL 1      1                         0      1        0

 COOLING
  TODAY            6                         8     -2       10
  MONTH TO DATE  300                       265     35      361
  SINCE JUN 1    454                       440     14      628
  SINCE JAN 1    513                       496     17      661
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     2.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           2:00 AM
 LOWEST     41           1:00 PM
 AVERAGE    66

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


THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84        98      2006
 MINIMUM TEMPERATURE (F)   63        50      1997


SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE   5:45 AM CDT   SUNSET   8:13 PM CDT
JULY 31 2026..........SUNRISE   5:46 AM CDT   SUNSET   8:12 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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