Climatological Report (Daily)
Issued by NWS

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508
CDUS43 KLOT 160631
CLIDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT WED JUL 16 2025

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

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 15 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         90   4:44 PM  94    2006  84      6       89
  MINIMUM         65   4:49 AM  53    2014  64      1       66
  AVERAGE         78                        74      4       78

PRECIPITATION (IN)
  YESTERDAY        0.00          1.40 2021   0.12  -0.12     0.69
  MONTH TO DATE    3.85                      1.69   2.16     4.11
  SINCE JUN 1      6.50                      5.34   1.16     9.14
  SINCE JAN 1     14.56                     17.60  -3.04    21.78

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        3
  SINCE JUN 1     18                        33    -15       16
  SINCE JUL 1      0                         0      0        3

 COOLING
  YESTERDAY       13                         9      4       13
  MONTH TO DATE  181                       131     50      142
  SINCE JUN 1    448                       306    142      384
  SINCE JAN 1    481                       362    119      438
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     E (110)
  AVERAGE WIND SPEED     4.5


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           3:00 AM
 LOWEST     50           2:00 PM
 AVERAGE    70

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


THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84        96      2012
 MINIMUM TEMPERATURE (F)   64        51      2014


SUNRISE AND SUNSET
JULY 16 2025..........SUNRISE   5:32 AM CDT   SUNSET   8:26 PM CDT
JULY 17 2025..........SUNRISE   5:33 AM CDT   SUNSET   8:25 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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