Climatological Report (Daily)
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CDUS43 KLOT 120632
CLIDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT SAT SEP 12 2026

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

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 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         81        MM  91    2005  77      4       81
                                      2019
  MINIMUM         53        MM  43    1999  56     -3       59
  AVERAGE         67                        66      1       70

PRECIPITATION (IN)
  YESTERDAY        0.00          0.89 2006   0.09  -0.09     0.00
  MONTH TO DATE    T                         1.10  -1.10     0.03
  SINCE SEP 1      T                         1.10  -1.10     0.03
  SINCE JAN 1     29.14                     24.47   4.67    20.56

DEGREE DAYS
 HEATING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE    0                        15    -15       47
  SINCE SEP 1      0                        15    -15       47
  SINCE JUL 1      1                        26    -25       58

 COOLING
  YESTERDAY        2                         4     -2        5
  MONTH TO DATE  118                        48     70       10
  SINCE SEP 1    118                        48     70       10
  SINCE JAN 1    799                       772     27      918
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED     4.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           5:00 AM
 LOWEST     44           1:00 PM
 AVERAGE    70

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


THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        90      2005
 MINIMUM TEMPERATURE (F)   55        42      1997


SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE   6:30 AM CDT   SUNSET   7:08 PM CDT
SEPTEMBER 13 2026.....SUNRISE   6:31 AM CDT   SUNSET   7:06 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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