Climatological Report (Daily)
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126
CDUS43 KLOT 200646
CLIDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
146 AM CDT SUN SEP 20 2026

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

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 2026...

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


WEATHER ITEM   OBSERVED RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   VALUE       VALUE  FROM      YEAR
                                           NORMAL
............................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         70     90    2021  75     -5       87
  MINIMUM         63     37    2020  52     11       62
  AVERAGE         67                 64      3       75

PRECIPITATION (IN)
  YESTERDAY        0.59   2.60 2001   0.10   0.49     0.03
  MONTH TO DATE    2.32               1.89   0.43     0.37
  SINCE SEP 1      2.32               1.89   0.43     0.37
  SINCE JAN 1     31.46              25.26   6.20    20.90

DEGREE DAYS
 HEATING
  YESTERDAY        0                  4     -4        0
  MONTH TO DATE   10                 39    -29       47
  SINCE SEP 1     10                 39    -29       47
  SINCE JUL 1     11                 50    -39       58

 COOLING
  YESTERDAY        2                  2      0       10
  MONTH TO DATE  149                 70     79       66
  SINCE SEP 1    149                 70     79       66
  SINCE JAN 1    830                794     36      974
............................................................


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           7:00 PM
 LOWEST     73          12:00 AM
 AVERAGE    87

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


THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        93      2018
                                             2022
 MINIMUM TEMPERATURE (F)   52        40      2003
                                             2020


SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE   6:38 AM CDT   SUNSET   6:54 PM CDT
SEPTEMBER 21 2026.....SUNRISE   6:39 AM CDT   SUNSET   6:52 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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