834
CDUS43 KLOT 232138
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CDT TUE SEP 23 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 82 2:15 PM 94 2017 73 9 67
MINIMUM 64 4:09 AM 36 2012 51 13 53
AVERAGE 73 62 11 60
PRECIPITATION (IN)
TODAY 0.02 1.26 2001 0.10 -0.08 0.00
MONTH TO DATE 0.64 2.31 -1.67 0.91
SINCE SEP 1 0.64 2.31 -1.67 0.91
SINCE JAN 1 21.17 25.68 -4.51 25.23
DEGREE DAYS
HEATING
TODAY 0 5 -5 5
MONTH TO DATE 47 57 -10 27
SINCE SEP 1 47 57 -10 27
SINCE JUL 1 58 68 -10 36
COOLING
TODAY 8 2 6 0
MONTH TO DATE 95 78 17 96
SINCE SEP 1 95 78 17 96
SINCE JAN 1 1003 802 201 894
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 3.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 8:00 AM
LOWEST 54 1:00 PM
AVERAGE 72
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 91 2007
2017
MINIMUM TEMPERATURE (F) 50 32 2012
SUNRISE AND SUNSET
SEPTEMBER 23 2025.....SUNRISE 6:42 AM CDT SUNSET 6:48 PM CDT
SEPTEMBER 24 2025.....SUNRISE 6:43 AM CDT SUNSET 6:46 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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