922
CDUS43 KLOT 122135
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT FRI SEP 12 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 12 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 85 2:36 PM 90 2005 77 8 88
MINIMUM 55 5:44 AM 42 1997 55 0 53
AVERAGE 70 66 4 71
PRECIPITATION (IN)
TODAY 0.00 0.70 2008 0.10 -0.10 0.00
MONTH TO DATE 0.03 1.20 -1.17 T
SINCE SEP 1 0.03 1.20 -1.17 T
SINCE JAN 1 20.56 24.57 -4.01 24.32
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 47 17 30 22
SINCE SEP 1 47 17 30 22
SINCE JUL 1 58 28 30 31
COOLING
TODAY 5 3 2 6
MONTH TO DATE 15 51 -36 22
SINCE SEP 1 15 51 -36 22
SINCE JAN 1 923 775 148 820
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 7:00 AM
LOWEST 36 2:00 PM
AVERAGE 67
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 94 2005
MINIMUM TEMPERATURE (F) 55 39 2014
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 6:30 AM CDT SUNSET 7:07 PM CDT
SEPTEMBER 13 2025.....SUNRISE 6:31 AM CDT SUNSET 7:05 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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