587
CDUS43 KLOT 112137
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT THU SEP 11 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 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 80 MM 91 2005 77 3 85
2019
MINIMUM 60 MM 43 1999 56 4 53
AVERAGE 70 66 4 69
PRECIPITATION (IN)
TODAY 0.00 0.89 2006 0.09 -0.09 0.00
MONTH TO DATE 0.03 1.10 -1.07 T
SINCE SEP 1 0.03 1.10 -1.07 T
SINCE JAN 1 20.56 24.47 -3.91 24.32
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 47 15 32 22
SINCE SEP 1 47 15 32 22
SINCE JUL 1 58 26 32 31
COOLING
TODAY 5 4 1 4
MONTH TO DATE 10 48 -38 16
SINCE SEP 1 10 48 -38 16
SINCE JAN 1 918 772 146 814
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 6.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 6:00 AM
LOWEST 45 12:00 PM
AVERAGE 66
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 90 2005
MINIMUM TEMPERATURE (F) 55 42 1997
SUNRISE AND SUNSET
SEPTEMBER 11 2025.....SUNRISE 6:29 AM CDT SUNSET 7:09 PM CDT
SEPTEMBER 12 2025.....SUNRISE 6:30 AM CDT SUNSET 7:07 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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