848
CDUS43 KLOT 150633
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT MON SEP 15 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 14 2025...
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)
YESTERDAY
MAXIMUM 86 2:10 PM 89 2024 76 10 89
MINIMUM 61 5:36 AM 39 2011 55 6 60
AVERAGE 74 65 9 75
PRECIPITATION (IN)
YESTERDAY 0.00 1.21 2008 0.10 -0.10 0.00
MONTH TO DATE 0.34 1.39 -1.05 T
SINCE SEP 1 0.34 1.39 -1.05 T
SINCE JAN 1 20.87 24.76 -3.89 24.32
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 47 22 25 22
SINCE SEP 1 47 22 25 22
SINCE JUL 1 58 33 25 31
COOLING
YESTERDAY 9 3 6 10
MONTH TO DATE 32 57 -25 40
SINCE SEP 1 32 57 -25 40
SINCE JAN 1 940 781 159 838
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 6.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 51 2:00 PM
AVERAGE 74
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 89 2024
MINIMUM TEMPERATURE (F) 54 36 2007
SUNRISE AND SUNSET
SEPTEMBER 15 2025.....SUNRISE 6:33 AM CDT SUNSET 7:02 PM CDT
SEPTEMBER 16 2025.....SUNRISE 6:34 AM CDT SUNSET 7:00 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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