890
CDUS43 KLOT 152132
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
432 PM CDT MON SEP 15 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 15 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 86 2:30 PM 89 2024 76 10 89
MINIMUM 56 5:14 AM 36 2007 54 2 60
AVERAGE 71 65 6 75
PRECIPITATION (IN)
TODAY 0.00 0.59 2013 0.10 -0.10 0.00
MONTH TO DATE 0.34 1.49 -1.15 T
SINCE SEP 1 0.34 1.49 -1.15 T
SINCE JAN 1 20.87 24.86 -3.99 24.32
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 47 25 22 22
SINCE SEP 1 47 25 22 22
SINCE JUL 1 58 36 22 31
COOLING
TODAY 6 3 3 10
MONTH TO DATE 38 60 -22 50
SINCE SEP 1 38 60 -22 50
SINCE JAN 1 946 784 162 848
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 4.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 5:00 AM
LOWEST 37 2:00 PM
AVERAGE 63
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 89 2018
2024
MINIMUM TEMPERATURE (F) 54 39 2000
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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