877
CDUS43 KLOT 272132
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
432 PM CDT SAT SEP 27 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 27 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 88R 2:28 PM 88 2021 71 17 73
MINIMUM 57 6:08 AM 39 2001 49 8 58
2012
AVERAGE 73 60 13 66
PRECIPITATION (IN)
TODAY 0.00 2.00 2019 0.10 -0.10 0.00
MONTH TO DATE 0.64 2.72 -2.08 1.42
SINCE SEP 1 0.64 2.72 -2.08 1.42
SINCE JAN 1 21.17 26.09 -4.92 25.74
DEGREE DAYS
HEATING
TODAY 0 6 -6 0
MONTH TO DATE 47 80 -33 33
SINCE SEP 1 47 80 -33 33
SINCE JUL 1 58 91 -33 42
COOLING
TODAY 8 1 7 1
MONTH TO DATE 109 85 24 97
SINCE SEP 1 109 85 24 97
SINCE JAN 1 1017 809 208 895
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 6.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 4:00 AM
LOWEST 30 1:00 PM
AVERAGE 59
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 84 2013
MINIMUM TEMPERATURE (F) 49 37 2000
SUNRISE AND SUNSET
SEPTEMBER 27 2025.....SUNRISE 6:46 AM CDT SUNSET 6:41 PM CDT
SEPTEMBER 28 2025.....SUNRISE 6:47 AM CDT SUNSET 6:39 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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