829
CDUS43 KLOT 270633
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SAT SEP 27 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 26 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 85 3:56 PM 91 2017 72 13 77
MINIMUM 53 6:03 AM 38 2000 50 3 50
AVERAGE 69 61 8 64
PRECIPITATION (IN)
YESTERDAY 0.00 0.91 2011 0.10 -0.10 0.00
MONTH TO DATE 0.64 2.62 -1.98 1.42
SINCE SEP 1 0.64 2.62 -1.98 1.42
SINCE JAN 1 21.17 25.99 -4.82 25.74
DEGREE DAYS
HEATING
YESTERDAY 0 6 -6 1
MONTH TO DATE 47 74 -27 33
SINCE SEP 1 47 74 -27 33
SINCE JUL 1 58 85 -27 42
COOLING
YESTERDAY 4 2 2 0
MONTH TO DATE 101 84 17 96
SINCE SEP 1 101 84 17 96
SINCE JAN 1 1009 808 201 894
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 4.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 2:00 AM
LOWEST 35 3:00 PM
AVERAGE 64
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 88 2021
MINIMUM TEMPERATURE (F) 49 39 2001
2012
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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