443
CDUS43 KLOT 040638
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT THU SEP 04 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 3 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 70 2:53 PM 91 2023 79 -9 77
MINIMUM 55 11:59 PM 49 2024 58 -3 49
AVERAGE 63 69 -6 63
PRECIPITATION (IN)
YESTERDAY 0.03 0.97 2018 0.10 -0.07 0.00
MONTH TO DATE 0.03 0.30 -0.27 0.00
SINCE SEP 1 0.03 0.30 -0.27 0.00
SINCE JAN 1 20.56 23.67 -3.11 24.32
DEGREE DAYS
HEATING
YESTERDAY 2 1 1 2
MONTH TO DATE 2 3 -1 3
SINCE SEP 1 2 3 -1 3
SINCE JUL 1 13 14 -1 12
COOLING
YESTERDAY 0 5 -5 0
MONTH TO DATE 2 15 -13 2
SINCE SEP 1 2 15 -13 2
SINCE JAN 1 910 739 171 800
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 9.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 4:00 PM
LOWEST 56 8:00 PM
AVERAGE 72
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 93 2012
MINIMUM TEMPERATURE (F) 58 49 2000
2020
2024
SUNRISE AND SUNSET
SEPTEMBER 4 2025.....SUNRISE 6:22 AM CDT SUNSET 7:21 PM CDT
SEPTEMBER 5 2025.....SUNRISE 6:23 AM CDT SUNSET 7:19 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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