610
CDUS43 KLOT 300633
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT TUE SEP 30 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 29 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 90R 2:36 PM 85 2014 70 20 76
MINIMUM 53 2:55 AM 35 2018 48 5 62
AVERAGE 72 59 13 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.69 2019 0.09 -0.09 0.00
MONTH TO DATE 0.64 2.90 -2.26 1.42
SINCE SEP 1 0.64 2.90 -2.26 1.42
SINCE JAN 1 21.17 26.27 -5.10 25.74
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 0
MONTH TO DATE 47 93 -46 33
SINCE SEP 1 47 93 -46 33
SINCE JUL 1 58 104 -46 42
COOLING
YESTERDAY 7 1 6 4
MONTH TO DATE 121 87 34 106
SINCE SEP 1 121 87 34 106
SINCE JAN 1 1029 811 218 904
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 2.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 3:00 AM
LOWEST 28 3:00 PM
AVERAGE 62
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 86 2019
MINIMUM TEMPERATURE (F) 48 35 2004
SUNRISE AND SUNSET
SEPTEMBER 30 2025.....SUNRISE 6:49 AM CDT SUNSET 6:36 PM CDT
OCTOBER 1 2025.......SUNRISE 6:50 AM CDT SUNSET 6:34 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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