641
CDUS43 KLOT 020643
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
143 AM CDT THU OCT 02 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 1 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 79 2:20 PM 87 2019 70 9 70
MINIMUM 60 6:22 AM 31 2003 48 12 50
AVERAGE 70 58 12 60
PRECIPITATION (IN)
YESTERDAY 0.00 1.29 2018 0.11 -0.11 0.00
MONTH TO DATE 0.00 0.11 -0.11 0.00
SINCE SEP 1 0.64 3.11 -2.47 1.42
SINCE JAN 1 21.17 26.48 -5.31 25.74
DEGREE DAYS
HEATING
YESTERDAY 0 8 -8 5
MONTH TO DATE 0 8 -8 5
SINCE SEP 1 47 108 -61 38
SINCE JUL 1 58 119 -61 47
COOLING
YESTERDAY 5 1 4 0
MONTH TO DATE 5 1 4 0
SINCE SEP 1 132 89 43 110
SINCE JAN 1 1040 813 227 908
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 6.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 1:00 AM
LOWEST 45 1:00 PM
AVERAGE 68
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 83 2005
2017
2023
MINIMUM TEMPERATURE (F) 47 27 2003
SUNRISE AND SUNSET
OCTOBER 2 2025.......SUNRISE 6:51 AM CDT SUNSET 6:32 PM CDT
OCTOBER 3 2025.......SUNRISE 6:52 AM CDT SUNSET 6:31 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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