245
CDUS43 KLOT 090648
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
148 AM CDT WED SEP 09 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 8 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 85 MM 90 2002 78 7 72
MINIMUM 62 MM 44 2024 57 5 44
2025
AVERAGE 74 67 7 58
PRECIPITATION (IN)
YESTERDAY 0.00 1.22 2008 0.11 -0.11 0.00
MONTH TO DATE T 0.81 -0.81 0.03
SINCE SEP 1 T 0.81 -0.81 0.03
SINCE JAN 1 29.14 24.18 4.96 20.56
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 7
MONTH TO DATE 0 9 -9 43
SINCE SEP 1 0 9 -9 43
SINCE JUL 1 1 20 -19 54
COOLING
YESTERDAY 9 4 5 0
MONTH TO DATE 105 36 69 2
SINCE SEP 1 105 36 69 2
SINCE JAN 1 786 760 26 910
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 6.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 1:00 AM
LOWEST 44 3:00 PM
AVERAGE 64
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 90 2013
MINIMUM TEMPERATURE (F) 56 46 2008
2010
2025
SUNRISE AND SUNSET
SEPTEMBER 9 2026.....SUNRISE 6:27 AM CDT SUNSET 7:13 PM CDT
SEPTEMBER 10 2026.....SUNRISE 6:28 AM CDT SUNSET 7:11 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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