947
CDUS43 KLOT 040638
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT FRI SEP 04 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 3 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 91R MM 91 2023 79 12 70
MINIMUM 74 MM 49 2024 58 16 55
AVERAGE 83 69 14 63
PRECIPITATION (IN)
YESTERDAY 0.00 0.97 2018 0.10 -0.10 0.03
MONTH TO DATE T 0.30 -0.30 0.03
SINCE SEP 1 T 0.30 -0.30 0.03
SINCE JAN 1 29.14 23.67 5.47 20.56
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 2
MONTH TO DATE 0 3 -3 2
SINCE SEP 1 0 3 -3 2
SINCE JUL 1 1 14 -13 13
COOLING
YESTERDAY 18 5 13 0
MONTH TO DATE 55 15 40 2
SINCE SEP 1 55 15 40 2
SINCE JAN 1 736 739 -3 910
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 6.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 1:00 AM
LOWEST 52 4:00 PM
AVERAGE 73
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 93 2012
MINIMUM TEMPERATURE (F) 58 44 2025
SUNRISE AND SUNSET
SEPTEMBER 4 2026.....SUNRISE 6:22 AM CDT SUNSET 7:21 PM CDT
SEPTEMBER 5 2026.....SUNRISE 6:23 AM CDT SUNSET 7:20 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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