268
CDUS43 KLOT 182138
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CDT MON AUG 18 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 18 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 88R 2:59 PM 86 2006 82 6 79
2016
MINIMUM 72 3:42 AM 48 2012 62 10 64
AVERAGE 80 72 8 72
PRECIPITATION (IN)
TODAY 0.00 0.71 2006 0.12 -0.12 T
MONTH TO DATE 1.18 2.28 -1.10 1.56
SINCE JUN 1 10.79 9.55 1.24 11.15
SINCE JAN 1 18.85 21.81 -2.96 23.79
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 2
SINCE JUN 1 18 37 -19 18
SINCE JUL 1 0 4 -4 5
COOLING
TODAY 15 7 8 7
MONTH TO DATE 204 140 64 131
SINCE JUN 1 836 587 249 635
SINCE JAN 1 869 643 226 689
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 9.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 4:00 AM
LOWEST 70 12:00 PM
AVERAGE 79
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 89 2021
MINIMUM TEMPERATURE (F) 62 51 1997
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 6:04 AM CDT SUNSET 7:48 PM CDT
AUGUST 19 2025........SUNRISE 6:06 AM CDT SUNSET 7:47 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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