Climatological Report (Daily)
Issued by NWS
Issued by NWS
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814
CDUS43 KLOT 312134
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT SUN AUG 31 2025
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 31 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 78 2:53 PM 91 2000 80 -2 83
2010
2012
MINIMUM 49 5:14 AM 43 2009 59 -10 58
AVERAGE 64 70 -6 71
PRECIPITATION (IN)
TODAY 0.00 0.94 2013 0.13 -0.13 0.00
MONTH TO DATE 2.86 3.84 -0.98 2.09
SINCE JUN 1 12.47 11.11 1.36 11.68
SINCE JAN 1 20.53 23.37 -2.84 24.32
DEGREE DAYS
HEATING
TODAY 1 1 0 0
MONTH TO DATE 11 2 9 6
SINCE JUN 1 29 39 -10 22
SINCE JUL 1 11 6 5 9
COOLING
TODAY 0 5 -5 6
MONTH TO DATE 243 221 22 240
SINCE JUN 1 875 668 207 744
SINCE JAN 1 908 724 184 798
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 3.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 5:00 AM
LOWEST 37 3:00 PM
AVERAGE 65
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 92 2000
2008
2011
MINIMUM TEMPERATURE (F) 59 44 2009
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:18 AM CDT SUNSET 7:28 PM CDT
SEPTEMBER 1 2025.....SUNRISE 6:19 AM CDT SUNSET 7:26 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$