697
CDUS43 KLOT 212235
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CST SUN DEC 21 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 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 31 3:36 PM 52 2015 34 -3 27
MINIMUM 12 7:49 AM -8 2000 20 -8 10
AVERAGE 22 27 -5 19
PRECIPITATION (IN)
TODAY 0.00 0.74 2015 0.05 -0.05 0.00
MONTH TO DATE 0.53 1.20 -0.67 0.32
SINCE DEC 1 0.53 1.20 -0.67 0.32
SINCE JAN 1 26.23 32.76 -6.53 30.15
DEGREE DAYS
HEATING
TODAY 43 38 5 46
MONTH TO DATE 924 740 184 767
SINCE DEC 1 924 740 184 767
SINCE JUL 1 2007 2026 -19 1681
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1084 823 261 927
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 8.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 8:00 AM
LOWEST 44 1:00 PM
AVERAGE 57
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 53 2006
MINIMUM TEMPERATURE (F) 20 -10 2000
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 7:17 AM CST SUNSET 4:25 PM CST
DECEMBER 22 2025......SUNRISE 7:18 AM CST SUNSET 4:26 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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