155
CDUS43 KLOT 210635
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST SUN DEC 21 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 2025...
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)
YESTERDAY
MAXIMUM 39 3:11 PM 50 2015 34 5 34
MINIMUM 22 12:50 AM -9 2000 20 2 18
AVERAGE 31 27 4 26
PRECIPITATION (IN)
YESTERDAY 0.00 0.79 2012 0.05 -0.05 0.02
MONTH TO DATE 0.53 1.15 -0.62 0.32
SINCE DEC 1 0.53 1.15 -0.62 0.32
SINCE JAN 1 26.23 32.71 -6.48 30.15
DEGREE DAYS
HEATING
YESTERDAY 34 38 -4 39
MONTH TO DATE 881 702 179 721
SINCE DEC 1 881 702 179 721
SINCE JUL 1 1964 1988 -24 1635
COOLING
YESTERDAY 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 (310)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 15.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 12:00 AM
LOWEST 49 9:00 PM
AVERAGE 65
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 34 52 2015
MINIMUM TEMPERATURE (F) 20 -8 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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