237  
CDUS43 KLOT 312236  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
436 PM CST SUN DEC 31 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 31 2023...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 35 12:35 AM 56 2006 32 3 38  
MINIMUM 30 6:49 AM -5 2017 18 12 21  
AVERAGE 33 25 8 30  
 
PRECIPITATION (IN)  
TODAY T 6.02 2008 0.05 -0.05 0.00  
MONTH TO DATE 2.25 1.67 0.58 1.91  
SINCE DEC 1 2.25 1.67 0.58 1.91  
SINCE JAN 1 30.91 33.23 -2.32 31.75  
 
DEGREE DAYS  
HEATING  
TODAY 32 40 -8 35  
MONTH TO DATE 852 1134 -282 1150  
SINCE DEC 1 852 1134 -282 1150  
SINCE JUL 1 2018 2420 -402 2381  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 802 823 -21 955    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 8.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LT FREEZING RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 4:00 AM  
LOWEST 75 1:00 AM  
AVERAGE 84  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 47 2000  
MINIMUM TEMPERATURE (F) 18 -12 2018  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 7:21 AM CST SUNSET 4:31 PM CST  
JANUARY 1 2024.......SUNRISE 7:21 AM CST SUNSET 4:32 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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