344  
CDUS43 KLOT 182234  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CST WED DEC 18 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 18 2024...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 35 2:25 AM 54 2002 35 0 35  
MINIMUM 30 7:39 AM -14 2016 21 9 17  
AVERAGE 33 28 5 26  
 
PRECIPITATION (IN)  
TODAY T 0.56 2002 0.05 -0.05 T  
MONTH TO DATE 0.27 1.05 -0.78 1.27  
SINCE DEC 1 0.27 1.05 -0.78 1.27  
SINCE JAN 1 30.10 32.61 -2.51 29.93  
 
DEGREE DAYS  
HEATING  
TODAY 32 37 -5 39  
MONTH TO DATE 643 626 17 500  
SINCE DEC 1 643 626 17 500  
SINCE JUL 1 1557 1912 -355 1666  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 927 823 104 802    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 11.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
LIGHT SNOW  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 2:00 AM  
LOWEST 58 4:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 53 2002  
MINIMUM TEMPERATURE (F) 21 -15 2016  
 
SUNRISE AND SUNSET  
DECEMBER 18 2024......SUNRISE 7:16 AM CST SUNSET 4:24 PM CST  
DECEMBER 19 2024......SUNRISE 7:17 AM CST SUNSET 4:24 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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