115  
CDUS43 KLOT 192239  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
439 PM CST TUE DEC 19 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 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 32 2:37 PM 53 2002 34 -2 25  
MINIMUM 13 5:30 AM -15 2016 21 -8 7  
AVERAGE 23 27 -4 16  
 
PRECIPITATION (IN)  
TODAY 0.00 0.41 2008 0.05 -0.05 0.00  
MONTH TO DATE 1.27 1.10 0.17 1.90  
SINCE DEC 1 1.27 1.10 0.17 1.90  
SINCE JAN 1 29.93 32.66 -2.73 31.74  
 
DEGREE DAYS  
HEATING  
TODAY 42 38 4 49  
MONTH TO DATE 542 664 -122 617  
SINCE DEC 1 542 664 -122 617  
SINCE JUL 1 1708 1950 -242 1848  
 
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 S (180)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 7.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 8:00 AM  
LOWEST 52 11:00 AM  
AVERAGE 66  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 50 2015  
MINIMUM TEMPERATURE (F) 20 -9 2000  
 
SUNRISE AND SUNSET  
DECEMBER 19 2023......SUNRISE 7:16 AM CST SUNSET 4:24 PM CST  
DECEMBER 20 2023......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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