387  
CDUS43 KLOT 172241  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
441 PM CST THU DEC 17 2020  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 2020...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1997 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 34 12:44 PM 54 2006 34 0  
MINIMUM 30 8:02 AM -2 2000 18 12  
AVERAGE 32 26 6  
 
PRECIPITATION (IN)  
TODAY 0.00 0.05 2002 0.06 -0.06  
MONTH TO DATE 1.13 1.03 0.10  
SINCE DEC 1 1.13 1.03 0.10  
SINCE JAN 1 31.32 36.22 -4.90  
 
DEGREE DAYS  
HEATING  
TODAY 33 39 -6  
MONTH TO DATE 555 608 -53  
SINCE DEC 1 555 608 -53  
SINCE JUL 1 1726 1862 -136  
 
COOLING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE DEC 1 0 0 0  
SINCE JAN 1 943 814 129    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 5.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 54 2002  
MINIMUM TEMPERATURE (F) 18 -14 2016  
 
SUNRISE AND SUNSET  
DECEMBER 17 2020......SUNRISE 7:15 AM CST SUNSET 4:23 PM CST  
DECEMBER 18 2020......SUNRISE 7:16 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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