243  
CDUS43 KLOT 100638  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1238 AM CST THU DEC 10 2020  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 9 2020...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1997 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 52R 2:39 PM 52 1999 37 15 47  
2015  
2020  
MINIMUM 27 6:26 AM -3 2013 21 6 22  
AVERAGE 40 29 11 35  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.94 0.06 -0.06 0.02  
MONTH TO DATE 0.00 0.58 -0.58 0.07  
SINCE DEC 1 0.00 0.58 -0.58 0.07  
SINCE JAN 1 30.19 35.77 -5.58 41.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 25 36 -11 30  
MONTH TO DATE 287 308 -21 279  
SINCE DEC 1 287 308 -21 279  
SINCE JUL 1 1458 1562 -104 1655  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 943 814 129 1003    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 57 2015  
MINIMUM TEMPERATURE (F) 21 -10 2013  
 
SUNRISE AND SUNSET  
DECEMBER 10 2020......SUNRISE 7:10 AM CST SUNSET 4:22 PM CST  
DECEMBER 11 2020......SUNRISE 7:11 AM CST SUNSET 4:22 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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