337  
CDUS43 KLOT 160637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1237 AM CST WED DEC 16 2020  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 15 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 33 2:48 PM 56 2011 35 -2 26  
MINIMUM 15 6:56 AM -3 2016 19 -4 17  
AVERAGE 24 27 -3 22  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.31 0.06 -0.06 T  
MONTH TO DATE 1.13 0.92 0.21 0.07  
SINCE DEC 1 1.13 0.92 0.21 0.07  
SINCE JAN 1 31.32 36.11 -4.79 41.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 41 38 3 43  
MONTH TO DATE 487 531 -44 516  
SINCE DEC 1 487 531 -44 516  
SINCE JUL 1 1658 1785 -127 1892  
 
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 6 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 8.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 54 2006  
2015  
MINIMUM TEMPERATURE (F) 19 3 2013  
 
SUNRISE AND SUNSET  
DECEMBER 16 2020......SUNRISE 7:15 AM CST SUNSET 4:23 PM CST  
DECEMBER 17 2020......SUNRISE 7:15 AM CST SUNSET 4:23 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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