012  
CDUS43 KLOT 290635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1235 AM CST TUE DEC 29 2020  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 28 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 1:57 PM 52 2018 32 1 50  
MINIMUM 15 11:41 PM -6 2017 16 -1 21  
AVERAGE 24 24 0 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.17 0.04 -0.04 0.48  
MONTH TO DATE 1.29 1.59 -0.30 0.55  
SINCE DEC 1 1.29 1.59 -0.30 0.55  
SINCE JAN 1 31.48 36.78 -5.30 42.41  
 
DEGREE DAYS  
HEATING  
YESTERDAY 41 41 0 29  
MONTH TO DATE 948 1048 -100 925  
SINCE DEC 1 948 1048 -100 925  
SINCE JUL 1 2119 2302 -183 2301  
 
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 10 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 9.7  
 
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) 32 57 2019  
MINIMUM TEMPERATURE (F) 16 0 2009  
 
SUNRISE AND SUNSET  
DECEMBER 29 2020......SUNRISE 7:20 AM CST SUNSET 4:30 PM CST  
DECEMBER 30 2020......SUNRISE 7:21 AM CST SUNSET 4:31 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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