280  
CDUS43 KLOT 050643  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1243 AM CST TUE JAN 05 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 4 2021...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 28 11:59 PM 55 1998 31 -3 33  
MINIMUM 22 7:30 AM -13 1999 16 6 24  
AVERAGE 25 23 2 29  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.75 0.05 -0.04 0.01  
MONTH TO DATE 0.27 0.21 0.06 0.01  
SINCE DEC 1 2.12 1.93 0.19 1.39  
SINCE JAN 1 0.27 0.21 0.06 0.01  
 
DEGREE DAYS  
HEATING  
YESTERDAY 40 42 -2 36  
MONTH TO DATE 154 166 -12 126  
SINCE DEC 1 1227 1339 -112 1134  
SINCE JUL 1 2398 2593 -195 2510  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 8.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 54 1998  
MINIMUM TEMPERATURE (F) 15 -24 1999  
 
SUNRISE AND SUNSET  
JANUARY 5 2021.......SUNRISE 7:21 AM CST SUNSET 4:37 PM CST  
JANUARY 6 2021.......SUNRISE 7:21 AM CST SUNSET 4:38 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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