679  
CDUS43 KLOT 280642  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
142 AM CDT WED APR 28 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR APRIL 27 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 85R 4:13 PM 75 2003 65 20 68  
MINIMUM 56 11:59 PM 27 2012 41 15 36  
AVERAGE 71 53 18 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.89 0.15 -0.15 0.15  
MONTH TO DATE 0.88 2.86 -1.98 1.63  
SINCE MAR 1 1.77 5.22 -3.45 5.12  
SINCE JAN 1 2.93 7.95 -5.02 7.77  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 12 -12 13  
MONTH TO DATE 404 442 -38 508  
SINCE MAR 1 1109 1278 -169 1261  
SINCE JUL 1 5908 6033 -125 5851  
 
COOLING  
YESTERDAY 6 0 6 0  
MONTH TO DATE 10 0 10 1  
SINCE MAR 1 10 0 10 1  
SINCE JAN 1 10 0 10 1    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 13.7  
 
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) 66 80 2004  
MINIMUM TEMPERATURE (F) 42 26 2019  
 
SUNRISE AND SUNSET  
APRIL 28 2021.........SUNRISE 5:53 AM CDT SUNSET 7:49 PM CDT  
APRIL 29 2021.........SUNRISE 5:51 AM CDT SUNSET 7:50 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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