150  
CDUS43 KLOT 020637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT MON AUG 02 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 1 2021...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
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 80 2:17 PM 96 2006 83 -3 78  
MINIMUM 58 11:43 PM 51 1998 63 -5 64  
AVERAGE 69 73 -4 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.20 0.14 -0.14 0.08  
MONTH TO DATE 0.00 0.14 -0.14 0.08  
SINCE JUN 1 9.20 7.41 1.79 2.27  
SINCE JAN 1 14.35 19.67 -5.32 20.17  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 11 37 -26 16  
SINCE JUL 1 0 4 -4 0  
 
COOLING  
YESTERDAY 4 8 -4 6  
MONTH TO DATE 4 8 -4 6  
SINCE JUN 1 515 455 60 589  
SINCE JAN 1 596 511 85 640    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 8.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 97 2006  
MINIMUM TEMPERATURE (F) 63 54 2009  
 
SUNRISE AND SUNSET  
AUGUST 2 2021........SUNRISE 5:48 AM CDT SUNSET 8:10 PM CDT  
AUGUST 3 2021........SUNRISE 5:49 AM CDT SUNSET 8:09 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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