447  
CDUS43 KLOT 070635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT SAT AUG 07 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 6 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 83 3:44 PM 90 2001 83 0 82  
MINIMUM 67 11:28 PM 48 2004 63 4 60  
AVERAGE 75 73 2 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.91 0.13 -0.13 0.00  
MONTH TO DATE 0.00 0.81 -0.81 0.14  
SINCE JUN 1 9.20 8.08 1.12 2.33  
SINCE JAN 1 14.35 20.34 -5.99 20.23  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 4  
SINCE JUN 1 11 37 -26 20  
SINCE JUL 1 0 4 -4 4  
 
COOLING  
YESTERDAY 10 8 2 6  
MONTH TO DATE 35 48 -13 21  
SINCE JUN 1 546 495 51 604  
SINCE JAN 1 627 551 76 655    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 10.4  
 
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) 83 94 2001  
MINIMUM TEMPERATURE (F) 63 50 2004  
 
SUNRISE AND SUNSET  
AUGUST 7 2021........SUNRISE 5:53 AM CDT SUNSET 8:04 PM CDT  
AUGUST 8 2021........SUNRISE 5:54 AM CDT SUNSET 8:02 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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