168  
CDUS43 KLOT 080637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT SUN AUG 08 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 7 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 88 3:22 PM 94 2001 83 5 84  
MINIMUM 65 5:14 AM 50 2004 63 2 55  
AVERAGE 77 73 4 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.37 0.11 -0.11 0.00  
MONTH TO DATE 0.00 0.92 -0.92 0.14  
SINCE JUN 1 9.20 8.19 1.01 2.33  
SINCE JAN 1 14.35 20.45 -6.10 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 12 8 4 5  
MONTH TO DATE 47 56 -9 26  
SINCE JUN 1 558 503 55 609  
SINCE JAN 1 639 559 80 660    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 7.6  
 
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 92 2001  
MINIMUM TEMPERATURE (F) 63 52 1997  
1999  
2017  
 
SUNRISE AND SUNSET  
AUGUST 8 2021........SUNRISE 5:54 AM CDT SUNSET 8:02 PM CDT  
AUGUST 9 2021........SUNRISE 5:55 AM CDT SUNSET 8:01 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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