679  
CDUS43 KLOT 090642  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
142 AM CDT FRI JUL 09 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JULY 8 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 69 12:58 PM 93 2002 84 -15 90  
MINIMUM 60 11:59 PM 51 2015 63 -3 70  
AVERAGE 65 74 -9 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.83 0.11 -0.11 0.00  
MONTH TO DATE T 0.84 -0.84 T  
SINCE JUN 1 6.71 4.49 2.22 0.50  
SINCE JAN 1 11.86 16.75 -4.89 18.40  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 11 33 -22 16  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 0 9 -9 15  
MONTH TO DATE 70 68 2 111  
SINCE JUN 1 320 243 77 346  
SINCE JAN 1 401 299 102 397    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 7.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 92 2001  
2012  
MINIMUM TEMPERATURE (F) 63 50 1997  
 
SUNRISE AND SUNSET  
JULY 9 2021..........SUNRISE 5:27 AM CDT SUNSET 8:30 PM CDT  
JULY 10 2021..........SUNRISE 5:27 AM CDT SUNSET 8:29 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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