767  
CDUS43 KLOT 290633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT THU JUL 29 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JULY 28 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 3:57 PM 91 2006 84 4 86  
MINIMUM 72 5:15 AM 53 2013 63 9 62  
AVERAGE 80 74 6 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.35 0.61 0.12 0.23 0.00  
MONTH TO DATE 2.30 3.26 -0.96 1.64  
SINCE JUN 1 9.01 6.91 2.10 2.14  
SINCE JAN 1 14.16 19.17 -5.01 20.04  
 
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 15 9 6 9  
MONTH TO DATE 242 248 -6 319  
SINCE JUN 1 492 423 69 554  
SINCE JAN 1 573 479 94 605    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 7.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 95 1999  
MINIMUM TEMPERATURE (F) 63 52 1997  
2003  
2013  
 
SUNRISE AND SUNSET  
JULY 29 2021..........SUNRISE 5:44 AM CDT SUNSET 8:14 PM CDT  
JULY 30 2021..........SUNRISE 5:45 AM CDT SUNSET 8:13 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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