945  
CDUS43 KLOT 260634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT MON JUL 26 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JULY 25 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 89 11:51 AM 97 2012 84 5 88  
MINIMUM 68 4:23 AM 53 2013 64 4 64  
2014  
AVERAGE 79 74 5 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.24 0.12 -0.12 0.00  
MONTH TO DATE 1.95 2.90 -0.95 1.29  
SINCE JUN 1 8.66 6.55 2.11 1.79  
SINCE JAN 1 13.81 18.81 -5.00 19.69  
 
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 14 9 5 11  
MONTH TO DATE 203 221 -18 282  
SINCE JUN 1 453 396 57 517  
SINCE JAN 1 534 452 82 568    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 4.0  
 
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) 84 96 1997  
MINIMUM TEMPERATURE (F) 64 54 1998  
2004  
 
SUNRISE AND SUNSET  
JULY 26 2021..........SUNRISE 5:41 AM CDT SUNSET 8:17 PM CDT  
JULY 27 2021..........SUNRISE 5:42 AM CDT SUNSET 8:16 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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