704  
CDUS43 KLOT 122144  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
444 PM CDT THU AUG 12 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 12 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 85 11:18 AM 94 2010 83 2  
MINIMUM 68 6:05 AM 48 2004 63 5  
AVERAGE 77 72 5  
 
PRECIPITATION (IN)  
TODAY 0.01 0.70 2005 0.13 -0.12  
MONTH TO DATE 1.82 1.52 0.30  
SINCE JUN 1 11.02 8.79 2.23  
SINCE JAN 1 16.17 21.05 -4.88  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE JUN 1 11 37 -26  
SINCE JUL 1 0 4 -4  
 
COOLING  
TODAY 12 8 4  
MONTH TO DATE 115 96 19  
SINCE JUN 1 626 543 83  
SINCE JAN 1 707 599 108    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 9.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 91 2010  
MINIMUM TEMPERATURE (F) 63 50 2004  
 
SUNRISE AND SUNSET  
AUGUST 12 2021........SUNRISE 5:58 AM CDT SUNSET 7:57 PM CDT  
AUGUST 13 2021........SUNRISE 5:59 AM CDT SUNSET 7:56 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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