317  
CDUS43 KLOT 270641  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
141 AM CDT FRI AUG 27 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 26 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 4:35 PM 93 2018 81 8 92  
MINIMUM 67 5:20 AM 51 1997 60 7 71  
2017  
AVERAGE 78 71 7 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.50 0.12 -0.12 0.00  
MONTH TO DATE 2.05 3.21 -1.16 0.96  
SINCE JUN 1 11.25 10.48 0.77 3.15  
SINCE JAN 1 16.40 22.74 -6.34 21.05  
 
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 13 6 7 17  
MONTH TO DATE 255 191 64 208  
SINCE JUN 1 766 638 128 791  
SINCE JAN 1 847 694 153 842    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (170)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 4.9  
 
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) 81 93 2020  
MINIMUM TEMPERATURE (F) 60 47 2015  
 
SUNRISE AND SUNSET  
AUGUST 27 2021........SUNRISE 6:14 AM CDT SUNSET 7:34 PM CDT  
AUGUST 28 2021........SUNRISE 6:15 AM CDT SUNSET 7:33 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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