146  
CDUS43 KLOT 300647  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
147 AM CDT MON AUG 30 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 29 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 1:14 PM 92 2010 80 9 81  
MINIMUM 71 11:59 PM 51 1999 60 11 59  
2001  
AVERAGE 80 70 10 70  
 
PRECIPITATION (IN)  
YESTERDAY T 1.25 0.12 -0.12 0.00  
MONTH TO DATE 2.06 3.58 -1.52 0.96  
SINCE JUN 1 11.26 10.85 0.41 3.15  
SINCE JAN 1 16.41 23.11 -6.70 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 15 6 9 5  
MONTH TO DATE 304 209 95 250  
SINCE JUN 1 815 656 159 833  
SINCE JAN 1 896 712 184 884    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 8.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 93 2013  
MINIMUM TEMPERATURE (F) 60 48 2009  
 
SUNRISE AND SUNSET  
AUGUST 30 2021........SUNRISE 6:17 AM CDT SUNSET 7:29 PM CDT  
AUGUST 31 2021........SUNRISE 6:18 AM CDT SUNSET 7:28 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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