702  
CDUS43 KLOT 110635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT MON OCT 11 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 10 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 79 3:43 PM 84 2010 65 14 77  
MINIMUM 68 11:16 AM 28 2000 44 24 54  
AVERAGE 74 55 19 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.47 0.10 -0.07 0.00  
MONTH TO DATE 1.37 1.04 0.33 0.17  
SINCE SEP 1 2.30 4.04 -1.74 4.13  
SINCE JAN 1 18.71 27.41 -8.70 25.18  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 11 -11 0  
MONTH TO DATE 0 91 -91 105  
SINCE SEP 1 24 191 -167 210  
SINCE JUL 1 24 202 -178 214  
 
COOLING  
YESTERDAY 9 0 9 1  
MONTH TO DATE 42 9 33 1  
SINCE SEP 1 170 97 73 49  
SINCE JAN 1 1081 821 260 942    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 11.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 82 2010  
MINIMUM TEMPERATURE (F) 44 28 2009  
 
SUNRISE AND SUNSET  
OCTOBER 11 2021.......SUNRISE 7:01 AM CDT SUNSET 6:17 PM CDT  
OCTOBER 12 2021.......SUNRISE 7:02 AM CDT SUNSET 6:16 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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