104  
CDUS43 KLOT 160636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT FRI JUL 16 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JULY 15 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 80 4:36 PM 94 2006 84 -4 83  
MINIMUM 66 11:59 PM 53 2014 64 2 64  
AVERAGE 73 74 -1 74  
 
PRECIPITATION (IN)  
YESTERDAY 1.40R 0.77 0.12 1.28 0.60  
MONTH TO DATE 1.89 1.69 0.20 0.77  
SINCE JUN 1 8.60 5.34 3.26 1.27  
SINCE JAN 1 13.75 17.60 -3.85 19.17  
 
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 8 9 -1 9  
MONTH TO DATE 107 131 -24 180  
SINCE JUN 1 357 306 51 415  
SINCE JAN 1 438 362 76 466    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 9.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 96 2012  
MINIMUM TEMPERATURE (F) 64 51 2014  
 
SUNRISE AND SUNSET  
JULY 16 2021..........SUNRISE 5:32 AM CDT SUNSET 8:26 PM CDT  
JULY 17 2021..........SUNRISE 5:33 AM CDT SUNSET 8:25 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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