691  
CDUS43 KLOT 100645  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
145 AM CDT SAT JUL 10 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JULY 9 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 78 3:49 PM 92 2001 84 -6 91  
2012  
MINIMUM 54 4:04 AM 50 1997 63 -9 71  
AVERAGE 66 74 -8 81  
 
PRECIPITATION (IN)  
YESTERDAY T 2.15 0.12 -0.12 MM  
MONTH TO DATE T 0.96 -0.96 T  
SINCE JUN 1 6.71 4.61 2.10 0.50  
SINCE JAN 1 11.86 16.87 -5.01 18.40  
 
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 1 9 -8 16  
MONTH TO DATE 71 77 -6 127  
SINCE JUN 1 321 252 69 362  
SINCE JAN 1 402 308 94 413    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 4.2  
 
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) 84 95 2019  
MINIMUM TEMPERATURE (F) 63 46 1997  
 
SUNRISE AND SUNSET  
JULY 10 2021..........SUNRISE 5:27 AM CDT SUNSET 8:29 PM CDT  
JULY 11 2021..........SUNRISE 5:28 AM CDT SUNSET 8:29 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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