392  
CDUS43 KLOT 052143  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
443 PM CDT SUN SEP 05 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 5 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 83 2:59 PM 92 1999 79 4  
MINIMUM 54 4:38 AM 42 1997 58 -4  
AVERAGE 69 68 1  
 
PRECIPITATION (IN)  
TODAY 0.00 0.08 2018 0.10 -0.10  
MONTH TO DATE 0.02 0.50 -0.48  
SINCE SEP 1 0.02 0.50 -0.48  
SINCE JAN 1 16.43 23.87 -7.44  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1  
MONTH TO DATE 0 5 -5  
SINCE SEP 1 0 5 -5  
SINCE JUL 1 0 16 -16  
 
COOLING  
TODAY 4 4 0  
MONTH TO DATE 12 24 -12  
SINCE SEP 1 12 24 -12  
SINCE JAN 1 923 748 175    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 92 2016  
MINIMUM TEMPERATURE (F) 57 41 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 5 2021.....SUNRISE 6:23 AM CDT SUNSET 7:19 PM CDT  
SEPTEMBER 6 2021.....SUNRISE 6:24 AM CDT SUNSET 7:18 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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