751  
CDUS43 KLOT 232138  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT THU SEP 23 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 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 69 2:59 PM 94 2017 73 -4  
MINIMUM 49 6:51 AM 36 2012 51 -2  
AVERAGE 59 62 -3  
 
PRECIPITATION (IN)  
TODAY 0.00 1.26 2001 0.10 -0.10  
MONTH TO DATE 0.84 2.31 -1.47  
SINCE SEP 1 0.84 2.31 -1.47  
SINCE JAN 1 17.25 25.68 -8.43  
 
DEGREE DAYS  
HEATING  
TODAY 6 5 1  
MONTH TO DATE 14 57 -43  
SINCE SEP 1 14 57 -43  
SINCE JUL 1 14 68 -54  
 
COOLING  
TODAY 0 2 -2  
MONTH TO DATE 112 78 34  
SINCE SEP 1 112 78 34  
SINCE JAN 1 1023 802 221    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 13.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 91 2007  
2017  
MINIMUM TEMPERATURE (F) 50 32 2012  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2021.....SUNRISE 6:42 AM CDT SUNSET 6:48 PM CDT  
SEPTEMBER 24 2021.....SUNRISE 6:43 AM CDT SUNSET 6:46 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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