121  
CDUS43 KLOT 222144  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
444 PM CDT WED SEP 22 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 22 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 63 2:23 PM 94 2017 73 -10  
MINIMUM 56 7:16 AM 38 1999 51 5  
AVERAGE 60 62 -2  
 
PRECIPITATION (IN)  
TODAY 0.00 2.34 2006 0.10 -0.10  
MONTH TO DATE 0.84 2.21 -1.37  
SINCE SEP 1 0.84 2.21 -1.37  
SINCE JAN 1 17.25 25.58 -8.33  
 
DEGREE DAYS  
HEATING  
TODAY 5 5 0  
MONTH TO DATE 7 52 -45  
SINCE SEP 1 7 52 -45  
SINCE JUL 1 7 63 -56  
 
COOLING  
TODAY 0 2 -2  
MONTH TO DATE 112 76 36  
SINCE SEP 1 112 76 36  
SINCE JAN 1 1023 800 223    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 15.8  
 
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 94 2017  
MINIMUM TEMPERATURE (F) 51 36 2012  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2021.....SUNRISE 6:41 AM CDT SUNSET 6:50 PM CDT  
SEPTEMBER 23 2021.....SUNRISE 6:42 AM CDT SUNSET 6:48 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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