454  
CDUS43 KLOT 292134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT WED SEP 29 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 29 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 84 2:59 PM 85 2014 70 14  
MINIMUM 50 6:07 AM 35 2018 48 2  
AVERAGE 67 59 8  
 
PRECIPITATION (IN)  
TODAY 0.00 0.69 2019 0.09 -0.09  
MONTH TO DATE 0.93 2.90 -1.97  
SINCE SEP 1 0.93 2.90 -1.97  
SINCE JAN 1 17.34 26.27 -8.93  
 
DEGREE DAYS  
HEATING  
TODAY 0 7 -7  
MONTH TO DATE 24 93 -69  
SINCE SEP 1 24 93 -69  
SINCE JUL 1 24 104 -80  
 
COOLING  
TODAY 2 1 1  
MONTH TO DATE 124 87 37  
SINCE SEP 1 124 87 37  
SINCE JAN 1 1035 811 224    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (120)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 2.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 86 2019  
MINIMUM TEMPERATURE (F) 48 35 2004  
 
SUNRISE AND SUNSET  
SEPTEMBER 29 2021.....SUNRISE 6:48 AM CDT SUNSET 6:38 PM CDT  
SEPTEMBER 30 2021.....SUNRISE 6:49 AM CDT SUNSET 6:36 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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