554  
CDUS43 KLOT 250635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT SAT SEP 25 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 24 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 80 3:10 PM 91 2007 73 7 78  
2017  
MINIMUM 46 5:36 AM 32 2012 50 -4 51  
AVERAGE 63 62 1 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.09 0.27 0.11 -0.02 0.00  
MONTH TO DATE 0.93 2.42 -1.49 3.48  
SINCE SEP 1 0.93 2.42 -1.49 3.48  
SINCE JAN 1 17.34 25.79 -8.45 24.53  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 5 -3 0  
MONTH TO DATE 16 62 -46 72  
SINCE SEP 1 16 62 -46 72  
SINCE JUL 1 16 73 -57 76  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 112 80 32 42  
SINCE SEP 1 112 80 32 42  
SINCE JAN 1 1023 804 219 935    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 12.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 92 2017  
MINIMUM TEMPERATURE (F) 50 38 2001  
 
SUNRISE AND SUNSET  
SEPTEMBER 25 2021.....SUNRISE 6:44 AM CDT SUNSET 6:44 PM CDT  
SEPTEMBER 26 2021.....SUNRISE 6:45 AM CDT SUNSET 6:43 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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