846  
CDUS43 KLOT 260637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT SUN SEP 26 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 25 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 70 3:49 PM 92 2017 72 -2 78  
MINIMUM 46 5:31 AM 38 2001 50 -4 53  
AVERAGE 58 61 -3 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.23 0.10 -0.10 0.00  
MONTH TO DATE 0.93 2.52 -1.59 3.48  
SINCE SEP 1 0.93 2.52 -1.59 3.48  
SINCE JAN 1 17.34 25.89 -8.55 24.53  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 6 1 0  
MONTH TO DATE 23 68 -45 72  
SINCE SEP 1 23 68 -45 72  
SINCE JUL 1 23 79 -56 76  
 
COOLING  
YESTERDAY 0 2 -2 1  
MONTH TO DATE 112 82 30 43  
SINCE SEP 1 112 82 30 43  
SINCE JAN 1 1023 806 217 936    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 8.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 91 2017  
MINIMUM TEMPERATURE (F) 50 38 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 26 2021.....SUNRISE 6:45 AM CDT SUNSET 6:43 PM CDT  
SEPTEMBER 27 2021.....SUNRISE 6:46 AM CDT SUNSET 6:41 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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