751  
CDUS43 KLOT 252138  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT SAT SEP 25 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 25 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 70 2:49 PM 92 2017 72 -2  
MINIMUM 46 5:31 AM 38 2001 50 -4  
AVERAGE 58 61 -3  
 
PRECIPITATION (IN)  
TODAY 0.00 0.23 2018 0.10 -0.10  
MONTH TO DATE 0.93 2.52 -1.59  
SINCE SEP 1 0.93 2.52 -1.59  
SINCE JAN 1 17.34 25.89 -8.55  
 
DEGREE DAYS  
HEATING  
TODAY 7 6 1  
MONTH TO DATE 23 68 -45  
SINCE SEP 1 23 68 -45  
SINCE JUL 1 23 79 -56  
 
COOLING  
TODAY 0 2 -2  
MONTH TO DATE 112 82 30  
SINCE SEP 1 112 82 30  
SINCE JAN 1 1023 806 217    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 9.4  
 
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) 72 91 2017  
MINIMUM TEMPERATURE (F) 50 38 2000  
 
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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