588  
CDUS43 KLOT 270635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT MON SEP 27 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 26 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 84 2:37 PM 91 2017 72 12 78  
MINIMUM 50 5:16 AM 38 2000 50 0 61  
AVERAGE 67 61 6 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.91 0.10 -0.10 0.00  
MONTH TO DATE 0.93 2.62 -1.69 3.48  
SINCE SEP 1 0.93 2.62 -1.69 3.48  
SINCE JAN 1 17.34 25.99 -8.65 24.53  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 23 74 -51 72  
SINCE SEP 1 23 74 -51 72  
SINCE JUL 1 23 85 -62 76  
 
COOLING  
YESTERDAY 2 2 0 5  
MONTH TO DATE 114 84 30 48  
SINCE SEP 1 114 84 30 48  
SINCE JAN 1 1025 808 217 941    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 12.3  
 
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) 71 84 1998  
MINIMUM TEMPERATURE (F) 49 39 2001  
2012  
 
SUNRISE AND SUNSET  
SEPTEMBER 27 2021.....SUNRISE 6:46 AM CDT SUNSET 6:41 PM CDT  
SEPTEMBER 28 2021.....SUNRISE 6:47 AM CDT SUNSET 6:39 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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