265  
CDUS43 KLOT 152149  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
449 PM CDT FRI OCT 15 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 15 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 62 2:54 PM 79 1999 63 -1  
MINIMUM 46 3:40 AM 27 1997 42 4  
2006  
AVERAGE 54 53 1  
 
PRECIPITATION (IN)  
TODAY T 0.31 2008 0.10 -0.10  
MONTH TO DATE 2.75 1.56 1.19  
SINCE SEP 1 3.68 4.56 -0.88  
SINCE JAN 1 20.09 27.93 -7.84  
 
DEGREE DAYS  
HEATING  
TODAY 11 13 -2  
MONTH TO DATE 27 151 -124  
SINCE SEP 1 51 251 -200  
SINCE JUL 1 51 262 -211  
 
COOLING  
TODAY 0 0 0  
MONTH TO DATE 46 9 37  
SINCE SEP 1 174 97 77  
SINCE JAN 1 1085 821 264    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 6.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 78 1998  
MINIMUM TEMPERATURE (F) 42 29 2018  
 
SUNRISE AND SUNSET  
OCTOBER 15 2021.......SUNRISE 7:06 AM CDT SUNSET 6:11 PM CDT  
OCTOBER 16 2021.......SUNRISE 7:07 AM CDT SUNSET 6:09 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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