434  
CDUS43 KLOT 220632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT FRI OCT 22 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 21 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 63 12:03 AM 79 2007 60 3 57  
MINIMUM 47 9:39 AM 23 2018 40 7 45  
AVERAGE 55 50 5 51  
 
PRECIPITATION (IN)  
YESTERDAY T 0.38 0.09 -0.09 0.36  
MONTH TO DATE 2.75 2.12 0.63 0.99  
SINCE SEP 1 3.68 5.12 -1.44 4.95  
SINCE JAN 1 20.09 28.49 -8.40 26.00  
 
DEGREE DAYS  
HEATING  
YESTERDAY 10 15 -5 14  
MONTH TO DATE 84 235 -151 268  
SINCE SEP 1 108 335 -227 373  
SINCE JUL 1 108 346 -238 377  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 46 9 37 1  
SINCE SEP 1 174 97 77 49  
SINCE JAN 1 1085 821 264 942    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 11.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 76 2020  
MINIMUM TEMPERATURE (F) 40 25 2013  
 
SUNRISE AND SUNSET  
OCTOBER 22 2021.......SUNRISE 7:14 AM CDT SUNSET 6:00 PM CDT  
OCTOBER 23 2021.......SUNRISE 7:15 AM CDT SUNSET 5:59 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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