557  
CDUS43 KLOT 050634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT TUE OCT 05 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 4 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 77 11:58 AM 87 2005 68 9 56  
MINIMUM 59 1:16 AM 31 2004 46 13 35  
AVERAGE 68 57 11 46  
 
PRECIPITATION (IN)  
YESTERDAY 0.17 0.98 0.11 0.06 T  
MONTH TO DATE 0.74 0.43 0.31 0.17  
SINCE SEP 1 1.67 3.43 -1.76 4.13  
SINCE JAN 1 18.08 26.80 -8.72 25.18  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 8 -8 19  
MONTH TO DATE 0 32 -32 67  
SINCE SEP 1 24 132 -108 172  
SINCE JUL 1 24 143 -119 176  
 
COOLING  
YESTERDAY 3 1 2 0  
MONTH TO DATE 20 4 16 0  
SINCE SEP 1 148 92 56 48  
SINCE JAN 1 1059 816 243 941    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 7.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 85 1997  
2007  
MINIMUM TEMPERATURE (F) 46 27 2004  
 
SUNRISE AND SUNSET  
OCTOBER 5 2021.......SUNRISE 6:55 AM CDT SUNSET 6:27 PM CDT  
OCTOBER 6 2021.......SUNRISE 6:56 AM CDT SUNSET 6:26 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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