487  
CDUS43 KLOT 042143  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
443 PM CDT MON OCT 04 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 4 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 77 11:58 AM 87 2005 68 9  
MINIMUM 59 1:16 AM 31 2004 46 13  
AVERAGE 68 57 11  
 
PRECIPITATION (IN)  
TODAY 0.17 0.98 2001 0.11 0.06  
MONTH TO DATE 0.74 0.43 0.31  
SINCE SEP 1 1.67 3.43 -1.76  
SINCE JAN 1 18.08 26.80 -8.72  
 
DEGREE DAYS  
HEATING  
TODAY 0 8 -8  
MONTH TO DATE 0 32 -32  
SINCE SEP 1 24 132 -108  
SINCE JUL 1 24 143 -119  
 
COOLING  
TODAY 3 1 2  
MONTH TO DATE 20 4 16  
SINCE SEP 1 148 92 56  
SINCE JAN 1 1059 816 243    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 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 5.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 85 1997  
2007  
MINIMUM TEMPERATURE (F) 46 27 2004  
 
SUNRISE AND SUNSET  
OCTOBER 4 2021.......SUNRISE 6:53 AM CDT SUNSET 6:29 PM CDT  
OCTOBER 5 2021.......SUNRISE 6:55 AM CDT SUNSET 6:27 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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