210  
CDUS43 KLOT 042233  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CST MON DEC 04 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 4 2023...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 40 11:02 AM 65 1998 39 1 40  
MINIMUM 33 7:25 AM 2 2006 25 8 14  
AVERAGE 37 32 5 27  
 
PRECIPITATION (IN)  
TODAY 0.00 0.40 2017 0.06 -0.06 0.00  
MONTH TO DATE 0.82 0.26 0.56 T  
SINCE DEC 1 0.82 0.26 0.56 T  
SINCE JAN 1 29.48 31.82 -2.34 29.84  
 
DEGREE DAYS  
HEATING  
TODAY 28 33 -5 38  
MONTH TO DATE 104 130 -26 129  
SINCE DEC 1 104 130 -26 129  
SINCE JUL 1 1270 1416 -146 1360  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 802 823 -21 955    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 5.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 3:00 AM  
LOWEST 62 12:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 68 2001  
MINIMUM TEMPERATURE (F) 24 0 2005  
 
SUNRISE AND SUNSET  
DECEMBER 4 2023......SUNRISE 7:04 AM CST SUNSET 4:22 PM CST  
DECEMBER 5 2023......SUNRISE 7:05 AM CST SUNSET 4:22 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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