177  
CDUS43 KLOT 122240  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
440 PM CST TUE DEC 12 2023  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 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 37 1:35 PM 58 2015 36 1 42  
MINIMUM 29 7:48 AM -10 2013 22 7 33  
AVERAGE 33 29 4 38  
 
PRECIPITATION (IN)  
TODAY 0.00 0.54 2001 0.05 -0.05 0.00  
MONTH TO DATE 1.00 0.73 0.27 0.41  
SINCE DEC 1 1.00 0.73 0.27 0.41  
SINCE JAN 1 29.66 32.29 -2.63 30.25  
 
DEGREE DAYS  
HEATING  
TODAY 32 36 -4 27  
MONTH TO DATE 321 406 -85 357  
SINCE DEC 1 321 406 -85 357  
SINCE JUL 1 1487 1692 -205 1588  
 
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 17 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 10.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 1:00 AM  
LOWEST 54 4:00 PM  
AVERAGE 70  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 61 2015  
MINIMUM TEMPERATURE (F) 22 -9 2000  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 7:11 AM CST SUNSET 4:22 PM CST  
DECEMBER 13 2023......SUNRISE 7:12 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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