428  
CDUS43 KLOT 200643  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1243 AM CST FRI DEC 20 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2024...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 34 11:24 PM 53 2002 34 0 32  
MINIMUM 24 5:44 AM -15 2016 21 3 13  
AVERAGE 29 27 2 23  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.41 2008 0.05 -0.02 0.00  
MONTH TO DATE 0.30 1.10 -0.80 1.27  
SINCE DEC 1 0.30 1.10 -0.80 1.27  
SINCE JAN 1 30.13 32.66 -2.53 29.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 36 38 -2 42  
MONTH TO DATE 682 664 18 542  
SINCE DEC 1 682 664 18 542  
SINCE JUL 1 1596 1950 -354 1708  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 927 823 104 802    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 7.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
SNOW  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 6:00 PM  
LOWEST 58 1:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 50 2015  
MINIMUM TEMPERATURE (F) 20 -9 2000  
 
SUNRISE AND SUNSET  
DECEMBER 20 2024......SUNRISE 7:17 AM CST SUNSET 4:25 PM CST  
DECEMBER 21 2024......SUNRISE 7:18 AM CST SUNSET 4:25 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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