739  
CDUS43 KLOT 210632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1232 AM CST FRI FEB 21 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 20 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 22 3:42 PM 69 2017 37 -15 57  
MINIMUM 2 7:40 AM -9 2015 20 -18 23  
AVERAGE 12 28 -16 40  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.74 2011 0.05 -0.05 0.00  
MONTH TO DATE 0.15 0.82 -0.67 0.10  
SINCE DEC 1 2.56 3.76 -1.20 4.43  
SINCE JAN 1 1.49 2.09 -0.60 2.17  
 
DEGREE DAYS  
HEATING  
YESTERDAY 53 37 16 25  
MONTH TO DATE 862 785 77 601  
SINCE DEC 1 3169 3211 -42 2704  
SINCE JUL 1 4083 4497 -414 3870  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 9.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 8:00 PM  
LOWEST 55 11:00 AM  
AVERAGE 63  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 65 2017  
MINIMUM TEMPERATURE (F) 21 5 2008  
 
SUNRISE AND SUNSET  
FEBRUARY 21 2025......SUNRISE 6:40 AM CST SUNSET 5:34 PM CST  
FEBRUARY 22 2025......SUNRISE 6:38 AM CST SUNSET 5:35 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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