778  
CDUS43 KLOT 220632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1232 AM CST SAT FEB 22 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 21 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 26 3:39 PM 65 2017 37 -11 63  
MINIMUM 4R 6:57 AM 5 2008 21 -17 40  
AVERAGE 15 29 -14 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.19 2010 0.05 -0.05 0.00  
MONTH TO DATE 0.15 0.87 -0.72 0.10  
SINCE DEC 1 2.56 3.81 -1.25 4.43  
SINCE JAN 1 1.49 2.14 -0.65 2.17  
 
DEGREE DAYS  
HEATING  
YESTERDAY 50 36 14 13  
MONTH TO DATE 912 821 91 614  
SINCE DEC 1 3219 3247 -28 2717  
SINCE JUL 1 4133 4533 -400 3883  
 
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 14 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 6.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 8:00 AM  
LOWEST 59 12:00 PM  
AVERAGE 69  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 67 2017  
MINIMUM TEMPERATURE (F) 21 2 2015  
 
SUNRISE AND SUNSET  
FEBRUARY 22 2025......SUNRISE 6:38 AM CST SUNSET 5:35 PM CST  
FEBRUARY 23 2025......SUNRISE 6:37 AM CST SUNSET 5:36 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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