349  
CDUS43 KLOT 280641  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1241 AM CST FRI FEB 28 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR FEBRUARY 27 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 50 2:27 PM 74 2024 39 11 74  
MINIMUM 30 10:08 PM -8 2015 23 7 49  
AVERAGE 40 31 9 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.79 2023 0.05 -0.05 0.26  
MONTH TO DATE 0.23 1.18 -0.95 0.38  
SINCE DEC 1 2.64 4.12 -1.48 4.71  
SINCE JAN 1 1.57 2.45 -0.88 2.45  
 
DEGREE DAYS  
HEATING  
YESTERDAY 25 34 -9 3  
MONTH TO DATE 1079 1031 48 728  
SINCE DEC 1 3386 3457 -71 2831  
SINCE JUL 1 4300 4743 -443 3997  
 
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 29 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 10.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 2:00 AM  
LOWEST 48 5:00 PM  
AVERAGE 72  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 62 2016  
MINIMUM TEMPERATURE (F) 23 -13 2015  
 
SUNRISE AND SUNSET  
FEBRUARY 28 2025......SUNRISE 6:29 AM CST SUNSET 5:42 PM CST  
MARCH 1 2025.........SUNRISE 6:27 AM CST SUNSET 5:44 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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