644  
CDUS43 KLOT 010633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1233 AM CST SAT FEB 01 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 31 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 41 12:26 PM 56 2012 31 10 37  
MINIMUM 28 11:11 PM -29 2019 16 12 34  
AVERAGE 35 23 12 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.92R 0.43 2002 0.04 0.88 0.00  
MONTH TO DATE 1.34 1.27 0.07 2.07  
SINCE DEC 1 2.41 2.94 -0.53 4.33  
SINCE JAN 1 1.34 1.27 0.07 2.07  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 42 -12 29  
MONTH TO DATE 1352 1293 59 1251  
SINCE DEC 1 2307 2427 -120 2103  
SINCE JUL 1 3221 3713 -492 3269  
 
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 31 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 11.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 12:00 AM  
LOWEST 69 6:00 PM  
AVERAGE 83  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 54 2024  
MINIMUM TEMPERATURE (F) 16 -2 2013  
 
SUNRISE AND SUNSET  
FEBRUARY 1 2025......SUNRISE 7:05 AM CST SUNSET 5:09 PM CST  
FEBRUARY 2 2025......SUNRISE 7:04 AM CST SUNSET 5:10 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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