668  
CDUS43 KLOT 200644  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1244 AM CST MON JAN 20 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 19 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 13 12:19 AM 55 2006 30 -17 12  
MINIMUM -1 11:59 PM -5 2008 16 -17 2  
AVERAGE 6 23 -17 7  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2012 0.04 -0.04 T  
2015  
2024  
MONTH TO DATE 0.07 0.80 -0.73 1.07  
SINCE DEC 1 1.14 2.47 -1.33 3.33  
SINCE JAN 1 0.07 0.80 -0.73 1.07  
 
DEGREE DAYS  
HEATING  
YESTERDAY 59 42 17 58  
MONTH TO DATE 838 789 49 834  
SINCE DEC 1 1793 1923 -130 1686  
SINCE JUL 1 2707 3209 -502 2852  
 
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 22 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 13.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 56 11:00 PM  
LOWEST 39 3:00 PM  
AVERAGE 48  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 45 2017  
MINIMUM TEMPERATURE (F) 16 -7 2008  
 
SUNRISE AND SUNSET  
JANUARY 20 2025.......SUNRISE 7:15 AM CST SUNSET 4:53 PM CST  
JANUARY 21 2025.......SUNRISE 7:15 AM CST SUNSET 4:55 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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