550  
CDUS43 KLOT 100634  
CLIPWK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT SUN AUG 10 2025  
   
...............................
 
 
   
..THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR AUGUST 9 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1996 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 96R 2:10 PM 96 2005 83 13 74  
MINIMUM 77 5:32 AM 53 1999 66 11 58  
AVERAGE 87 74 13 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.17 2021 0.11 -0.11 0.00  
MONTH TO DATE 0.00 0.98 -0.98 0.50  
SINCE JUN 1 6.74 8.10 -1.36 10.77  
SINCE JAN 1 14.51 19.62 -5.11 25.06  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 21 40 -19 14  
SINCE JUL 1 0 3 -3 3  
 
COOLING  
YESTERDAY 22 9 13 1  
MONTH TO DATE 97 89 8 91  
SINCE JUN 1 729 580 149 643  
SINCE JAN 1 750 640 110 680    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 13.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 2:00 AM  
LOWEST 44 3:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 94 2021  
MINIMUM TEMPERATURE (F) 66 56 2008  
 
SUNRISE AND SUNSET  
AUGUST 10 2025........SUNRISE 5:54 AM CDT SUNSET 7:59 PM CDT  
AUGUST 11 2025........SUNRISE 5:55 AM CDT SUNSET 7:57 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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