164  
CDUS43 KLOT 280637  
CLIPWK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT MON JUL 28 2025  
   
...............................
 
 
   
..THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR JULY 27 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 89 3:43 PM 90 2002 84 5 85  
2016  
2019  
MINIMUM 73 4:53 AM 57 2013 66 7 62  
AVERAGE 81 75 6 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.05 2011 0.10 -0.10 0.00  
MONTH TO DATE 2.83 2.76 0.07 5.42  
SINCE JUN 1 6.13 6.73 -0.60 10.00  
SINCE JAN 1 13.90 18.25 -4.35 24.29  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE JUN 1 21 37 -16 14  
SINCE JUL 1 0 0 0 3  
 
COOLING  
YESTERDAY 16 10 6 9  
MONTH TO DATE 316 266 50 242  
SINCE JUN 1 580 447 133 499  
SINCE JAN 1 601 507 94 536    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 4.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 5:00 AM  
LOWEST 59 3:00 PM  
AVERAGE 78  
   
......................................................
 
 
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 93 1999  
2023  
MINIMUM TEMPERATURE (F) 66 56 2005  
2013  
 
SUNRISE AND SUNSET  
JULY 28 2025..........SUNRISE 5:41 AM CDT SUNSET 8:14 PM CDT  
JULY 29 2025..........SUNRISE 5:42 AM CDT SUNSET 8:13 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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