330  
CDUS43 KLOT 210634  
CLIPWK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT TUE OCT 21 2025  
   
...............................
 
 
...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR OCTOBER 20 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 66 3:11 PM 84 2003 61 5 79  
MINIMUM 37 6:05 AM 31 2018 43 -6 48  
AVERAGE 52 52 0 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.27 2008 0.09 -0.08 0.00  
MONTH TO DATE 1.64 2.12 -0.48 0.24  
SINCE SEP 1 3.34 5.16 -1.82 1.23  
SINCE JAN 1 21.11 27.50 -6.39 27.62  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 13 0 1  
MONTH TO DATE 98 197 -99 145  
SINCE SEP 1 132 279 -147 165  
SINCE JUL 1 140 286 -146 170  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 45 11 34 4  
SINCE SEP 1 185 117 68 142  
SINCE JAN 1 1109 931 178 1011    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 11.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 4:00 AM  
LOWEST 30 2:00 PM  
AVERAGE 58  
   
......................................................
 
 
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 81 2024  
MINIMUM TEMPERATURE (F) 43 28 2018  
 
SUNRISE AND SUNSET  
OCTOBER 21 2025.......SUNRISE 7:12 AM CDT SUNSET 6:00 PM CDT  
OCTOBER 22 2025.......SUNRISE 7:13 AM CDT SUNSET 5:59 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page
The Nexlab IN Page Main Text Page