617  
CDUS43 KLOT 090634  
CLIPWK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT SAT SEP 09 2023  
   
...............................
 
 
...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 8 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1996 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 2:46 PM 92 2002 78 -11 84  
MINIMUM 57 11:59 PM 52 2008 59 -2 59  
2010  
AVERAGE 62 69 -7 72  
 
PRECIPITATION (IN)  
YESTERDAY T 1.27 2020 0.11 -0.11 0.00  
MONTH TO DATE 0.14 0.88 -0.74 T  
SINCE SEP 1 0.14 0.88 -0.74 T  
SINCE JAN 1 21.05 23.22 -2.17 24.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 1 2 0  
MONTH TO DATE 3 7 -4 0  
SINCE SEP 1 3 7 -4 0  
SINCE JUL 1 7 14 -7 0  
 
COOLING  
YESTERDAY 0 5 -5 7  
MONTH TO DATE 81 44 37 65  
SINCE SEP 1 81 44 37 65  
SINCE JAN 1 801 858 -57 1045    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 7.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 7:00 AM  
LOWEST 70 4:00 PM  
AVERAGE 80  
   
......................................................
 
 
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 95 2013  
MINIMUM TEMPERATURE (F) 59 47 2008  
 
SUNRISE AND SUNSET  
SEPTEMBER 9 2023.....SUNRISE 6:25 AM CDT SUNSET 7:12 PM CDT  
SEPTEMBER 10 2023.....SUNRISE 6:26 AM CDT SUNSET 7:10 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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