859  
CDUS43 KLOT 150634  
CLIPWK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT THU MAY 15 2025  
   
...............................
 
 
   
..THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR MAY 14 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 78 3:10 PM 90 2007 69 9 58  
MINIMUM 55 12:21 AM 40 1999 49 6 51  
2015  
2016  
AVERAGE 67 59 8 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.72 2018 0.13 -0.13 0.05  
MONTH TO DATE 0.61 1.80 -1.19 2.00  
SINCE MAR 1 4.78 6.95 -2.17 8.73  
SINCE JAN 1 6.51 9.56 -3.05 12.06  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 7 -7 10  
MONTH TO DATE 126 129 -3 64  
SINCE MAR 1 1261 1449 -188 1160  
SINCE JUL 1 5490 5958 -468 5005  
 
COOLING  
YESTERDAY 2 1 1 0  
MONTH TO DATE 3 11 -8 4  
SINCE MAR 1 6 19 -13 8  
SINCE JAN 1 6 19 -13 8    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 4.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 AM  
LOWEST 56 3:00 PM  
AVERAGE 78  
   
......................................................
 
 
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 89 1998  
MINIMUM TEMPERATURE (F) 49 34 2016  
 
SUNRISE AND SUNSET  
MAY 15 2025...........SUNRISE 5:31 AM CDT SUNSET 8:06 PM CDT  
MAY 16 2025...........SUNRISE 5:30 AM CDT SUNSET 8:07 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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