312  
CDUS43 KLOT 180639  
CLIPWK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
139 AM CDT SUN MAY 18 2025  
   
...............................  
 
   
..THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR MAY 17 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 71 4:04 PM 87 1998 70 1 76  
MINIMUM 55 11:57 PM 36 2002 50 5 55  
AVERAGE 63 60 3 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.59 2020 0.11 -0.11 0.00  
MONTH TO DATE 0.61 2.15 -1.54 2.15  
SINCE MAR 1 4.78 7.30 -2.52 8.88  
SINCE JAN 1 6.51 9.91 -3.40 12.21  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 7 -5 0  
MONTH TO DATE 128 150 -22 73  
SINCE MAR 1 1263 1470 -207 1169  
SINCE JUL 1 5492 5979 -487 5014  
 
COOLING  
YESTERDAY 0 2 -2 1  
MONTH TO DATE 18 16 2 5  
SINCE MAR 1 21 24 -3 9  
SINCE JAN 1 21 24 -3 9    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 14.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 64 9:00 AM  
LOWEST 41 3:00 PM  
AVERAGE 53  
   
......................................................  
 
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 92 1998  
MINIMUM TEMPERATURE (F) 50 35 2002  
 
SUNRISE AND SUNSET  
MAY 18 2025...........SUNRISE 5:28 AM CDT SUNSET 8:09 PM CDT  
MAY 19 2025...........SUNRISE 5:27 AM CDT SUNSET 8:10 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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