506  
CDUS43 KLOT 180637  
CLIUGN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT MON AUG 18 2025  
   
...............................  
 
   
..THE WAUKEGAN IL CLIMATE SUMMARY FOR AUGUST 17 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 2000 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 11:27 AM 87 2002 80 1 83  
2016  
MINIMUM 71 11:14 PM 52 2013 61 10 69  
AVERAGE 76 71 5 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.07 0.66 2000 0.12 -0.05 0.10  
MONTH TO DATE 0.92 1.97 -1.05 2.01  
SINCE JUN 1 10.72 9.90 0.82 14.29  
SINCE JAN 1 19.15 22.74 -3.59 33.04  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 39 86 -47 35  
SINCE JUL 1 3 13 -10 6  
 
COOLING  
YESTERDAY 11 6 5 11  
MONTH TO DATE 179 110 69 123  
SINCE JUN 1 714 441 273 546  
SINCE JAN 1 723 473 250 561    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 6.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91 2:00 AM  
LOWEST 64 1:00 PM  
AVERAGE 78  
   
......................................................  
 
THE WAUKEGAN IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 87 2016  
MINIMUM TEMPERATURE (F) 61 51 2012  
 
SUNRISE AND SUNSET  
AUGUST 18 2025........SUNRISE 6:02 AM CDT SUNSET 7:48 PM CDT  
AUGUST 19 2025........SUNRISE 6:03 AM CDT SUNSET 7:46 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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