555  
CDUS43 KLOT 180640  
CLIARR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
140 AM CDT TUE AUG 18 2026  
   
...............................  
 
   
..THE AURORA MUNICIPAL AIRPORT CLIMATE SUMMARY FOR AUGUST 17 2026  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 80 2:22 PM 88 2025 82 -2 88  
MINIMUM 62 5:34 AM 48 2012 60 2 72  
AVERAGE 71 71 0 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.37 2025 0.11 -0.11 2.37  
MONTH TO DATE 5.10 1.90 3.20 3.12  
SINCE JUN 1 21.28 9.59 11.69 10.40  
SINCE JAN 1 34.52 22.17 12.35 19.92  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 19 35 -16 13  
SINCE JUL 1 2 6 -4 0  
 
COOLING  
YESTERDAY 6 6 0 15  
MONTH TO DATE 132 118 14 175  
SINCE JUN 1 567 551 16 810  
SINCE JAN 1 642 613 29 847    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 5.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 AM  
LOWEST 50 4:00 PM  
AVERAGE 75  
   
......................................................  
 
THE AURORA MUNICIPAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 90 2025  
MINIMUM TEMPERATURE (F) 60 47 2012  
 
SUNRISE AND SUNSET  
AUGUST 18 2026........SUNRISE 6:05 AM CDT SUNSET 7:49 PM CDT  
AUGUST 19 2026........SUNRISE 6:06 AM CDT SUNSET 7:48 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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