824  
CDUS43 KLOT 212142  
CLIARR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
442 PM CDT WED MAY 21 2025  
   
...............................  
 
   
..THE AURORA MUNICIPAL AIRPORT CLIMATE SUMMARY FOR MAY 21 2025  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 54 2:01 PM 91 2024 74 -20 91  
MINIMUM 49 5:10 AM 29 2002 51 -2 42  
AVERAGE 52 62 -10 67  
 
PRECIPITATION (IN)  
TODAY 0.01 1.62 2018 0.14 -0.13 0.00  
MONTH TO DATE 2.05 2.76 -0.71 1.59  
SINCE MAR 1 7.85 8.57 -0.72 9.34  
SINCE JAN 1 9.16 11.28 -2.12 12.44  
 
DEGREE DAYS  
HEATING  
TODAY 13 5 8 0  
MONTH TO DATE 134 161 -27 63  
SINCE MAR 1 1238 1496 -258 1186  
SINCE JUL 1 5801 6368 -567 5465  
 
COOLING  
TODAY 0 2 -2 11  
MONTH TO DATE 32 25 7 37  
SINCE MAR 1 37 31 6 44  
SINCE JAN 1 37 31 6 44    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 11.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 4:00 AM  
LOWEST 80 3:00 PM  
AVERAGE 89  
   
......................................................  
 
THE AURORA MUNICIPAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 89 2011  
MINIMUM TEMPERATURE (F) 51 36 2006  
 
SUNRISE AND SUNSET  
MAY 21 2025...........SUNRISE 5:28 AM CDT SUNSET 8:13 PM CDT  
MAY 22 2025...........SUNRISE 5:28 AM CDT SUNSET 8:14 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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