356  
CDUS43 KLOT 130635  
CLIARR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT SUN MAY 13 2012  
 
   
...............................  
 
   
..THE AURORA CLIMATE SUMMARY FOR MAY 12 2012  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2012  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 64 1204 AM 88 2001 69 -5 MM  
MINIMUM 50 1159 PM 36 MM 46 4 MM  
AVERAGE 57 58 -1 MM  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.55 1999 0.14 -0.11 MM  
MONTH TO DATE 2.25 1.58 0.67 MM  
SINCE JAN 1 7.50 10.20 -2.70 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 8 0 MM  
MONTH TO DATE 66 118 -52 MM  
 
COOLING  
YESTERDAY 0 1 -1 MM  
MONTH TO DATE 15 6 9 MM  
SINCE JAN 1 41 9 32 MM    
..............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 7.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 700 AM  
LOWEST 54 900 PM  
AVERAGE 69  
   
......................................................  
 
 
THE AURORA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 83 2011  
MINIMUM TEMPERATURE (F) 46 36 2001  
 
 
SUNRISE AND SUNSET  
MAY 13 2012...........SUNRISE 536 AM CDT SUNSET 805 PM CDT  
MAY 14 2012...........SUNRISE 535 AM CDT SUNSET 806 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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