AFOS product CLIAPC
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903 
CDUS46 KMTR 140826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1225 AM PST THU FEB 14 2013


................................... 

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR FEBRUARY 13 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         61    357 PM  70    2006  59      2       56       
  MINIMUM         29    655 AM  28    2011  38     -9       37       
  AVERAGE         45                        49     -4       47      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.09    
  MONTH TO DATE    0.03                                      0.76    
  SINCE JUL 1      8.16                                      8.34    
  SINCE JAN 1      0.37                                      4.76    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       20                                        18       
  MONTH TO DATE  232                                       190       
  SINCE DEC 1   1392                                      1341       
  SINCE JUL 1   1964                                      2011       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION   S (180)      
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED     2.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           200 AM                                     
 LOWEST     51           300 PM                                     
 AVERAGE    76                                                       

..........................................................

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   60        68      2006                    
 MINIMUM TEMPERATURE (F)   39        30      2012                    

                                                                     
SUNRISE AND SUNSET                                                   
FEBRUARY 14 2013......SUNRISE   700 AM PST   SUNSET   547 PM PST   
FEBRUARY 15 2013......SUNRISE   659 AM PST   SUNSET   548 PM PST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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