AFOS product CLIAPC
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CDUS46 KMTR 090828
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
128 AM PDT FRI AUG 9 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 8 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         76    251 PM  97    2002  79     -3       87       
  MINIMUM         54   1106 PM  45    2002  52      2       47       
  AVERAGE         65                        65      0       67      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE JUL 1      0.00                                       T      
  SINCE JAN 1      1.97                                     13.77    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE JUN 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE   14                                         3       
  SINCE JUN 1     64                                        90       
  SINCE JUL 1     34                                        29       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         2       
  MONTH TO DATE    0                                        15       
  SINCE JUN 1    128                                       106       
  SINCE JAN 1    148                                       120       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   W (250)      
  HIGHEST WIND SPEED    MM   HIGHEST WIND DIRECTION    NW (300)      
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED    10.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1100 PM                                     
 LOWEST     49           500 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79       100      2002                    
 MINIMUM TEMPERATURE (F)   52        49      2009                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST  9 2013........SUNRISE   619 AM PDT   SUNSET   810 PM PDT   
AUGUST 10 2013........SUNRISE   620 AM PDT   SUNSET   808 PM PDT   

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




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