AFOS product CLIAPC
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148 
CDUS46 KMTR 050834
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
133 AM PDT THU SEP 5 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR SEPTEMBER 4 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         85    201 PM 100    2004  81      4       76       
  MINIMUM         48    455 AM  43    2000  51     -3       48       
  AVERAGE         67                        66      1       62      
                                                                     
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 SEP 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         3       
  MONTH TO DATE    0                                         7       
  SINCE SEP 1      0                                         7       
  SINCE JUL 1     36                                        62       
                                                                     
 COOLING                                                             
  YESTERDAY        2                                         0       
  MONTH TO DATE   18                                         5       
  SINCE SEP 1     18                                         5       
  SINCE JAN 1    255                                       158       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  SW (230)      
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    SW (240)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     W (250)      
  AVERAGE WIND SPEED     8.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96           400 AM                                     
 LOWEST     34           200 PM                                     
 AVERAGE    65                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   81        99      2008                    
 MINIMUM TEMPERATURE (F)   51        44      2010                    
                                             2005                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER  5 2013.....SUNRISE   642 AM PDT   SUNSET   732 PM PDT   
SEPTEMBER  6 2013.....SUNRISE   643 AM PDT   SUNSET   731 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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