AFOS product CLIAPC
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CDUS46 KMTR 090826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1226 AM PST MON DEC 9 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 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         45    337 PM  63    2006  57    -12       56       
  MINIMUM         23   1155 PM  19    2009  36    -13       34       
  AVERAGE         34                        46    -12       45      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.47                                      1.72    
  SINCE JUL 1      2.20                                      5.33    
  SINCE JAN 1      4.17                                     19.10    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       31                                        20       
  MONTH TO DATE  201                                        98       
  SINCE DEC 1    201                                        98       
  SINCE JUL 1    880                                       670       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    303                                       204       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION  NE (40)       
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    NE (40)       
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     3.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    85          1200 AM                                     
 LOWEST     41           400 PM                                     
 AVERAGE    63                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        70      2012                    
 MINIMUM TEMPERATURE (F)   36        21      2009                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  9 2013......SUNRISE   714 AM PST   SUNSET   449 PM PST   
DECEMBER 10 2013......SUNRISE   715 AM PST   SUNSET   449 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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