AFOS product CLIAPC
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CDUS46 KMTR 050826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1226 AM PST THU DEC 5 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 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         53    140 PM  64    2002  57     -4       60       
  MINIMUM         24   1047 PM  22    2004  36    -12       49       
  AVERAGE         39                        47     -8       55      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.06    
  MONTH TO DATE    0.00                                      1.57    
  SINCE JUL 1      1.73                                      5.18    
  SINCE JAN 1      3.70                                     18.95    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       26                                        10       
  MONTH TO DATE   80                                        42       
  SINCE DEC 1     80                                        42       
  SINCE JUL 1    759                                       614       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    303                                       204       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  NE (30)       
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     N (350)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     N (360)      
  AVERAGE WIND SPEED     5.5                                         

                                                                     
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    75           300 AM                                     
 LOWEST     16          1200 PM                                     
 AVERAGE    46                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   57        65      2011                    
 MINIMUM TEMPERATURE (F)   36        25      2009                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  5 2013......SUNRISE   711 AM PST   SUNSET   449 PM PST   
DECEMBER  6 2013......SUNRISE   712 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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