AFOS product CLIAPC
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CDUS46 KMTR 050831
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1230 AM PST SAT DEC 5 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 4 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         60    224 PM  65    2014  57      3       65       
  MINIMUM         37    733 AM  22    2004  36      1       50       
  AVERAGE         49                        47      2       58      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.55    
  MONTH TO DATE    0.14                                      2.89    
  SINCE OCT 1      1.55                                      5.14    
  SINCE JAN 1      5.65                                     13.79    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       16                                         7       
  MONTH TO DATE   65                                        31       
  SINCE DEC 1     65                                        31       
  SINCE JUL 1    606                                       504       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    378                                       267       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   N (20)       
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     N (360)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (340)      
  AVERAGE WIND SPEED     3.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           100 AM                                     
 LOWEST     62           300 PM                                     
 AVERAGE    81                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   57        65      2011                    
 MINIMUM TEMPERATURE (F)   36        16      2013                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  5 2015......SUNRISE   710 AM PST   SUNSET   449 PM PST   
DECEMBER  6 2015......SUNRISE   711 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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