AFOS product CLIAPC
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CDUS46 KMTR 100830
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
130 AM PDT MON AUG 10 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 9 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         85    319 PM 100    2002  79      6       69       
  MINIMUM         50    551 AM  49    2009  52     -2       54       
  AVERAGE         68                        66      2       62      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.01                                      0.07    
  SINCE OCT 1     16.43                                      9.70    
  SINCE JAN 1      4.04                                      8.34    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         3       
  MONTH TO DATE    0                                         6       
  SINCE JUN 1     54                                        59       
  SINCE JUL 1      6                                        16       
                                                                     
 COOLING                                                             
  YESTERDAY        3                                         0       
  MONTH TO DATE   25                                         7       
  SINCE JUN 1    168                                       124       
  SINCE JAN 1    169                                       135       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    SW (240)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED     9.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           400 AM                                     
 LOWEST     42           400 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79        93      2002                    
 MINIMUM TEMPERATURE (F)   52        47      2003                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 10 2015........SUNRISE   619 AM PDT   SUNSET   809 PM PDT   
AUGUST 11 2015........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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