AFOS product CLIAPC
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CDUS46 KMTR 180829
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
129 AM PDT THU SEP 18 2014


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR SEPTEMBER 17 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         82    144 PM  94    2000  80      2       80       
  MINIMUM         56    611 AM  42    2006  49      7       54       
  AVERAGE         69                        64      5       67      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE JUL 1      0.07                                      0.00    
  SINCE JAN 1      8.34                                      1.97    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    6                                         1       
  SINCE SEP 1      6                                         1       
  SINCE JUL 1     28                                        37       
                                                                     
 COOLING                                                             
  YESTERDAY        4                                         2       
  MONTH TO DATE   41                                        57       
  SINCE SEP 1     41                                        57       
  SINCE JAN 1    214                                       294       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     S (190)      
  AVERAGE WIND SPEED    10.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           300 AM                                     
 LOWEST     36           200 PM                                     
 AVERAGE    68                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        97      2000                    
 MINIMUM TEMPERATURE (F)   49        38      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 18 2014.....SUNRISE   653 AM PDT   SUNSET   712 PM PDT   
SEPTEMBER 19 2014.....SUNRISE   654 AM PDT   SUNSET   711 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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