AFOS product CLIAPC
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103 
CDUS46 KMTR 040839
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
139 AM PDT THU OCT 4 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR OCTOBER 3 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         78    216 PM  94    2014  77      1       77       
  MINIMUM         59    625 AM  38    2005  45     14       40       
  AVERAGE         69                        61      8       59      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY       MM                                         0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE OCT 1      0.00                                      0.00    
  SINCE JAN 1     12.77                                     28.18    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         6       
  MONTH TO DATE    0                                        11       
  SINCE SEP 1     70                                        48       
  SINCE JUL 1    111                                        58       
                                                                     
 COOLING                                                             
  YESTERDAY        4                                         0       
  MONTH TO DATE   11                                         0       
  SINCE SEP 1     13                                       132       
  SINCE JAN 1    165                                       514       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     7.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           400 AM                                     
 LOWEST     50           100 PM                                     
 AVERAGE    75                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   77        94      2014                    
 MINIMUM TEMPERATURE (F)   45        35      2009                    

                                                                     
SUNRISE AND SUNSET                                                   
OCTOBER  4 2018.......SUNRISE   708 AM PDT   SUNSET   647 PM PDT   
OCTOBER  5 2018.......SUNRISE   709 AM PDT   SUNSET   646 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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