AFOS product CLIAPC
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CDUS46 KMTR 210827
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
127 AM PDT MON OCT 21 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR OCTOBER 20 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         74    249 PM  85    2003  73      1       75       
  MINIMUM         40    330 AM  36    2008  42     -2       50       
  AVERAGE         57                        58     -1       63      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.02    
  SINCE JUL 1      0.84                                      0.02    
  SINCE JAN 1      2.81                                     13.79    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE SEP 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        8                                         2       
  MONTH TO DATE  123                                        64       
  SINCE SEP 1    151                                       144       
  SINCE JUL 1    187                                       199       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    4                                        36       
  SINCE SEP 1     66                                        51       
  SINCE JAN 1    303                                       204       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   S (180)      
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     N (350)      
  AVERAGE WIND SPEED     4.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           400 AM                                     
 LOWEST     38           100 PM                                     
 AVERAGE    69                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   73        87      1999                    
 MINIMUM TEMPERATURE (F)   42        35      2004                    

                                                                     
SUNRISE AND SUNSET                                                   
OCTOBER 21 2013.......SUNRISE   724 AM PDT   SUNSET   623 PM PDT   
OCTOBER 22 2013.......SUNRISE   725 AM PDT   SUNSET   621 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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