AFOS product CLIAPC
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CDUS46 KMTR 200826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
125 AM PDT TUE AUG 20 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 19 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         84R   227 PM  83    1999  80      4       76       
  MINIMUM         59    345 AM  48    1999  52      7       50       
  AVERAGE         72                        66      6       63      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                       T      
  SINCE JUL 1      0.00                                       T      
  SINCE JAN 1      1.97                                     13.77    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE JUN 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         2       
  MONTH TO DATE   16                                         6       
  SINCE JUN 1     66                                        93       
  SINCE JUL 1     36                                        32       
                                                                     
 COOLING                                                             
  YESTERDAY        7                                         0       
  MONTH TO DATE   43                                        37       
  SINCE JUN 1    171                                       128       
  SINCE JAN 1    191                                       142       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION   S (200)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    48   HIGHEST GUST DIRECTION     E (90)       
  AVERAGE WIND SPEED     7.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    90           300 AM                                     
 LOWEST     43           100 PM                                     
 AVERAGE    67                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        87      2007                    
 MINIMUM TEMPERATURE (F)   52        46      2000                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 20 2013........SUNRISE   629 AM PDT   SUNSET   756 PM PDT   
AUGUST 21 2013........SUNRISE   629 AM PDT   SUNSET   754 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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