AFOS product CLIAPC
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127 
CDUS46 KMTR 190828
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
128 AM PDT TUE MAR 19 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MARCH 18 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         65    343 PM  79    2004  64      1       56       
  MINIMUM         36    500 AM  32    2002  40     -4       40       
  AVERAGE         51                        52     -1       48      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.10                                      3.72    
  SINCE JUL 1      8.51                                     12.58    
  SINCE JAN 1      0.72                                      9.00    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       14                                        17       
  MONTH TO DATE  224                                       256       
  SINCE MAR 1    224                                       256       
  SINCE JUL 1   2429                                      2520       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION  SW (210)      
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (190)      
  AVERAGE WIND SPEED     4.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           500 AM                                     
 LOWEST     48           100 PM                                     
 AVERAGE    74                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   65        77      2001                    
 MINIMUM TEMPERATURE (F)   40        32      2002                    

                                                                     
SUNRISE AND SUNSET                                                   
MARCH 19 2013.........SUNRISE   714 AM PDT   SUNSET   720 PM PDT   
MARCH 20 2013.........SUNRISE   712 AM PDT   SUNSET   721 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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