AFOS product CLIAPC
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531 
CDUS46 KMTR 160828
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
127 AM PDT TUE APR 16 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 15 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         63   1245 PM  82    1999  68     -5       65       
  MINIMUM         42    557 AM  30    2009  41      1       47       
  AVERAGE         53                        55     -2       56      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.71                                      1.52    
  SINCE JUL 1      9.49                                     17.07    
  SINCE JAN 1      1.70                                     13.49    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       12                                         9       
  MONTH TO DATE  110                                       195       
  SINCE MAR 1    470                                       619       
  SINCE JUL 1   2675                                      2883       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   W (270)      
  HIGHEST WIND SPEED    31   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    39   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    13.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           100 AM                                     
 LOWEST     36          1200 PM                                     
 AVERAGE    65                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   68        83      1999                    
 MINIMUM TEMPERATURE (F)   41        29      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 16 2013.........SUNRISE   632 AM PDT   SUNSET   747 PM PDT   
APRIL 17 2013.........SUNRISE   630 AM PDT   SUNSET   748 PM PDT   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




$$