AFOS product CLIAPC
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052 
CDUS46 KMTR 170826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
126 AM PDT WED APR 17 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 16 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         69    355 PM  83    1999  68      1       68       
  MINIMUM         34    509 AM  29    2008  41     -7       43       
  AVERAGE         52                        55     -3       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       13                                         9       
  MONTH TO DATE  123                                       204       
  SINCE MAR 1    483                                       628       
  SINCE JUL 1   2688                                      2892       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION   N (340)      
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     N (10)       
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     N (360)      
  AVERAGE WIND SPEED    10.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    82           400 AM                                     
 LOWEST     16           300 PM                                     
 AVERAGE    49                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   68        78      1999                    
 MINIMUM TEMPERATURE (F)   42        32      2004                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 17 2013.........SUNRISE   630 AM PDT   SUNSET   748 PM PDT   
APRIL 18 2013.........SUNRISE   629 AM PDT   SUNSET   749 PM PDT   

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




$$