AFOS product CLIAPC
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807 
CDUS46 KMTR 190826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
126 AM PDT FRI APR 19 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 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         76    319 PM  78    2009  69      7       70       
  MINIMUM         41    105 AM  33    2005  42     -1       48       
  AVERAGE         59                        55      4       59      
                                                                     
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        6                                         6       
  MONTH TO DATE  136                                       220       
  SINCE MAR 1    496                                       644       
  SINCE JUL 1   2701                                      2908       
                                                                     
 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   W (270)      
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     E (90)       
  AVERAGE WIND SPEED     5.9                                         

                                                                     
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    80          1100 PM                                     
 LOWEST     22          1100 AM                                     
 AVERAGE    51                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   69        87      2009                    
 MINIMUM TEMPERATURE (F)   42        33      2007                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 19 2013.........SUNRISE   627 AM PDT   SUNSET   749 PM PDT   
APRIL 20 2013.........SUNRISE   626 AM PDT   SUNSET   750 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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