AFOS product CLIAPC
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CDUS46 KMTR 210827
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
127 AM PDT THU MAR 21 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MARCH 20 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         58    516 PM  83    2004  65     -7       64       
  MINIMUM         49   1159 PM  34    2008  40      9       46       
  AVERAGE         54                        52      2       55      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.05                                      0.00    
  MONTH TO DATE    0.15                                      3.72    
  SINCE JUL 1      8.56                                     12.58    
  SINCE JAN 1      0.77                                      9.00    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                                                 
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       11                                        10       
  MONTH TO DATE  246                                       286       
  SINCE MAR 1    246                                       286       
  SINCE JUL 1   2451                                      2550       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   W (250)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     6.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96          1000 PM                                     
 LOWEST     83           800 AM                                     
 AVERAGE    90                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   65        76      2000                    
 MINIMUM TEMPERATURE (F)   40        31      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
MARCH 21 2013.........SUNRISE   711 AM PDT   SUNSET   722 PM PDT   
MARCH 22 2013.........SUNRISE   709 AM PDT   SUNSET   723 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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