AFOS product CLIAPC
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CDUS46 KMTR 220844
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
144 AM PDT WED MAY 22 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 21 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         75   1234 PM  96    2000  73      2       73       
  MINIMUM         50   1159 PM  39    2008  46      4       48       
  AVERAGE         63                        60      3       61      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.05                                      0.01    
  SINCE JUL 1      9.54                                     17.28    
  SINCE JAN 1      1.75                                     13.70    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        2                                         4       
  MONTH TO DATE   52                                       105       
  SINCE MAR 1    591                                       788       
  SINCE JUL 1   2796                                      3052       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE   15                                         6       
  SINCE MAR 1     18                                        13       
  SINCE JAN 1     18                                        13       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   W (270)      
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    14.0                                         

                                                                     
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    83          1200 AM                                     
 LOWEST     33          1200 PM                                     
 AVERAGE    58                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        92      2000                    
 MINIMUM TEMPERATURE (F)   46        35      2010                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 22 2013...........SUNRISE   553 AM PDT   SUNSET   819 PM PDT   
MAY 23 2013...........SUNRISE   552 AM PDT   SUNSET   820 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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