AFOS product CLIAPC
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CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1226 AM PST TUE DEC 24 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 23 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         64    240 PM  66    2004  55      9       57       
  MINIMUM         32    514 AM  20    2011  36     -4       46       
  AVERAGE         48                        45      3       52      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.65    
  MONTH TO DATE    0.47                                      3.48    
  SINCE JUL 1      2.20                                      7.09    
  SINCE JAN 1      4.17                                     20.86    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       17                                        13       
  MONTH TO DATE  516                                       370       
  SINCE DEC 1    516                                       370       
  SINCE JUL 1   1195                                       942       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    303                                       204       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   E (70)       
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     E (100)      
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    SE (140)      
  AVERAGE WIND SPEED     4.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           800 AM                                     
 LOWEST     39           100 PM                                     
 AVERAGE    70                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   55        63      1999                    
 MINIMUM TEMPERATURE (F)   36        19      1998                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 24 2013......SUNRISE   724 AM PST   SUNSET   454 PM PST   
DECEMBER 25 2013......SUNRISE   724 AM PST   SUNSET   455 PM PST   

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




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