AFOS product CLIAPC
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CDUS46 KMTR 140845
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1245 AM PST SAT DEC 14 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 13 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         56    405 PM  61    2004  56      0       56       
  MINIMUM         24R   720 AM  24    2007  36    -12       30       
  AVERAGE         40                        46     -6       43      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.47                                      1.74    
  SINCE JUL 1      2.20                                      5.35    
  SINCE JAN 1      4.17                                     19.12    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       25                                        22       
  MONTH TO DATE  332                                       183       
  SINCE DEC 1    332                                       183       
  SINCE JUL 1   1011                                       755       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    303                                       204       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   W (250)      
  HIGHEST WIND SPEED     6   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     1.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           500 AM                                     
 LOWEST     43           200 PM                                     
 AVERAGE    72                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        61      2006                    
 MINIMUM TEMPERATURE (F)   36        24      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 14 2013......SUNRISE   718 AM PST   SUNSET   450 PM PST   
DECEMBER 15 2013......SUNRISE   719 AM PST   SUNSET   450 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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