AFOS product CLIAPC
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CDUS46 KMTR 120828
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1227 AM PST FRI DEC 12 2014


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 11 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         64R   236 AM  64    2005  56      8       56       
  MINIMUM         50   1159 PM  25    2013  36     14       25       
  AVERAGE         57                        46     11       41      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        3.17                                      0.00    
  MONTH TO DATE    6.80                                      0.47    
  SINCE JUL 1      9.43                                      2.20    
  SINCE JAN 1     17.70                                      4.17    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        8                                        24       
  MONTH TO DATE   86                                       284       
  SINCE DEC 1     86                                       284       
  SINCE JUL 1    559                                       963       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    267                                       303       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   S (160)      
  HIGHEST WIND SPEED    31   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    39   HIGHEST GUST DIRECTION     S (190)      
  AVERAGE WIND SPEED    10.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           900 AM                                     
 LOWEST     72          1200 AM                                     
 AVERAGE    86                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        60      2010                    
 MINIMUM TEMPERATURE (F)   36        26      2013                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 12 2014......SUNRISE   716 AM PST   SUNSET   449 PM PST   
DECEMBER 13 2014......SUNRISE   717 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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