AFOS product CLIAPC
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CDUS46 KMTR 100828
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1227 AM PST THU DEC 10 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 9 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         62   1216 PM  70    2012  56      6       62       
  MINIMUM         52    711 AM  19    2013  36     16       52       
  AVERAGE         57                        46     11       57      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.02                                      0.00    
  MONTH TO DATE    0.16                                      3.48    
  SINCE OCT 1      1.57                                      5.73    
  SINCE JAN 1      5.67                                     14.38    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        8                                         8       
  MONTH TO DATE  129                                        71       
  SINCE DEC 1    129                                        71       
  SINCE JUL 1    670                                       544       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    378                                       267       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   S (180)      
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (180)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED     4.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           100 AM                                     
 LOWEST     84          1100 AM                                     
 AVERAGE    92                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        63      2014                    
                                             2012                    
 MINIMUM TEMPERATURE (F)   36        21      2013                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 10 2015......SUNRISE   715 AM PST   SUNSET   449 PM PST   
DECEMBER 11 2015......SUNRISE   715 AM PST   SUNSET   449 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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