AFOS product CLIAPC
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CDUS46 KMTR 150859
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1259 AM PST TUE DEC 15 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 14 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         57    254 PM  61    2006  56      1       52       
  MINIMUM         28    638 AM  24    2008  36     -8       43       
  AVERAGE         43                        46     -3       48      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.10    
  MONTH TO DATE    0.64                                      7.17    
  SINCE OCT 1      2.05                                      9.42    
  SINCE JAN 1      6.15                                     18.07    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       22                                        17       
  MONTH TO DATE  215                                       139       
  SINCE DEC 1    215                                       139       
  SINCE JUL 1    756                                       612       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    378                                       267       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  NW (320)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     N (350)      
  AVERAGE WIND SPEED     5.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           300 AM                                     
 LOWEST     30           200 PM                                     
 AVERAGE    65                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   55        64      1998                    
 MINIMUM TEMPERATURE (F)   36        26      2005                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 15 2015......SUNRISE   718 AM PST   SUNSET   450 PM PST   
DECEMBER 16 2015......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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