AFOS product CLIAPC
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CDUS46 KMTR 110845
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1245 AM PST THU DEC 11 2014


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 10 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         63R  1159 PM  63    2012  56      7       53       
  MINIMUM         53   1024 AM  21    2013  36     17       21       
  AVERAGE         58                        46     12       37      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.15                                      0.00    
  MONTH TO DATE    3.63                                      0.47    
  SINCE JUL 1      6.26                                      2.20    
  SINCE JAN 1     14.53                                      4.17    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        7                                        28       
  MONTH TO DATE   78                                       260       
  SINCE DEC 1     78                                       260       
  SINCE JUL 1    551                                       939       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    267                                       303       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   E (100)      
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    SE (130)      
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    SE (150)      
  AVERAGE WIND SPEED    10.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100          1200 AM                                     
 LOWEST     78          1100 PM                                     
 AVERAGE    89                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        64      2005                    
 MINIMUM TEMPERATURE (F)   36        25      2013                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 11 2014......SUNRISE   716 AM PST   SUNSET   449 PM PST   
DECEMBER 12 2014......SUNRISE   716 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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