AFOS product CLIAPC
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991 
CDUS46 KMTR 170833
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
133 AM PDT SUN AUG 17 2014


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 16 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         81    212 PM  91    2000  80      1       86       
  MINIMUM         46R   449 AM  48    2010  52     -6       61       
                                      2000                          
  AVERAGE         64                        66     -2       74      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.07                                      0.00    
  SINCE JUL 1      0.07                                      0.00    
  SINCE JAN 1      8.34                                      1.97    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        1                                         0       
  MONTH TO DATE    9                                        16       
  SINCE JUN 1     62                                        66       
  SINCE JUL 1     19                                        36       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         9       
  MONTH TO DATE   11                                        23       
  SINCE JUN 1    128                                       151       
  SINCE JAN 1    139                                       171       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     6.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           100 AM                                     
 LOWEST     45           200 PM                                     
 AVERAGE    73                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        86      2007                    
 MINIMUM TEMPERATURE (F)   52        45      2007                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 17 2014........SUNRISE   626 AM PDT   SUNSET   800 PM PDT   
AUGUST 18 2014........SUNRISE   627 AM PDT   SUNSET   759 PM PDT   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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