AFOS product CLIAPC
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CDUS46 KMTR 260039
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
539 PM PDT SAT AUG 25 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 25 2018...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 TODAY                                                               
  MAXIMUM         73    326 PM  98    1999  81     -8       79       
  MINIMUM         57    907 AM  47    2000  52      5       56       
  AVERAGE         65                        66     -1       68      
                                                                     
PRECIPITATION (IN)                                                   
  TODAY            0.00                                      0.00    
  MONTH TO DATE    0.00                                       T      
  SINCE OCT 1     15.80                                     37.11    
  SINCE JAN 1     12.77                                     28.16    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  TODAY            0                                         0       
  MONTH TO DATE   13                                         2       
  SINCE JUN 1     88                                        27       
  SINCE JUL 1     30                                        10       
                                                                     
 COOLING                                                             
  TODAY            0                                         3       
  MONTH TO DATE   41                                        78       
  SINCE JUN 1    147                                       312       
  SINCE JAN 1    152                                       346       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     6.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED TODAY.                            
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           100 AM                                     
 LOWEST     57           200 PM                                     
 AVERAGE    75                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   81        98      2017                    
 MINIMUM TEMPERATURE (F)   52        45      2005                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 25 2018........SUNRISE   633 AM PDT   SUNSET   749 PM PDT   
AUGUST 26 2018........SUNRISE   634 AM PDT   SUNSET   747 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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