AFOS product CLIAPC
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CDUS46 KMTR 030830
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
129 AM PDT FRI AUG 3 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 2 2018...

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)                                                     
 YESTERDAY                                                           
  MAXIMUM         75    418 PM  95    1998  78     -3       90       
  MINIMUM         48    518 AM  45    2013  52     -4       52       
  AVERAGE         62                        65     -3       71      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE OCT 1     15.80                                     37.11    
  SINCE JAN 1     12.77                                     28.16    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        3                                         0       
  MONTH TO DATE    3                                         0       
  SINCE JUN 1     78                                        25       
  SINCE JUL 1     20                                         8       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         6       
  MONTH TO DATE    0                                        13       
  SINCE JUN 1    106                                       247       
  SINCE JAN 1    111                                       281       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION  SW (210)      
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    SW (230)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED    10.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           500 AM                                     
 LOWEST     53           200 PM                                     
 AVERAGE    73                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   78       101      1998                    
 MINIMUM TEMPERATURE (F)   52        50      2007                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST  3 2018........SUNRISE   614 AM PDT   SUNSET   817 PM PDT   
AUGUST  4 2018........SUNRISE   614 AM PDT   SUNSET   815 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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