AFOS product CLIAPC
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CDUS46 KMTR 300836
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
136 AM PDT MON JUL 30 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JULY 29 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         73    240 PM  85    2015  78     -5       71       
  MINIMUM         54    153 AM  49    2010  52      2       54       
  AVERAGE         64                        65     -1       63      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        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                                                             
  YESTERDAY        1                                         2       
  MONTH TO DATE   15                                         5       
  SINCE JUN 1     73                                        22       
  SINCE JUL 1     15                                         5       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE   73                                       111       
  SINCE JUN 1    106                                       234       
  SINCE JAN 1    111                                       268       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION  SW (210)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED    10.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           300 AM                                     
 LOWEST     57           100 PM                                     
 AVERAGE    75                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   78        88      2012                    
 MINIMUM TEMPERATURE (F)   52        46      2017                    

                                                                     
SUNRISE AND SUNSET                                                   
JULY 30 2018..........SUNRISE   610 AM PDT   SUNSET   821 PM PDT   
JULY 31 2018..........SUNRISE   611 AM PDT   SUNSET   820 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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