AFOS product CLIAPC
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CDUS46 KMTR 090832
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
132 AM PDT THU AUG 9 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 8 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         78    359 PM  97    2002  79     -1       75       
  MINIMUM         56    623 AM  45    2002  52      4       58       
  AVERAGE         67                        65      2       67      
                                                                     
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        0                                         0       
  MONTH TO DATE    5                                         0       
  SINCE JUN 1     80                                        25       
  SINCE JUL 1     22                                         8       
                                                                     
 COOLING                                                             
  YESTERDAY        2                                         2       
  MONTH TO DATE   16                                        43       
  SINCE JUN 1    122                                       277       
  SINCE JAN 1    127                                       311       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (210)      
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED     8.1                                         

                                                                     
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          1200 AM                                     
 LOWEST     47           400 PM                                     
 AVERAGE    70                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79       100      2002                    
 MINIMUM TEMPERATURE (F)   52        49      2009                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST  9 2018........SUNRISE   619 AM PDT   SUNSET   810 PM PDT   
AUGUST 10 2018........SUNRISE   620 AM PDT   SUNSET   809 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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