AFOS product CLIAPC
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CDUS46 KMTR 250835
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
131 AM PDT SAT AUG 25 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 24 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         72    402 PM 104    2010  81     -9       76       
  MINIMUM         55   1054 PM  47    2005  52      3       57       
  AVERAGE         64                        66     -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        1                                         0       
  MONTH TO DATE   13                                         2       
  SINCE JUN 1     88                                        27       
  SINCE JUL 1     30                                        10       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         2       
  MONTH TO DATE   41                                        75       
  SINCE JUN 1    147                                       309       
  SINCE JAN 1    152                                       343       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (240)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    SW (240)      
  AVERAGE WIND SPEED     9.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1000 PM                                     
 LOWEST     61           100 PM                                     
 AVERAGE    77                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   81        98      1999                    
 MINIMUM TEMPERATURE (F)   52        47      2000                    

                                                                     
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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