AFOS product CLIAPC
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CDUS46 KMTR 060837
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1237 AM PST SAT JAN 6 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 5 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         60   1252 PM  70    2014  54      6       52       
  MINIMUM         53   1159 PM  24    2014  37     16       31       
  AVERAGE         57                        45     12       42      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.17                                      0.00    
  MONTH TO DATE    0.35                                      1.77    
  SINCE OCT 1      3.38                                     10.72    
  SINCE JAN 1      0.35                                      1.77    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        8                                        23       
  MONTH TO DATE   56                                        87       
  SINCE DEC 1    604                                       632       
  SINCE JUL 1   1132                                      1136       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   W (260)      
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     4.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           500 AM                                     
 LOWEST     86           200 PM                                     
 AVERAGE    93                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   54        66      2003                    
 MINIMUM TEMPERATURE (F)   37        25      2007                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY  6 2018.......SUNRISE   726 AM PST   SUNSET   504 PM PST   
JANUARY  7 2018.......SUNRISE   726 AM PST   SUNSET   505 PM PST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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