AFOS product CLIAPC
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CDUS46 KMTR 170826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
126 AM PDT THU OCT 17 2019


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR OCTOBER 16 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2019


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         68    249 PM  88    1999  74     -6       80       
  MINIMUM         37R   440 AM  38    2018  43     -6       38       
                                      2013                          
  AVERAGE         53                        59     -6       59      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE OCT 1      0.00                                      0.00    
  SINCE JAN 1     22.66                                     12.77    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       12                                         6       
  MONTH TO DATE   75                                        39       
  SINCE SEP 1    115                                       109       
  SINCE JUL 1    130                                       150       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    2                                        28       
  SINCE SEP 1     76                                        30       
  SINCE JAN 1    334                                       182       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  SW (240)      
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (250)      
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED     6.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           200 AM                                     
 LOWEST     56           400 PM                                     
 AVERAGE    78                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        87      2012                    
                                             2008                    
 MINIMUM TEMPERATURE (F)   43        37      2006                    

                                                                     
SUNRISE AND SUNSET                                                   
OCTOBER 17 2019.......SUNRISE   720 AM PDT   SUNSET   629 PM PDT   
OCTOBER 18 2019.......SUNRISE   721 AM PDT   SUNSET   627 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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