AFOS product CLIAPC
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CDUS46 KMTR 070829
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1229 AM PST FRI DEC 7 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 6 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         61    248 PM  66    2006  57      4       64       
  MINIMUM         39    715 AM  20    2013  36      3       31       
  AVERAGE         50                        47      3       48      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.63                                      0.01    
  SINCE OCT 1      1.89                                      2.98    
  SINCE JAN 1     14.66                                     31.16    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       15                                        17       
  MONTH TO DATE   96                                        93       
  SINCE DEC 1     96                                        93       
  SINCE JUL 1    663                                       621       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    182                                       530       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION  SW (210)      
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     3.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92          1200 AM                                     
 LOWEST     49           200 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   57        70      2001                    
 MINIMUM TEMPERATURE (F)   36        22      2009                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  7 2018......SUNRISE   712 AM PST   SUNSET   449 PM PST   
DECEMBER  8 2018......SUNRISE   713 AM PST   SUNSET   449 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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