AFOS product CLIAPC
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CDUS46 KMTR 090828
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
127 AM PDT WED SEP 9 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR SEPTEMBER 8 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         96    419 PM  98    2004  81     15       74       
  MINIMUM         49    411 AM  43    2002  51     -2       53       
  AVERAGE         73                        66      7       64      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE OCT 1     16.43                                      9.70    
  SINCE JAN 1      4.04                                      8.34    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         1       
  MONTH TO DATE    6                                         6       
  SINCE SEP 1      6                                         6       
  SINCE JUL 1     12                                        28       
                                                                     
 COOLING                                                             
  YESTERDAY        8                                         0       
  MONTH TO DATE   17                                        12       
  SINCE SEP 1     17                                        12       
  SINCE JAN 1    280                                       185       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SW (220)      
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED     4.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    68           300 AM                                     
 LOWEST      9           400 PM                                     
 AVERAGE    39                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   81        92      2002                    
 MINIMUM TEMPERATURE (F)   51        43      2002                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER  9 2015.....SUNRISE   645 AM PDT   SUNSET   727 PM PDT   
SEPTEMBER 10 2015.....SUNRISE   646 AM PDT   SUNSET   725 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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