AFOS product CLIAPC
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151 
CDUS46 KMTR 160836
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
136 AM PDT WED SEP 16 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR SEPTEMBER 15 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         71    206 PM  91    2004  80     -9       83       
  MINIMUM         53   1140 PM  39    2006  50      3       52       
  AVERAGE         62                        65     -3       68      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    T                                         0.00    
  SINCE OCT 1     16.43                                      9.70    
  SINCE JAN 1      4.04                                      8.34    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        3                                         0       
  MONTH TO DATE   12                                         6       
  SINCE SEP 1     12                                         6       
  SINCE JUL 1     18                                        28       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         3       
  MONTH TO DATE   52                                        35       
  SINCE SEP 1     52                                        35       
  SINCE JAN 1    315                                       208       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION   W (250)      
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION     W (260)      
  AVERAGE WIND SPEED    13.2                                         

                                                                     
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    89          1100 PM                                     
 LOWEST     38           200 PM                                     
 AVERAGE    64                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        85      2004                    
 MINIMUM TEMPERATURE (F)   49        38      2006                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 16 2015.....SUNRISE   652 AM PDT   SUNSET   716 PM PDT   
SEPTEMBER 17 2015.....SUNRISE   652 AM PDT   SUNSET   714 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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