AFOS product CLIAPC
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CDUS46 KMTR 100825
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1225 AM PST TUE DEC 10 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 9 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         49    259 PM  70    2012  56     -7       70       
  MINIMUM         19R   739 AM  21    2009  36    -17       36       
  AVERAGE         34                        46    -12       53      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.47                                      1.72    
  SINCE JUL 1      2.20                                      5.33    
  SINCE JAN 1      4.17                                     19.10    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       31                                        12       
  MONTH TO DATE  232                                       110       
  SINCE DEC 1    232                                       110       
  SINCE JUL 1    911                                       682       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    303                                       204       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   E (90)       
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     E (100)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     E (90)       
  AVERAGE WIND SPEED     5.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84           200 AM                                     
 LOWEST     26           200 PM                                     
 AVERAGE    55                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        63      2012                    
 MINIMUM TEMPERATURE (F)   36        26      2007                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 10 2013......SUNRISE   715 AM PST   SUNSET   449 PM PST   
DECEMBER 11 2013......SUNRISE   716 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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