AFOS product CLIAPC
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CDUS46 KMTR 040838
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1237 AM PST WED DEC 4 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 3 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         56    236 PM  66    2011  58     -2       60       
                                      2006                          
  MINIMUM         29   1015 PM  28    2004  37     -8       37       
  AVERAGE         43                        47     -4       49      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      1.51    
  SINCE JUL 1      1.73                                      5.12    
  SINCE JAN 1      3.70                                     18.89    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       22                                        16       
  MONTH TO DATE   54                                        32       
  SINCE DEC 1     54                                        32       
  SINCE JUL 1    733                                       604       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    303                                       204       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION   W (270)      
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED     9.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100          1200 AM                                     
 LOWEST     32           200 PM                                     
 AVERAGE    66                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   57        64      2002                    
 MINIMUM TEMPERATURE (F)   36        22      2004                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  4 2013......SUNRISE   710 AM PST   SUNSET   449 PM PST   
DECEMBER  5 2013......SUNRISE   711 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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