AFOS product CLIAPC
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CDUS46 KMTR 040826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1226 AM PST FRI JAN 4 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 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         55    233 PM  62    2001  54      1       60       
  MINIMUM         27    556 AM  26    2009  36     -9       37       
  AVERAGE         41                        45     -4       49      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    T                                         0.00    
  SINCE JUL 1      7.79                                      3.58    
  SINCE JAN 1      T                                         0.00    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       24                                        16       
  MONTH TO DATE   68                                        48       
  SINCE DEC 1    608                                       646       
  SINCE JUL 1   1180                                      1316       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   E (80)       
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (90)       
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     E (80)       
  AVERAGE WIND SPEED     4.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT SNOW                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92           600 AM                                     
 LOWEST     50           100 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   54        67      2012                    
 MINIMUM TEMPERATURE (F)   36        22      2009                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY  4 2013.......SUNRISE   726 AM PST   SUNSET   503 PM PST   
JANUARY  5 2013.......SUNRISE   726 AM PST   SUNSET   504 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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