AFOS product CLIAPC
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CDUS46 KMTR 120827
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1227 AM PST THU DEC 12 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 11 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    325 PM  64    2005  56      0       56       
  MINIMUM         25R  1247 AM  29    2005  36    -11       35       
  AVERAGE         41                        46     -5       46      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.02    
  MONTH TO DATE    0.47                                      1.74    
  SINCE JUL 1      2.20                                      5.35    
  SINCE JAN 1      4.17                                     19.12    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       24                                        19       
  MONTH TO DATE  284                                       142       
  SINCE DEC 1    284                                       142       
  SINCE JUL 1    963                                       714       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    303                                       204       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION   E (90)       
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     E (90)       
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     E (90)       
  AVERAGE WIND SPEED     7.2                                         

                                                                     
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    92           700 AM                                     
 LOWEST     35           200 PM                                     
 AVERAGE    64                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        60      2010                    
 MINIMUM TEMPERATURE (F)   36        28      2007                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 12 2013......SUNRISE   717 AM PST   SUNSET   449 PM PST   
DECEMBER 13 2013......SUNRISE   717 AM PST   SUNSET   450 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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