AFOS product CLIAPC
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CDUS46 KMTR 130845
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
145 AM PDT TUE AUG 13 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 12 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         76    250 PM  91    1998  79     -3       80       
  MINIMUM         52   1132 PM  47    2003  52      0       48       
  AVERAGE         64                        66     -2       64      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE JUL 1      0.00                                       T      
  SINCE JAN 1      1.97                                     13.77    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE JUN 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        1                                         1       
  MONTH TO DATE   16                                         4       
  SINCE JUN 1     66                                        91       
  SINCE JUL 1     36                                        30       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    2                                        25       
  SINCE JUN 1    130                                       116       
  SINCE JAN 1    150                                       130       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED     6.9                                         

                                                                     
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    93           200 AM                                     
 LOWEST     53           100 PM                                     
 AVERAGE    73                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79        91      2009                    
 MINIMUM TEMPERATURE (F)   52        43      2007                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 13 2013........SUNRISE   622 AM PDT   SUNSET   805 PM PDT   
AUGUST 14 2013........SUNRISE   623 AM PDT   SUNSET   803 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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