AFOS product CLIAPC
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178 
CDUS46 KMTR 090910
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
210 AM PDT TUE APR 9 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 8 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         70    420 PM  73    2003  67      3       69       
  MINIMUM         43   1003 PM  29    2001  41      2       36       
  AVERAGE         57                        54      3       53      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.71                                      0.00    
  SINCE JUL 1      9.49                                     15.55    
  SINCE JAN 1      1.70                                     11.97    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        8                                        12       
  MONTH TO DATE   57                                       115       
  SINCE MAR 1    417                                       539       
  SINCE JUL 1   2622                                      2803       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  12   RESULTANT WIND DIRECTION  NW (310)      
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     N (340)      
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION     N (10)       
  AVERAGE WIND SPEED    13.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    83          1000 PM                                     
 LOWEST     15           400 PM                                     
 AVERAGE    49                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        75      2004                    
 MINIMUM TEMPERATURE (F)   41        30      2011                    
                                             1999                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL  9 2013.........SUNRISE   642 AM PDT   SUNSET   740 PM PDT   
APRIL 10 2013.........SUNRISE   640 AM PDT   SUNSET   741 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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