AFOS product CLIAPC
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CDUS46 KMTR 040845
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
145 AM PDT MON MAY 4 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 3 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         62    508 PM  88    2013  70     -8       68       
  MINIMUM         50   1159 PM  36    2008  44      6       47       
  AVERAGE         56                        57     -1       58      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE OCT 1     16.26                                      9.63    
  SINCE JAN 1      3.87                                      8.27    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        9                                         7       
  MONTH TO DATE   20                                        11       
  SINCE MAR 1    597                                       565       
  SINCE JUL 1   2325                                      2772       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         1       
  SINCE MAR 1      1                                         2       
  SINCE JAN 1      1                                         2       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   W (250)      
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED    12.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           100 AM                                     
 LOWEST     67           500 PM                                     
 AVERAGE    80                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   71        84      2013                    
                                             2011                    
 MINIMUM TEMPERATURE (F)   44        36      1999                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY  4 2015...........SUNRISE   609 AM PDT   SUNSET   803 PM PDT   
MAY  5 2015...........SUNRISE   608 AM PDT   SUNSET   804 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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