AFOS product CLIAPC
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CDUS46 KMTR 310910
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
209 AM PDT MON AUG 31 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 30 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         83    336 PM  95    2007  81      2       88       
  MINIMUM         57    630 AM  44    2010  52      5       51       
  AVERAGE         70                        66      4       70      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.01                                      0.07    
  SINCE OCT 1     16.43                                      9.70    
  SINCE JAN 1      4.04                                      8.34    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                        12       
  SINCE JUN 1     54                                        65       
  SINCE JUL 1      6                                        22       
                                                                     
 COOLING                                                             
  YESTERDAY        5                                         5       
  MONTH TO DATE  117                                        43       
  SINCE JUN 1    260                                       160       
  SINCE JAN 1    261                                       171       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (230)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SW (240)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     7.3                                         

                                                                     
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   100           600 AM                                     
 LOWEST     43           300 PM                                     
 AVERAGE    72                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   81        94      2005                    
 MINIMUM TEMPERATURE (F)   52        42      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 31 2015........SUNRISE   638 AM PDT   SUNSET   740 PM PDT   
SEPTEMBER  1 2015.....SUNRISE   639 AM PDT   SUNSET   739 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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