AFOS product CLIAPC
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CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
134 AM PDT FRI APR 27 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 26 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         MM        MM  91    2004  69     MM       69        
  MINIMUM         MM        MM  32    2009  43     MM       55        
  AVERAGE         MM                        56     MM       62      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.01    
  MONTH TO DATE    3.76                                      3.11    
  SINCE OCT 1     15.79                                     36.85    
  SINCE JAN 1     12.76                                     27.90    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       MM                                         3       
  MONTH TO DATE  225                                       201       
  SINCE MAR 1    663                                       466       
  SINCE JUL 1   2683                                      2349       
                                                                     
 COOLING                                                             
  YESTERDAY       MM                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   W (260)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     W (260)      
  AVERAGE WIND SPEED    12.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86           900 PM                                     
 LOWEST     56           100 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   70        91      2004                    
 MINIMUM TEMPERATURE (F)   43        35      2003                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 27 2018.........SUNRISE   617 AM PDT   SUNSET   757 PM PDT   
APRIL 28 2018.........SUNRISE   616 AM PDT   SUNSET   758 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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