AFOS product CLIAPC
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CDUS46 KMTR 230837
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
137 AM PDT FRI MAR 23 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MARCH 22 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         61    220 AM  72    2008  65     -4       63       
  MINIMUM         40   1152 PM  31    2008  40      0       47       
  AVERAGE         51                        53     -2       55      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.53                                      0.28    
  MONTH TO DATE    4.97                                      3.16    
  SINCE OCT 1     11.81                                     33.15    
  SINCE JAN 1      8.78                                     24.20    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       14                                        10       
  MONTH TO DATE  338                                       195       
  SINCE MAR 1    338                                       195       
  SINCE JUL 1   2358                                      2078       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  14   RESULTANT WIND DIRECTION   W (250)      
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED    16.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HEAVY RAIN                                                         
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           400 AM                                     
 LOWEST     59           400 PM                                     
 AVERAGE    76                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   65        73      2007                    
 MINIMUM TEMPERATURE (F)   40        29      2009                    

                                                                     
SUNRISE AND SUNSET                                                   
MARCH 23 2018.........SUNRISE   708 AM PDT   SUNSET   724 PM PDT   
MARCH 24 2018.........SUNRISE   706 AM PDT   SUNSET   725 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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