AFOS product CLIAPC
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CDUS46 KMTR 180829
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1229 AM PST MON FEB 18 2019


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR FEBRUARY 17 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2019


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         56    257 PM  73    2007  60     -4       69       
  MINIMUM         34   1117 PM  31    2018  39     -5       31       
  AVERAGE         45                        49     -4       50      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.01                                      0.00    
  MONTH TO DATE    6.76                                      0.00    
  SINCE OCT 1     15.54                                      6.63    
  SINCE JAN 1     12.34                                      3.60    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       20                                        15       
  MONTH TO DATE  303                                       218       
  SINCE DEC 1   1208                                      1248       
  SINCE JUL 1   1775                                      1776       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION  NW (310)      
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED     5.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92           500 AM                                     
 LOWEST     38           300 PM                                     
 AVERAGE    65                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   60        64      2012                    
                                             2000                    
 MINIMUM TEMPERATURE (F)   39        31      2003                    

                                                                     
SUNRISE AND SUNSET                                                   
FEBRUARY 18 2019......SUNRISE   656 AM PST   SUNSET   551 PM PST   
FEBRUARY 19 2019......SUNRISE   655 AM PST   SUNSET   552 PM PST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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