AFOS product CLIAPC
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CDUS46 KMTR 210031
CLIAPC

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
531 PM PDT WED MAY 20 2020

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 20 2020...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1998 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 TODAY                                                               
  MAXIMUM         72   3:42 PM  91    2013  73     -1       67        
  MINIMUM         43   4:48 AM  39    2010  46     -3       43        
  AVERAGE         58                        60     -2       55     

PRECIPITATION (IN)                                                    
  TODAY            0.00                                      0.14     
  MONTH TO DATE    0.87                                      2.68     
  SINCE OCT 1      9.45                                     25.75     
  SINCE JAN 1      3.71                                     22.55     

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY            7                                        10        
  MONTH TO DATE  102                                       144        
  SINCE MAR 1    764                                       733        
  SINCE JUL 1   2754                                      2692        

 COOLING                                                              
  TODAY            0                                         0        
  MONTH TO DATE    3                                         0        
  SINCE MAR 1      7                                         6        
  SINCE JAN 1      7                                         6        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  SW (220)       
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (200)       
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (190)       
  AVERAGE WIND SPEED     6.9                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.1                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED TODAY.                             
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           5:00 AM                                      
 LOWEST     49           2:00 PM                                      
 AVERAGE    73                                                        

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   73        96      2000                      
 MINIMUM TEMPERATURE (F)   46        39      2008                      


SUNRISE AND SUNSET                                                    
MAY 20 2020...........SUNRISE   5:54 AM PDT   SUNSET   8:18 PM PDT     
MAY 21 2020...........SUNRISE   5:53 AM PDT   SUNSET   8:19 PM PDT     


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




$$