AFOS product CLIAPC
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CDUS46 KMTR 120826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
126 AM PDT MON AUG 12 2019


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 11 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         85    429 PM  92    1998  79      6       81       
  MINIMUM         51    551 AM  45    2005  52     -1       59       
  AVERAGE         68                        66      2       70      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE OCT 1     25.85                                     15.80    
  SINCE JAN 1     22.65                                     12.77    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         5       
  SINCE JUN 1     48                                        80       
  SINCE JUL 1      9                                        22       
                                                                     
 COOLING                                                             
  YESTERDAY        3                                         5       
  MONTH TO DATE   34                                        27       
  SINCE JUN 1    161                                       133       
  SINCE JAN 1    167                                       138       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   S (200)      
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     S (190)      
  AVERAGE WIND SPEED     5.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100          1200 AM                                     
 LOWEST     31           500 PM                                     
 AVERAGE    66                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79        91      1998                    
 MINIMUM TEMPERATURE (F)   52        47      2015                    
                                             2003                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 12 2019........SUNRISE   621 AM PDT   SUNSET   807 PM PDT   
AUGUST 13 2019........SUNRISE   622 AM PDT   SUNSET   805 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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