AFOS product CLIAPC
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CDUS46 KMTR 180833
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
132 AM PDT SUN AUG 18 2019


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 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         73    148 PM  86    2007  80     -7       83       
  MINIMUM         57   1147 PM  45    2007  52      5       54       
  AVERAGE         65                        66     -1       69      
                                                                     
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                                         6       
  SINCE JUN 1     48                                        81       
  SINCE JUL 1      9                                        23       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         4       
  MONTH TO DATE   76                                        40       
  SINCE JUN 1    203                                       146       
  SINCE JAN 1    209                                       151       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   S (200)      
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     S (190)      
  AVERAGE WIND SPEED    13.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           400 AM                                     
 LOWEST     57          1200 PM                                     
 AVERAGE    75                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        91      2013                    
 MINIMUM TEMPERATURE (F)   52        46      2007                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 18 2019........SUNRISE   626 AM PDT   SUNSET   759 PM PDT   
AUGUST 19 2019........SUNRISE   627 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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