AFOS product CLIAPC
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CDUS46 KMTR 290023
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
523 PM PDT SAT JUL 28 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JULY 27 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         74    302 PM  89    2015  78     -4       84       
  MINIMUM         52   1158 PM  49    2015  52      0       55       
                                      2000                          
  AVERAGE         63                        65     -2       70      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                       T      
  SINCE OCT 1     15.80                                     37.11    
  SINCE JAN 1     12.77                                     28.16    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        2                                         0       
  MONTH TO DATE   13                                         2       
  SINCE JUN 1     71                                        19       
  SINCE JUL 1     13                                         2       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         5       
  MONTH TO DATE   73                                       111       
  SINCE JUN 1    106                                       234       
  SINCE JAN 1    111                                       268       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     9.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96           600 AM                                     
 LOWEST     57          1200 PM                                     
 AVERAGE    77                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   78        96      2015                    
 MINIMUM TEMPERATURE (F)   52        49      2016                    

                                                                     
SUNRISE AND SUNSET                                                   
JULY 28 2018..........SUNRISE   608 AM PDT   SUNSET   822 PM PDT   
JULY 29 2018..........SUNRISE   609 AM PDT   SUNSET   821 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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