AFOS product CLIAPC
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CDUS46 KMTR 180827
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
126 AM PDT WED JUL 18 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JULY 17 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         78    337 PM  99    2003  78      0       86       
  MINIMUM         54    144 AM  47    2009  53      1       58       
  AVERAGE         66                        65      1       72      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                      0.00    
  SINCE OCT 1     15.80                                     37.11    
  SINCE JAN 1     12.77                                     28.16    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    9                                         2       
  SINCE JUN 1     67                                        19       
  SINCE JUL 1      9                                         2       
                                                                     
 COOLING                                                             
  YESTERDAY        1                                         7       
  MONTH TO DATE   46                                        77       
  SINCE JUN 1     79                                       200       
  SINCE JAN 1     84                                       234       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     S (160)      
  AVERAGE WIND SPEED     9.2                                         

                                                                     
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    93          1200 AM                                     
 LOWEST     58           200 PM                                     
 AVERAGE    76                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   78        95      1998                    
 MINIMUM TEMPERATURE (F)   53        50      2012                    
                                             2009                    

                                                                     
SUNRISE AND SUNSET                                                   
JULY 18 2018..........SUNRISE   600 AM PDT   SUNSET   830 PM PDT   
JULY 19 2018..........SUNRISE   601 AM PDT   SUNSET   829 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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