AFOS product CLIAPC
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CDUS46 KMTR 180827
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
127 AM PDT MON JUN 18 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JUNE 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         71    107 PM  94    2017  79     -8       94       
  MINIMUM         55   1159 PM  43    2014  50      5       61       
                                      2010                          
  AVERAGE         63                        65     -2       78      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    T                                         0.26    
  SINCE OCT 1     15.80                                     37.11    
  SINCE JAN 1     12.77                                     28.16    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        2                                         0       
  MONTH TO DATE   39                                        17       
  SINCE JUN 1     39                                        17       
  SINCE JUL 1   2898                                      2478       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                        13       
  MONTH TO DATE   16                                        42       
  SINCE JUN 1     16                                        42       
  SINCE JAN 1     21                                        76       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  12   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED    12.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    83           100 AM                                     
 LOWEST     55          1200 PM                                     
 AVERAGE    69                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79       103      2017                    
 MINIMUM TEMPERATURE (F)   50        43      2014                    

                                                                     
SUNRISE AND SUNSET                                                   
JUNE 18 2018..........SUNRISE   546 AM PDT   SUNSET   835 PM PDT   
JUNE 19 2018..........SUNRISE   546 AM PDT   SUNSET   835 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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