AFOS product CLIAPC
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104 
CDUS46 KMTR 230827
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
127 AM PDT WED MAY 23 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 22 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         68    342 PM  92    2000  74     -6       80       
  MINIMUM         53    126 AM  35    2013  46      7       51       
                                      2010                          
  AVERAGE         61                        60      1       66      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                       T      
  SINCE OCT 1     15.79                                     36.85    
  SINCE JAN 1     12.76                                     27.90    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        4                                         0       
  MONTH TO DATE  103                                        77       
  SINCE MAR 1    805                                       556       
  SINCE JUL 1   2825                                      2439       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         1       
  MONTH TO DATE    2                                        30       
  SINCE MAR 1      2                                        32       
  SINCE JAN 1      2                                        32       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION  SW (220)      
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED    12.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    89           100 AM                                     
 LOWEST     58           400 PM                                     
 AVERAGE    74                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        91      2000                    
 MINIMUM TEMPERATURE (F)   47        31      2010                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 23 2018...........SUNRISE   552 AM PDT   SUNSET   820 PM PDT   
MAY 24 2018...........SUNRISE   552 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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