AFOS product CLIAPC
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CDUS46 KMTR 240027
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
526 PM PDT WED MAY 23 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 23 2018...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)                                                     
 TODAY                                                               
  MAXIMUM         63    213 PM  91    2000  74    -11       76       
  MINIMUM         55    613 AM  31    2010  47      8       51       
  AVERAGE         59                        60     -1       64      
                                                                     
PRECIPITATION (IN)                                                   
  TODAY            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                                                             
  TODAY            6                                         1       
  MONTH TO DATE  109                                        78       
  SINCE MAR 1    811                                       557       
  SINCE JUL 1   2831                                      2440       
                                                                     
 COOLING                                                             
  TODAY            0                                         0       
  MONTH TO DATE    2                                        30       
  SINCE MAR 1      2                                        32       
  SINCE JAN 1      2                                        32       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   W (260)      
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED    10.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86          1200 AM                                     
 LOWEST     67           200 PM                                     
 AVERAGE    77                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        84      2005                    
 MINIMUM TEMPERATURE (F)   47        38      2013                    
                                             2011                    

                                                                     
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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