AFOS product CLIAPC
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CDUS46 KMTR 280844
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1243 AM PST SUN JAN 28 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 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         62    311 PM  71    2012  56      6       61       
  MINIMUM         35    415 AM  28    2001  38     -3       36       
  AVERAGE         49                        47      2       49      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    3.60                                     12.11    
  SINCE OCT 1      6.63                                     21.06    
  SINCE JAN 1      3.60                                     12.11    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       16                                        16       
  MONTH TO DATE  421                                       442       
  SINCE DEC 1    969                                       987       
  SINCE JUL 1   1497                                      1491       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION  NW (330)      
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED     2.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           400 AM                                     
 LOWEST     57           100 PM                                     
 AVERAGE    79                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        68      2014                    
 MINIMUM TEMPERATURE (F)   38        27      2012                    
                                             1999                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 28 2018.......SUNRISE   717 AM PST   SUNSET   528 PM PST   
JANUARY 29 2018.......SUNRISE   716 AM PST   SUNSET   529 PM PST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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