AFOS product CLIAPC
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CDUS46 KMTR 020033
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
433 PM PST MON JAN 1 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 1 2018...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 TODAY                                                               
  MAXIMUM         64R   319 PM  63    2014  54     10       56       
  MINIMUM         34    759 AM  25    2016  36     -2       34       
                                      2014                          
  AVERAGE         49                        45      4       45      
                                                                     
PRECIPITATION (IN)                                                   
  TODAY            0.00                                       T      
  MONTH TO DATE    0.00                                       T      
  SINCE OCT 1      3.03                                      8.95    
  SINCE JAN 1      0.00                                       T      
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  TODAY           16                                        20       
  MONTH TO DATE   16                                        20       
  SINCE DEC 1    564                                       565       
  SINCE JUL 1   1092                                      1069       
                                                                     
 COOLING                                                             
  TODAY            0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   0   RESULTANT WIND DIRECTION   E (80)       
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     E (100)      
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION    SE (120)      
  AVERAGE WIND SPEED     1.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED TODAY.                            
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           400 AM                                     
 LOWEST     44           300 PM                                     
 AVERAGE    72                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   54        67      2014                    
 MINIMUM TEMPERATURE (F)   36        23      2000                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY  1 2018.......SUNRISE   726 AM PST   SUNSET   500 PM PST   
JANUARY  2 2018.......SUNRISE   726 AM PST   SUNSET   501 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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