AFOS product CLIAPC
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838 
CDUS46 KMTR 150841
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
131 AM PDT THU MAR 15 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MARCH 14 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         56    458 PM  80    2017  64     -8       80       
  MINIMUM         42   1158 PM  30    2002  40      2       45       
  AVERAGE         49                        52     -3       63      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.07                                      0.00    
  MONTH TO DATE    2.98                                      1.14    
  SINCE OCT 1      9.82                                     31.13    
  SINCE JAN 1      6.79                                     22.18    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       16                                         2       
  MONTH TO DATE  207                                       143       
  SINCE MAR 1    207                                       143       
  SINCE JUL 1   2227                                      2026       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  SW (240)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     W (260)      
  AVERAGE WIND SPEED     7.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  THUNDERSTORM                                                       
  RAIN                                                               
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           700 AM                                     
 LOWEST     61           300 PM                                     
 AVERAGE    81                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   64        85      2004                    
 MINIMUM TEMPERATURE (F)   40        30      2002                    

                                                                     
SUNRISE AND SUNSET                                                   
MARCH 15 2018.........SUNRISE   720 AM PDT   SUNSET   716 PM PDT   
MARCH 16 2018.........SUNRISE   719 AM PDT   SUNSET   717 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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