AFOS product CLIAPC
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464 
CDUS46 KMTR 180826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
126 AM PDT SUN MAR 18 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MARCH 17 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         55   1143 AM  80    2004  64     -9       75       
  MINIMUM         33R  1159 PM  33    2002  40     -7       43       
  AVERAGE         44                        52     -8       59      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.03                                      0.00    
  MONTH TO DATE    3.74                                      1.14    
  SINCE OCT 1     10.58                                     31.13    
  SINCE JAN 1      7.55                                     22.18    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       21                                         6       
  MONTH TO DATE  267                                       161       
  SINCE MAR 1    267                                       161       
  SINCE JUL 1   2287                                      2044       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION   N (340)      
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     W (250)      
  AVERAGE WIND SPEED     4.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  RAIN                                                               
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           200 AM                                     
 LOWEST     59          1100 AM                                     
 AVERAGE    80                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   64        79      2004                    
 MINIMUM TEMPERATURE (F)   40        32      2002                    

                                                                     
SUNRISE AND SUNSET                                                   
MARCH 18 2018.........SUNRISE   716 AM PDT   SUNSET   719 PM PDT   
MARCH 19 2018.........SUNRISE   714 AM PDT   SUNSET   720 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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