AFOS product CLIAPC
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745 
CDUS46 KMTR 200843
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
143 AM PDT TUE MAR 20 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MARCH 19 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         64    355 PM  77    2001  65     -1       66       
  MINIMUM         32R   312 AM  32    2002  40     -8       54       
  AVERAGE         48                        52     -4       60      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      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       17                                         5       
  MONTH TO DATE  304                                       173       
  SINCE MAR 1    304                                       173       
  SINCE JUL 1   2324                                      2056       
                                                                     
 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   E (70)       
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (100)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    NE (60)       
  AVERAGE WIND SPEED     6.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92          1200 AM                                     
 LOWEST     40           400 PM                                     
 AVERAGE    66                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   65        83      2004                    
 MINIMUM TEMPERATURE (F)   40        34      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
MARCH 20 2018.........SUNRISE   712 AM PDT   SUNSET   721 PM PDT   
MARCH 21 2018.........SUNRISE   711 AM PDT   SUNSET   722 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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