AFOS product CLIAPC
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CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
135 AM PDT MON APR 16 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 15 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    115 PM  82    1999  68     -4       68       
  MINIMUM         41    542 AM  30    2009  41      0       38       
  AVERAGE         53                        55     -2       53      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.16                                      0.00    
  MONTH TO DATE    3.32                                      2.23    
  SINCE OCT 1     15.35                                     35.97    
  SINCE JAN 1     12.32                                     27.02    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       12                                        12       
  MONTH TO DATE  135                                       130       
  SINCE MAR 1    573                                       395       
  SINCE JUL 1   2593                                      2278       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE MAR 1      0                                         0       
  SINCE JAN 1      0                                         0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (240)      
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED    10.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92           500 AM                                     
 LOWEST     56          1200 PM                                     
 AVERAGE    74                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   68        83      1999                    
 MINIMUM TEMPERATURE (F)   41        29      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 16 2018.........SUNRISE   632 AM PDT   SUNSET   746 PM PDT   
APRIL 17 2018.........SUNRISE   631 AM PDT   SUNSET   747 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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