AFOS product CLIAPC
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CDUS46 KMTR 250827
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
127 AM PDT FRI MAY 25 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 24 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         66    300 PM  84    2005  74     -8       68       
  MINIMUM         54   1157 PM  38    2013  47      7       54       
                                      2011                          
  AVERAGE         60                        60      0       61      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T                                         0.00    
  MONTH TO DATE    T                                          T      
  SINCE OCT 1     15.79                                     36.85    
  SINCE JAN 1     12.76                                     27.90    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        5                                         4       
  MONTH TO DATE  114                                        82       
  SINCE MAR 1    816                                       561       
  SINCE JUL 1   2836                                      2444       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    2                                        30       
  SINCE MAR 1      2                                        32       
  SINCE JAN 1      2                                        32       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION  SW (240)      
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED    11.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    89          1000 PM                                     
 LOWEST     56           300 PM                                     
 AVERAGE    73                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        83      2014                    
 MINIMUM TEMPERATURE (F)   47        42      2010                    
                                             2001                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 25 2018...........SUNRISE   551 AM PDT   SUNSET   822 PM PDT   
MAY 26 2018...........SUNRISE   550 AM PDT   SUNSET   822 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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