AFOS product CLIAPC
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CDUS46 KMTR 010845
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
145 AM PDT FRI JUN 1 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 31 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         70    307 PM  96    2001  76     -6       79       
  MINIMUM         48   1159 PM  41    2011  48      0       54       
  AVERAGE         59                        62     -3       67      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                       T      
  MONTH TO DATE    0.01                                       T      
  SINCE OCT 1     15.80                                     36.85    
  SINCE JAN 1     12.77                                     27.90    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        6                                         0       
  MONTH TO DATE  137                                        99       
  SINCE MAR 1    839                                       578       
  SINCE JUL 1   2859                                      2461       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         2       
  MONTH TO DATE    5                                        32       
  SINCE MAR 1      5                                        34       
  SINCE JAN 1      5                                        34       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION  SW (240)      
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED    10.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1100 PM                                     
 LOWEST     42           400 PM                                     
 AVERAGE    68                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   76        91      2013                    
 MINIMUM TEMPERATURE (F)   48        40      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
JUNE  1 2018..........SUNRISE   548 AM PDT   SUNSET   827 PM PDT   
JUNE  2 2018..........SUNRISE   547 AM PDT   SUNSET   827 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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