AFOS product CLIAPC
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835 
CDUS46 KMTR 250828
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
128 AM PDT SAT MAY 25 2013


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 24 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         72    417 PM  84    2005  74     -2       75       
  MINIMUM         38R   442 AM  38    2011  47     -9       43       
  AVERAGE         55                        60     -5       59      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.05                                      0.01    
  SINCE JUL 1      9.54                                     17.28    
  SINCE JAN 1      1.75                                     13.70    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       10                                         6       
  MONTH TO DATE   82                                       113       
  SINCE MAR 1    621                                       796       
  SINCE JUL 1   2826                                      3060       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE   15                                         6       
  SINCE MAR 1     18                                        13       
  SINCE JAN 1     18                                        13       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (230)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     7.8                                         

                                                                     
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    86           400 AM                                     
 LOWEST     34           400 PM                                     
 AVERAGE    60                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        80      2000                    
 MINIMUM TEMPERATURE (F)   47        42      2010                    
                                             2001                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 25 2013...........SUNRISE   551 AM PDT   SUNSET   822 PM PDT   
MAY 26 2013...........SUNRISE   550 AM PDT   SUNSET   823 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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