National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
        Product Timestamp: 2015-08-20 08:41 UTC
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514 
CDUS46 KMTR 200842
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
141 AM PDT THU AUG 20 2015
................................... 
...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 19 2015...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015
WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         77    307 PM  84    2013  80     -3       73       
  MINIMUM         55    110 AM  48    1999  52      3       57       
  AVERAGE         66                        66      0       65      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.01                                      0.07    
  SINCE OCT 1     16.43                                      9.70    
  SINCE JAN 1      4.04                                      8.34    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                        12       
  SINCE JUN 1     54                                        65       
  SINCE JUL 1      6                                        22       
                                                                     
 COOLING                                                             
  YESTERDAY        1                                         0       
  MONTH TO DATE   73                                        11       
  SINCE JUN 1    216                                       128       
  SINCE JAN 1    217                                       139       
..................................................................
WIND (MPH)                                                           
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   W (250)      
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    12.4                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           100 AM                                     
 LOWEST     54           200 PM                                     
 AVERAGE    74                                                       
..........................................................
                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        87      2007                    
 MINIMUM TEMPERATURE (F)   52        46      2000                    
                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 20 2015........SUNRISE   628 AM PDT   SUNSET   756 PM PDT   
AUGUST 21 2015........SUNRISE   629 AM PDT   SUNSET   755 PM PDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          
$$