AFOS product CLIIAD
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CDUS41 KLWX 190531
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
131 AM EDT THU OCT 19 2006

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR OCTOBER 18 2006...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2006

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         78    122 PM  82    1963  67     11       79       
  MINIMUM         58   1159 PM  27    1982  41     17       47       
                                      1976                          
  AVERAGE         68                        54     14       63      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.09 1996   0.11  -0.11     0.00    
  MONTH TO DATE    3.17                      2.00   1.17     6.89    
  SINCE SEP 1     10.29                      5.82   4.47     7.04    
  SINCE JAN 1     37.28                     34.05   3.23    36.81    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                        11    -11        2       
  MONTH TO DATE  133                       152    -19       37       
  SINCE SEP 1    187                       212    -25       49       
  SINCE JUL 1    187                       217    -30       49       
                                                                     
 COOLING                                                             
  YESTERDAY        3                         0      3        0       
  MONTH TO DATE   14                        15     -1       35       
  SINCE SEP 1     94                       147    -53      262       
  SINCE JAN 1   1255                      1072    183     1373       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    NW (300)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    NE (30)       
  AVERAGE WIND SPEED     2.1                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           600 AM                                     
 LOWEST     54           200 PM                                     
 AVERAGE    77                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        83      1991                    
                                             1963                    
 MINIMUM TEMPERATURE (F)   41        25      1976                    
                                                                     
SUNRISE AND SUNSET                                                   
OCTOBER 19 2006.......SUNRISE   723 AM EDT   SUNSET   626 PM EDT   
OCTOBER 20 2006.......SUNRISE   724 AM EDT   SUNSET   624 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


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