AFOS product CLIIAD
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CDUS41 KLWX 180546
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
143 AM EDT MON SEP 18 2006

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 17 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         81    357 PM  97    1991  79      2       90       
  MINIMUM         57    520 AM  35    1986  56      1       66       
  AVERAGE         69                        67      2       78      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.71 2004   0.13  -0.13     0.00    
  MONTH TO DATE    6.42                      2.21   4.21     0.01    
  SINCE SEP 1      6.42                      2.21   4.21     0.01    
  SINCE JAN 1     33.41                     30.44   2.97    29.78    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         2     -2        0       
  MONTH TO DATE    5                        14     -9        0       
  SINCE SEP 1      5                        14     -9        0       
  SINCE JUL 1      5                        19    -14        0       
                                                                     
 COOLING                                                             
  YESTERDAY        4                         4      0       13       
  MONTH TO DATE   52                        94    -42      145       
  SINCE SEP 1     52                        94    -42      145       
  SINCE JAN 1   1213                      1019    194     1256       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED     2.4                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           300 AM                                     
 LOWEST     51           200 PM                                     
 AVERAGE    76                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   78        91      1978                    
 MINIMUM TEMPERATURE (F)   55        37      1990                    
                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 18 2006.....SUNRISE   654 AM EDT   SUNSET   713 PM EDT   
SEPTEMBER 19 2006.....SUNRISE   655 AM EDT   SUNSET   712 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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