000 
CDUS41 KLWX 160532
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
130 AM EDT THU SEP 16 2004

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 15 2004...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2004

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         68    505 PM  95    1998  79    -11       82       
  MINIMUM         65    816 AM  38    1985  56      9       64       
  AVERAGE         67                        68     -1       73      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.29          1.06 1981   0.13   0.16     0.02    
  MONTH TO DATE    1.80                      1.95  -0.15     2.59    
  SINCE SEP 1      1.80                      1.95  -0.15     2.59    
  SINCE JAN 1     26.54                     30.18  -3.64    46.64    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2002   0.0    0.0      0.0     
                                      2001                          
  MONTH TO DATE    0.0                       0.0    0.0      0.0     
  SINCE SEP 1      0.0                       0.0    0.0      0.0     
  SINCE JUL 1      0.0                       0.0    0.0      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         2     -2        0       
  MONTH TO DATE    0                        10    -10        8       
  SINCE SEP 1      0                        10    -10        8       
  SINCE JUL 1      2                        15    -13        8       
                                                                     
 COOLING                                                             
  YESTERDAY        2                         4     -2        8       
  MONTH TO DATE   93                        86      7       68       
  SINCE SEP 1     93                        86      7       68       
  SINCE JAN 1   1152                      1011    141      947       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     N (10)       
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     N (360)      
  AVERAGE WIND SPEED     5.8                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1200 AM                                     
 LOWEST     81          1100 AM                                     
 AVERAGE    87                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79        97      1991                    
 MINIMUM TEMPERATURE (F)   56        37      1984                    
                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 16 2004.....SUNRISE   652 AM EDT   SUNSET   716 PM EDT   
SEPTEMBER 17 2004.....SUNRISE   653 AM EDT   SUNSET   714 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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