000 
CDUS41 KLWX 130534
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
132 AM EDT FRI AUG 13 2004

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR AUGUST 12 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         80    304 PM  98    2002  87     -7       89       
  MINIMUM         68    515 PM  52    1968  64      4       67       
  AVERAGE         74                        75     -1       78      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        1.09          1.21 1979   0.12   0.97     0.01    
  MONTH TO DATE    3.47                      1.42   2.05     0.50    
  SINCE JUN 1     10.93                      9.06   1.87    14.89    
  SINCE JAN 1     24.42                     25.87  -1.45    38.98    
                                                                     
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 JUN 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                         0      0        0       
  MONTH TO DATE    2                         0      2        0       
  SINCE JUN 1     14                        22     -8       31       
  SINCE JUL 1      2                         1      1        0       
                                                                     
 COOLING                                                             
  YESTERDAY        9                        10     -1       13       
  MONTH TO DATE  103                       131    -28      137       
  SINCE JUN 1    644                       679    -35      630       
  SINCE JAN 1    884                       754    130      660       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    SW (220)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     3.1                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  40 PERCENT                                      
  AVERAGE SKY COVER 1.0                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  THUNDERSTORM                                                       
  HEAVY RAIN                                                         
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    97           900 PM                                     
 LOWEST     67          1200 PM                                     
 AVERAGE    82                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   87        98      2002                    
 MINIMUM TEMPERATURE (F)   63        50      1964                    
                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 13 2004........SUNRISE   622 AM EDT   SUNSET   807 PM EDT   
AUGUST 14 2004........SUNRISE   623 AM EDT   SUNSET   805 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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