000 
CDUS41 KLWX 100530
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
129 AM EDT TUE AUG 10 2004

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR AUGUST 9 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         84    352 PM  97    2001  87     -3       81       
                                      1980                          
  MINIMUM         55    537 AM  47    1989  64     -9       69       
  AVERAGE         70                        75     -5       75      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.28 1969   0.12  -0.12     0.02    
  MONTH TO DATE    2.15                      1.06   1.09     0.48    
  SINCE JUN 1      9.61                      8.70   0.91    14.87    
  SINCE JAN 1     23.10                     25.51  -2.41    38.96    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0     
  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        5                        11     -6       10       
  MONTH TO DATE   70                        99    -29      100       
  SINCE JUN 1    611                       647    -36      593       
  SINCE JAN 1    851                       722    129      623       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     W (250)      
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION    SW (240)      
  AVERAGE WIND SPEED     3.5                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           200 AM                                     
 LOWEST     37           100 PM                                     
 AVERAGE    65                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   87        96      2001                    
 MINIMUM TEMPERATURE (F)   64        52      1972                    
                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 10 2004........SUNRISE   619 AM EDT   SUNSET   810 PM EDT   
AUGUST 11 2004........SUNRISE   620 AM EDT   SUNSET   809 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


$$