000
CDUS41 KLWX 210534
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1232 AM EST MON MAR 21 2005

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MARCH 20 2005...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2005

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         58    214 PM  77    1976  56      2       62       
  MINIMUM         44   1159 PM  18    1981  33     11       26       
  AVERAGE         51                        45      6       44      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.10          1.81 2003   0.12  -0.02      T      
  MONTH TO DATE    0.64                      2.31  -1.67     1.77    
  SINCE MAR 1      0.64                      2.31  -1.67     1.77    
  SINCE JAN 1      5.19                      8.13  -2.94     5.11    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           2.2  1990   0.1   -0.1      0.0     
  MONTH TO DATE    1.2                       2.4   -1.2       T      
  SINCE MAR 1      1.2                       2.4   -1.2       T      
  SINCE JUL 1     17.3                      19.8   -2.5     17.4     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       14                        20     -6       21       
  MONTH TO DATE  536                       468     68      394       
  SINCE MAR 1    536                       468     68      394       
  SINCE JUL 1   3872                      4228   -356     4121       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE MAR 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NW (320)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    NW (310)      
  AVERAGE WIND SPEED     7.1                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  THUNDERSTORM                                                       
  HEAVY RAIN                                                         
  LIGHT RAIN                                                         
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           700 AM                                     
 LOWEST     46           500 PM                                     
 AVERAGE    70                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   57        76      1978                    
 MINIMUM TEMPERATURE (F)   33        14      1965                    
                                                                     
SUNRISE AND SUNSET                                                   
MARCH 21 2005.........SUNRISE   611 AM EST   SUNSET   623 PM EST   
MARCH 22 2005.........SUNRISE   610 AM EST   SUNSET   624 PM EST   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


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