284 
CDUS41 KLWX 130533
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
129 AM EDT SUN APR 13 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 12 2003...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2003

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         70    444 PM  87    1977  65      5       63       
  MINIMUM         47   1248 AM  23    1982  39      8       48       
  AVERAGE         59                        52      7       56      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.06 1966   0.10  -0.10     0.01    
  MONTH TO DATE    1.60                      1.26   0.34     0.49    
  SINCE MAR 1      5.31                      4.81   0.50     3.97    
  SINCE JAN 1     13.13                     10.63   2.50     5.66    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           1.0  1973  MM      0.0      0.0     
  MONTH TO DATE    T                         0.4   -0.4      0.0     
  SINCE MAR 1      1.9                       3.8   -1.9      0.0     
  SINCE JUL 1     50.1                      21.2   28.9      2.6     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        6                        13     -7        9       
  MONTH TO DATE  189                       176     13      178       
  SINCE MAR 1    830                       846    -16      781       
  SINCE JUL 1   4874                      4579    295     3830       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        2       
  SINCE MAR 1      0                         4     -4        2       
  SINCE JAN 1      0                         4     -4        2       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NW (330)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED    11.8                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86          1200 AM                                     
 LOWEST     20           500 PM                                     
 AVERAGE    53                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   65        87      1977                    
 MINIMUM TEMPERATURE (F)   39        24      1990                    
                                                                     
SUNRISE AND SUNSET                                                   
APRIL 13 2003.........SUNRISE   637 AM EDT   SUNSET   745 PM EDT   
APRIL 14 2003.........SUNRISE   635 AM EDT   SUNSET   746 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.