604 
CDUS41 KLWX 200532
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
130 AM EDT TUE APR 20 2004

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 19 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         90    212 PM  91    2002  67     23       61       
  MINIMUM         61    543 AM  27    2001  41     20       42       
                                      1990                          
  AVERAGE         76                        54     22       52      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.75 1998   0.11  -0.11     0.20    
  MONTH TO DATE    3.52                      1.98   1.54     2.24    
  SINCE MAR 1      5.57                      5.53   0.04     5.95    
  SINCE JAN 1      8.91                     11.35  -2.44    14.91    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2002   0.0    0.0      0.0     
                                      2001                          
  MONTH TO DATE    0.0                       0.4   -0.4       T      
  SINCE MAR 1      T                         3.8   -3.8      1.9     
  SINCE JUL 1     17.4                      21.2   -3.8     50.1     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                        11    -11       13       
  MONTH TO DATE  288                       259     29      260       
  SINCE MAR 1    862                       929    -67      901       
  SINCE JUL 1   4587                      4662    -75     4945       
                                                                     
 COOLING                                                             
  YESTERDAY       11                         0     11        0       
  MONTH TO DATE   16                         0     16        8       
  SINCE MAR 1     16                         4     12        8       
  SINCE JAN 1     16                         4     12        8       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    SW (230)      
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     9.9                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    67          M400 AM                                     
 LOWEST     19          M200 PM                                     
 AVERAGE    43                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        88      1985                    
 MINIMUM TEMPERATURE (F)   41        28      1974                    
                                                                     
SUNRISE AND SUNSET                                                   
APRIL 20 2004.........SUNRISE   626 AM EDT   SUNSET   752 PM EDT   
APRIL 21 2004.........SUNRISE   624 AM EDT   SUNSET   753 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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