534 
CDUS41 KLWX 170531
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
130 AM EDT SAT APR 17 2004

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 16 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         68    459 PM  91    2002  66      2       85       
  MINIMUM         30    520 AM  28    1981  40    -10       57       
  AVERAGE         49                        53     -4       71      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.43 1993   0.10  -0.10     0.00    
  MONTH TO DATE    3.52                      1.66   1.86     1.60    
  SINCE MAR 1      5.57                      5.21   0.36     5.31    
  SINCE JAN 1      8.91                     11.03  -2.12    14.27    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           T    1988   0.0    0.0      0.0     
  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       16                        12      4        0       
  MONTH TO DATE  285                       225     60      213       
  SINCE MAR 1    859                       895    -36      854       
  SINCE JUL 1   4584                      4628    -44     4898       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        6       
  MONTH TO DATE    0                         0      0        8       
  SINCE MAR 1      0                         4     -4        8       
  SINCE JAN 1      0                         4     -4        8       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     W (290)      
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     W (250)      
  AVERAGE WIND SPEED     3.0                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    85          M500 AM                                     
 LOWEST     21          M500 PM                                     
 AVERAGE    53                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        93      2002                    
 MINIMUM TEMPERATURE (F)   41        27      1983                    
                                                                     
SUNRISE AND SUNSET                                                   
APRIL 17 2004.........SUNRISE   630 AM EDT   SUNSET   749 PM EDT   
APRIL 18 2004.........SUNRISE   628 AM EDT   SUNSET   750 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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