000 
CDUS41 KLWX 200533
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
133 AM EDT THU APR 20 2006

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 19 2006...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2006

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         75    520 PM  91    2002  67      8       85       
  MINIMUM         44    438 AM  27    2001  41      3       46       
                                      1990                          
  AVERAGE         60                        54      6       66      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.75 1998   0.11  -0.11      T      
  MONTH TO DATE    1.61                      1.98  -0.37     2.61    
  SINCE MAR 1      1.68                      5.53  -3.85     6.54    
  SINCE JAN 1      6.46                     11.35  -4.89    11.09    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2002   0.0    0.0      0.0     
                                      2001                          
  MONTH TO DATE    0.0                       0.4   -0.4      0.0     
  SINCE MAR 1      T                         3.8   -3.8      1.2     
  SINCE JUL 1     14.1                      21.2   -7.1     17.3     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        5                        11     -6        0       
  MONTH TO DATE  149                       259   -110      197       
  SINCE MAR 1    738                       929   -191      941       
  SINCE JUL 1   3966                      4689   -723     4277       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        1       
  MONTH TO DATE    9                         0      9        8       
  SINCE MAR 1     12                         4      8        8       
  SINCE JAN 1     12                         4      8        8       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     N (360)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    NW (310)      
  AVERAGE WIND SPEED     5.9                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    83           200 AM                                     
 LOWEST     23           200 PM                                     
 AVERAGE    53                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        88      1985                    
                                             1976                    
 MINIMUM TEMPERATURE (F)   41        28      1974                    
                                                                     
SUNRISE AND SUNSET                                                   
APRIL 20 2006.........SUNRISE   626 AM EDT   SUNSET   752 PM EDT   
APRIL 21 2006.........SUNRISE   625 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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