415 
CDUS41 KLWX 210533
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
130 AM EDT MON APR 21 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 20 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    549 PM  88    1985  67      3       80       
  MINIMUM         37    546 AM  28    1974  41     -4       56       
  AVERAGE         54                        54      0       68      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.46 1964   0.11  -0.11     0.04    
  MONTH TO DATE    2.24                      2.09   0.15     0.70    
  SINCE MAR 1      5.95                      5.64   0.31     4.18    
  SINCE JAN 1     13.77                     11.46   2.31     5.87    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           T    1983   0.0    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       11                        11      0        0       
  MONTH TO DATE  271                       270      1      178       
  SINCE MAR 1    912                       940    -28      781       
  SINCE JUL 1   4956                      4673    283     3830       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        3       
  MONTH TO DATE    8                         1      7       55       
  SINCE MAR 1      8                         5      3       55       
  SINCE JAN 1      8                         5      3       55       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    SE (150)      
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION    SE (140)      
  AVERAGE WIND SPEED     3.4                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           300 AM                                     
 LOWEST     32           100 PM                                     
 AVERAGE    66                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   68        89      1985                    
 MINIMUM TEMPERATURE (F)   42        29      1983                    
                                                                     
SUNRISE AND SUNSET                                                   
APRIL 21 2003.........SUNRISE   625 AM EDT   SUNSET   752 PM EDT   
APRIL 22 2003.........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.