239 
CDUS41 KLWX 180533
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
130 AM EDT FRI JUL 18 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JULY 17 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         85    553 PM 100    1997  88     -3       91       
  MINIMUM         65    558 AM  55    1976  64      1       61       
  AVERAGE         75                        76     -1       76      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.60 1988   0.11  -0.11     0.00    
  MONTH TO DATE    3.73                      2.01   1.72     1.65    
  SINCE JUN 1     12.06                      6.08   5.98     5.26    
  SINCE JAN 1     36.15                     22.89  13.26    18.63    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2002   0.0    0.0      0.0     
                                      2001                          
  MONTH TO DATE    0.0                       0.0    0.0      0.0     
  SINCE JUN 1      0.0                       0.0    0.0      0.0     
  SINCE JUL 1      0.0                       0.0    0.0      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         1     -1        0       
  SINCE JUN 1     31                        22      9        2       
  SINCE JUL 1      0                         1     -1        0       
                                                                     
 COOLING                                                             
  YESTERDAY       10                        11     -1       11       
  MONTH TO DATE  187                       180      7      188       
  SINCE JUN 1    352                       383    -31      425       
  SINCE JAN 1    382                       458    -76      553       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     W (290)      
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED     4.6                                         
                                                                     
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    87           600 AM                                     
 LOWEST     34           300 PM                                     
 AVERAGE    61                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88       100      1986                    
 MINIMUM TEMPERATURE (F)   64        51      1985                    
                                                                     
SUNRISE AND SUNSET                                                   
JULY 18 2003..........SUNRISE   559 AM EDT   SUNSET   833 PM EDT   
JULY 19 2003..........SUNRISE   559 AM EDT   SUNSET   832 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.