530 
CDUS41 KLWX 300531
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
129 AM EDT WED JUL 30 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JULY 29 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         81    403 PM  97    1993  88     -7       94       
  MINIMUM         65   1159 PM  53    1978  64      1       74       
  AVERAGE         73                        76     -3       84      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             0.92 2001   0.11  -0.11     0.00    
  MONTH TO DATE    6.07                      3.33   2.74     2.65    
  SINCE JUN 1     14.40                      7.40   7.00     6.26    
  SINCE JAN 1     38.49                     24.21  14.28    19.63    
                                                                     
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        8                        12     -4       19       
  MONTH TO DATE  312                       323    -11      353       
  SINCE JUN 1    477                       526    -49      590       
  SINCE JAN 1    507                       601    -94      718       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    NE (60)       
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     N (10)       
  AVERAGE WIND SPEED     3.6                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    97          1200 AM                                     
 LOWEST     52          1200 PM                                     
 AVERAGE    75                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88        98      1988                    
 MINIMUM TEMPERATURE (F)   64        51      1981                    
                                                                     
SUNRISE AND SUNSET                                                   
JULY 30 2003..........SUNRISE   609 AM EDT   SUNSET   823 PM EDT   
JULY 31 2003..........SUNRISE   609 AM EDT   SUNSET   822 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.