504 
CDUS41 KLWX 130532
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
130 AM EDT SUN JUL 13 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JULY 12 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         84    501 PM  97    1986  87     -3       84       
  MINIMUM         60    511 AM  47    2002  64     -4       47       
  AVERAGE         72                        76     -4       66      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.26          2.61 1990   0.12   0.14     0.00    
  MONTH TO DATE    3.73                      1.44   2.29     0.07    
  SINCE JUN 1     12.06                      5.51   6.55     3.68    
  SINCE JAN 1     36.15                     22.32  13.83    17.05    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0     
  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        7                        11     -4        1       
  MONTH TO DATE  139                       125     14      141       
  SINCE JUN 1    304                       328    -24      378       
  SINCE JAN 1    334                       403    -69      506       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (340)      
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     N (340)      
  AVERAGE WIND SPEED     6.9                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  THUNDERSTORM                                                       
  HEAVY RAIN                                                         
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    97           500 AM                                     
 LOWEST     48           200 PM                                     
 AVERAGE    73                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   87        97      1986                    
 MINIMUM TEMPERATURE (F)   64        52      1978                    
                                                                     
SUNRISE AND SUNSET                                                   
JULY 13 2003..........SUNRISE   555 AM EDT   SUNSET   836 PM EDT   
JULY 14 2003..........SUNRISE   556 AM EDT   SUNSET   835 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.