408 
CDUS41 KLWX 210535
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1231 AM EST TUE JAN 21 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 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         41   1014 AM  57    1991  41      0       38       
  MINIMUM         24   1159 PM  -7    1985  21      3       26       
  AVERAGE         33                        31      2       32      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.01 1979   0.10  -0.10     0.00    
  MONTH TO DATE    2.51                      2.00   0.51     0.94    
  SINCE DEC 1      6.12                      5.07   1.05     2.50    
  SINCE JAN 1      2.51                      2.00   0.51     0.94    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           4.5  1975   0.3   -0.3      0.0     
  MONTH TO DATE    4.5                       4.8   -0.3      2.6     
  SINCE DEC 1     12.7                       7.0    5.7      2.6     
  SINCE JUL 1     12.7                       7.9    4.8      2.6     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       32                        34     -2       33       
  MONTH TO DATE  680                       661     19      603       
  SINCE DEC 1   1652                      1545    107     1329       
  SINCE JUL 1   2634                      2522    112     2132       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    NW (310)      
  AVERAGE WIND SPEED    11.5                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    64          1100 AM                                     
 LOWEST     37          1000 PM                                     
 AVERAGE    51                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   41        59      1990                    
 MINIMUM TEMPERATURE (F)   21       -16      1984                    
                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 21 2003.......SUNRISE   724 AM EST   SUNSET   518 PM EST   
JANUARY 22 2003.......SUNRISE   724 AM EST   SUNSET   519 PM EST   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.