AFOS product CLIIAD
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CDUS41 KLWX 180539
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1240 AM EST SAT JAN 18 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 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         30    141 PM  70    1990  41    -11       56       
  MINIMUM         12    404 AM  -7    1982  22    -10       34       
  AVERAGE         21                        31    -10       45      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.14 1994   0.10  -0.10     0.00    
  MONTH TO DATE    2.51                      1.70   0.81     0.67    
  SINCE DEC 1      6.12                      4.77   1.35     2.23    
  SINCE JAN 1      2.51                      1.70   0.81     0.67    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           4.2  1965   0.3   -0.3      0.0     
  MONTH TO DATE    4.5                       3.9    0.6       T      
  SINCE DEC 1     12.7                       6.1    6.6       T      
  SINCE JUL 1     12.7                       7.0    5.7       T      
  SNOW DEPTH       1                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       44                        34     10       20       
  MONTH TO DATE  555                       559     -4      504       
  SINCE DEC 1   1527                      1443     84     1230       
  SINCE JUL 1   2509                      2420     89     2033       
                                                                     
 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    20   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    NW (300)      
  AVERAGE WIND SPEED    10.5                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT SNOW                                                         
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           300 AM                                     
 LOWEST     46           300 PM                                     
 AVERAGE    73                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   41        70      1990                    
 MINIMUM TEMPERATURE (F)   21        -1      1994                    
                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 18 2003.......SUNRISE   726 AM EST   SUNSET   515 PM EST   
JANUARY 19 2003.......SUNRISE   725 AM EST   SUNSET   516 PM EST   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.