494 
CDUS41 KLWX 120531
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1229 AM EST SUN JAN 12 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 11 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         35    402 PM  71    1975  41     -6       49       
  MINIMUM         25    819 AM  -5    1988  22      3       34       
  AVERAGE         30                        32     -2       42      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.90 1991   0.10  -0.10     0.20    
  MONTH TO DATE    2.47                      1.10   1.37     0.67    
  SINCE DEC 1      6.08                      4.17   1.91     2.23    
  SINCE JAN 1      2.47                      1.10   1.37     0.67    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           2.2  1991   0.2   -0.2      0.0     
  MONTH TO DATE    3.8                       2.2    1.6       T      
  SINCE DEC 1     12.0                       4.4    7.6       T      
  SINCE JUL 1     12.0                       5.3    6.7       T      
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       35                        33      2       23       
  MONTH TO DATE  314                       360    -46      352       
  SINCE DEC 1   1286                      1244     42     1078       
  SINCE JUL 1   2268                      2221     47     1881       
                                                                     
 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    30   HIGHEST WIND DIRECTION     W (290)      
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED    11.1                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    63          1200 AM                                     
 LOWEST     35           300 PM                                     
 AVERAGE    49                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   41        63      1995                    
 MINIMUM TEMPERATURE (F)   22        -4      1977                    
                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 12 2003.......SUNRISE   728 AM EST   SUNSET   508 PM EST   
JANUARY 13 2003.......SUNRISE   728 AM EST   SUNSET   509 PM EST   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.