AFOS product CLIIAD
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CDUS41 KLWX 220532
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON                        
130 AM EDT SUN SEP 22 2002

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 21 2002...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2002

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         88   1141 AM  92    1998  77     11       80       
  MINIMUM         68    621 AM  42    1991  54     14       59       
  AVERAGE         78                        66     12       70      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.59 1979   0.13  -0.13     0.01    
  MONTH TO DATE    0.50                      2.73  -2.23     1.01    
  SINCE SEP 1      0.50                      2.73  -2.23     1.01    
  SINCE JAN 1     23.05                     30.96  -7.91    30.99    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2001   0.0    0.0      0.0     
  MONTH TO DATE    0.0                       0.0    0.0      0.0     
  SINCE SEP 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                         3     -3        0       
  MONTH TO DATE    4                        24    -20       20       
  SINCE SEP 1      4                        24    -20       20       
  SINCE JUL 1      7                        29    -22       25       
                                                                     
 COOLING                                                             
  YESTERDAY       13                         3     10        5       
  MONTH TO DATE  129                       109     20       78       
  SINCE SEP 1    129                       109     20       78       
  SINCE JAN 1   1292                      1034    258      992       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     8.0                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  THUNDERSTORM                                                       
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    90           300 AM                                     
 LOWEST     50           100 PM                                     
 AVERAGE    70                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   77        94      1980                    
 MINIMUM TEMPERATURE (F)   53        38      1997                    
                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 22 2002.....SUNRISE   657 AM EDT   SUNSET   707 PM EDT   
SEPTEMBER 23 2002.....SUNRISE   658 AM EDT   SUNSET   705 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.