AFOS product CLIIAD
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CDUS41 KLWX 180532
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
131 AM EDT THU MAY 18 2006

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 17 2006...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2006

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         71    252 PM  89    1986  75     -4       67       
  MINIMUM         47    516 AM  30    1984  50     -3       50       
  AVERAGE         59                        63     -4       59      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.01          1.22 1970   0.14  -0.13     0.00    
  MONTH TO DATE    1.70                      2.26  -0.56     1.38    
  SINCE MAR 1      6.63                      9.03  -2.40     9.65    
  SINCE JAN 1     11.41                     14.85  -3.44    14.20    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM             0.0  2002   0.0   MM        0.0     
                                      2001                          
  MONTH TO DATE    0.0                       0.0    0.0      0.0     
  SINCE MAR 1      T                         3.8   -3.8      1.2     
  SINCE JUL 1     14.1                      21.2   -7.1     17.3     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        6                         4      2        6       
  MONTH TO DATE   87                        99    -12      117       
  SINCE MAR 1    908                      1131   -223     1156       
  SINCE JUL 1   4136                      4891   -755     4492       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         2     -2        0       
  MONTH TO DATE    8                        20    -12       15       
  SINCE MAR 1     20                        35    -15       26       
  SINCE JAN 1     20                        35    -15       26       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NW (320)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SW (240)      
  AVERAGE WIND SPEED     5.5                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1200 AM                                     
 LOWEST     44          1200 PM                                     
 AVERAGE    69                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   75        91      1987                    
 MINIMUM TEMPERATURE (F)   51        33      1973                    
                                                                     
SUNRISE AND SUNSET                                                   
MAY 18 2006...........SUNRISE   555 AM EDT   SUNSET   818 PM EDT   
MAY 19 2006...........SUNRISE   554 AM EDT   SUNSET   819 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


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