AFOS product CLIIAD
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CDUS41 KLWX 200543
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
142 AM EDT THU MAY 20 2004

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 19 2004...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2004

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         77    414 PM  92    1997  75      2       71       
  MINIMUM         64    400 AM  36    2002  51     13       43       
  AVERAGE         71                        63      8       57      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.02          1.18 1988   0.14  -0.12     0.00    
  MONTH TO DATE    2.00                      2.54  -0.54     5.41    
  SINCE MAR 1      9.10                      9.31  -0.21    11.83    
  SINCE JAN 1     12.44                     15.13  -2.69    20.79    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2002   0.0    0.0      0.0     
                                      2001                          
  MONTH TO DATE    0.0                       0.0    0.0      0.0     
  SINCE MAR 1      T                         3.8   -3.8      1.9     
  SINCE JUL 1     17.4                      21.2   -3.8     50.1     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         4     -4        8       
  MONTH TO DATE   43                       107    -64      116       
  SINCE MAR 1    953                      1139   -186     1104       
  SINCE JUL 1   4678                      4872   -194     5148       
                                                                     
 COOLING                                                             
  YESTERDAY        6                         2      4        0       
  MONTH TO DATE  113                        24     89       20       
  SINCE MAR 1    150                        39    111       28       
  SINCE JAN 1    150                        39    111       28       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     E (90)       
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     E (90)       
  AVERAGE WIND SPEED     3.5                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          M200 AM                                     
 LOWEST     64          M200 PM                                     
 AVERAGE    79                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   76        93      1996                    
 MINIMUM TEMPERATURE (F)   51        36      2002                    
                                                                     
SUNRISE AND SUNSET                                                   
MAY 20 2004...........SUNRISE   553 AM EDT   SUNSET   820 PM EDT   
MAY 21 2004...........SUNRISE   552 AM EDT   SUNSET   821 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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