AFOS product CLIIAD
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CDUS41 KLWX 210541
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
138 AM EDT SAT MAY 21 2005

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 20 2005...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2005

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         58   1208 AM  93    1996  76    -18       72       
  MINIMUM         48   1159 PM  36    2002  51     -3       65       
  AVERAGE         53                        63    -10       69      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        1.86R         1.44 1971   0.14   1.72     0.01    
  MONTH TO DATE    3.59                      2.68   0.91     2.01    
  SINCE MAR 1     11.86                      9.45   2.41     9.10    
  SINCE JAN 1     16.41                     15.27   1.14    12.44    
                                                                     
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      1.2                       3.8   -2.6       T      
  SINCE JUL 1     17.3                      21.2   -3.9     17.4     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       12                         4      8        0       
  MONTH TO DATE  138                       111     27       43       
  SINCE MAR 1   1177                      1143     34      953       
  SINCE JUL 1   4513                      4903   -390     4680       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         2     -2        4       
  MONTH TO DATE   15                        26    -11      117       
  SINCE MAR 1     26                        41    -15      154       
  SINCE JAN 1     26                        41    -15      154       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     E (70)       
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     E (70)       
  AVERAGE WIND SPEED    13.4                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HEAVY RAIN                                                         
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96          1100 AM                                     
 LOWEST     83           200 PM                                     
 AVERAGE    90                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   76        92      1996                    
 MINIMUM TEMPERATURE (F)   52        33      1992                    
                                                                     
SUNRISE AND SUNSET                                                   
MAY 21 2005...........SUNRISE   552 AM EDT   SUNSET   821 PM EDT   
MAY 22 2005...........SUNRISE   552 AM EDT   SUNSET   822 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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