AFOS product CLIIAD
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CDUS41 KLWX 200538
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
136 AM EDT SUN JUL 20 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JULY 19 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         83    330 PM  98    1977  88     -5       88       
  MINIMUM         63   1159 PM  53    1976  64     -1       70       
  AVERAGE         73                        76     -3       79      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.52 1968   0.11  -0.11      T      
  MONTH TO DATE    3.73                      2.23   1.50     1.65    
  SINCE JUN 1     12.06                      6.30   5.76     5.26    
  SINCE JAN 1     36.15                     23.11  13.04    18.63    
                                                                     
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 JUN 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                         0      0        0       
  MONTH TO DATE    0                         1     -1        0       
  SINCE JUN 1     31                        22      9        2       
  SINCE JUL 1      0                         1     -1        0       
                                                                     
 COOLING                                                             
  YESTERDAY        8                        12     -4       14       
  MONTH TO DATE  206                       203      3      217       
  SINCE JUN 1    371                       406    -35      454       
  SINCE JAN 1    401                       481    -80      582       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     N (360)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (10)       
  AVERAGE WIND SPEED     4.7                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    97           400 AM                                     
 LOWEST     47           300 PM                                     
 AVERAGE    72                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88       101      1980                    
 MINIMUM TEMPERATURE (F)   64        55      1974                    
                                                                     
SUNRISE AND SUNSET                                                   
JULY 20 2003..........SUNRISE   600 AM EDT   SUNSET   832 PM EDT   
JULY 21 2003..........SUNRISE   601 AM EDT   SUNSET   831 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.