AFOS product CLIIAD
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download
388 
CDUS41 KLWX 210537
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
134 AM EDT WED APR 21 2004

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 20 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         80    500 PM  88    1985  67     13       70       
  MINIMUM         61   1159 PM  28    1974  41     20       37       
  AVERAGE         71                        54     17       54      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.08          0.46 1964   0.11  -0.03     0.00    
  MONTH TO DATE    3.60                      2.09   1.51     2.24    
  SINCE MAR 1      5.65                      5.64   0.01     5.95    
  SINCE JAN 1      8.99                     11.46  -2.47    14.91    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           T    1983   0.0    0.0      0.0     
  MONTH TO DATE    0.0                       0.4   -0.4       T      
  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                        11    -11       11       
  MONTH TO DATE  288                       270     18      271       
  SINCE MAR 1    862                       940    -78      912       
  SINCE JUL 1   4587                      4673    -86     4956       
                                                                     
 COOLING                                                             
  YESTERDAY        6                         1      5        0       
  MONTH TO DATE   22                         1     21        8       
  SINCE MAR 1     22                         5     17        8       
  SINCE JAN 1     22                         5     17        8       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED     6.8                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HEAVY RAIN                                                         
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    90          1100 PM                                     
 LOWEST     36          M500 PM                                     
 AVERAGE    63                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   68        89      1985                    
 MINIMUM TEMPERATURE (F)   42        29      1983                    
                                                                     
SUNRISE AND SUNSET                                                   
APRIL 21 2004.........SUNRISE   624 AM EDT   SUNSET   753 PM EDT   
APRIL 22 2004.........SUNRISE   623 AM EDT   SUNSET   754 PM EDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


$$