AFOS product CLIIAD
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download Bulk Download
000 
CDUS41 KLWX 211348
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON                        
816 AM EST THU FEB 21 2002

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR FEBRUARY 20 2002...

CLIMATE NORMAL PERIOD 1971 TO 2000 SNOW/HEATING DEGREE DAYS 1961-1990
CLIMATE RECORD PERIOD 1962 TO 2002

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         65    221 PM  70    1971  47     18       65       
  MINIMUM         44   1208 AM  -2    1979  25     19       36       
  AVERAGE         55                        36     19       51      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.04          0.57 1981   0.10  -0.06     0.00    
  MONTH TO DATE    0.34                      1.95  -1.61     1.33    
  SINCE DEC 1      3.12                      8.07  -4.95     5.93    
  SINCE JAN 1      1.56                      5.00  -3.44     3.87    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM             0.7  1969  MM     MM        0.0     
  MONTH TO DATE    T                        MM     MM        1.0     
  SINCE DEC 1      2.6                      MM     MM        9.2     
  SINCE JUL 1      2.6                      MM     MM        9.2     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       10                        30    -20       14       
  MONTH TO DATE  534                       649   -115      517       
  SINCE DEC 1   2056                      2633   -577     2676       
  SINCE JUL 1   2859                      3584   -725     3715       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED    11.6                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    83          1100 PM                                     
 LOWEST     30           100 AM                                     
 AVERAGE    57                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   47        70      1997                    
 MINIMUM TEMPERATURE (F)   25         7      1972                    
                                                                     
SUNRISE AND SUNSET                                                   
FEBRUARY 21 2002......SUNRISE   654 AM EST   SUNSET   554 PM EST   
FEBRUARY 22 2002......SUNRISE   652 AM EST   SUNSET   555 PM EST   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.