658  
CDUS41 KLWX 232122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
422 PM EST TUE FEB 23 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 23 2021
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1960 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 57 2:46 PM 77 2017 48 9 58  
MINIMUM 27 5:36 AM 5 1963 27 0 19  
AVERAGE 42 38 4 39  
 
PRECIPITATION (IN)  
TODAY T 1.34 1987 0.10 -0.10 0.00  
MONTH TO DATE 3.00 2.26 0.74 2.15  
SINCE DEC 1 10.69 7.90 2.79 8.45  
SINCE JAN 1 4.88 4.94 -0.06 5.48  
 
SNOWFALL (IN)  
TODAY 0.0 8.9 1987 0.2 -0.2 0.0  
MONTH TO DATE 6.2 6.6 -0.4 T  
SINCE DEC 1 11.8 17.4 -5.6 2.9  
SINCE JUL 1 11.8 17.9 -6.1 2.9  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
TODAY 23 27 -4 26  
MONTH TO DATE 718 675 43 532  
SINCE DEC 1 2424 2543 -119 2136  
SINCE JUL 1 3091 3459 -368 2999  
 
COOLING  
TODAY 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 29 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 9.0  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1:00 AM  
LOWEST 43 4:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 79 1985  
MINIMUM TEMPERATURE (F) 28 -4 2015  
 
SUNRISE AND SUNSET  
FEBRUARY 23 2021......SUNRISE 6:50 AM EST SUNSET 5:56 PM EST  
FEBRUARY 24 2021......SUNRISE 6:49 AM EST SUNSET 5:57 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page