773  
CDUS41 KLWX 260524  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1224 AM EST FRI FEB 26 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 25 2021
 
 
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)  
YESTERDAY  
MAXIMUM 56 1:17 AM 79 2000 49 7 52  
MINIMUM 32 10:37 PM 6 2015 28 4 45  
AVERAGE 44 38 6 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.20 1979 0.10 -0.10 0.27  
MONTH TO DATE 3.00 2.46 0.54 2.42  
SINCE DEC 1 10.69 8.10 2.59 8.72  
SINCE JAN 1 4.88 5.14 -0.26 5.75  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.5 2007 0.2 -0.2 0.0  
MONTH TO DATE 6.2 7.0 -0.8 T  
SINCE DEC 1 11.8 17.8 -6.0 2.9  
SINCE JUL 1 11.8 18.3 -6.5 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 27 -6 16  
MONTH TO DATE 757 729 28 570  
SINCE DEC 1 2463 2597 -134 2174  
SINCE JUL 1 3130 3513 -383 3037  
 
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 29 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 10.2  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 11:00 PM  
LOWEST 23 4:00 PM  
AVERAGE 46  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 69 1977  
2002  
MINIMUM TEMPERATURE (F) 28 7 1970  
 
SUNRISE AND SUNSET  
FEBRUARY 26 2021......SUNRISE 6:46 AM EST SUNSET 6:00 PM EST  
FEBRUARY 27 2021......SUNRISE 6:45 AM EST SUNSET 6:01 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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