376  
CDUS41 KLWX 270530 CCA  
CLIIAD  
 
CLIMATE REPORT...CORRECTED  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1230 AM EST SAT FEB 27 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 26 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 50 2:52 PM 69 1977 49 1 53  
2002  
MINIMUM 33 6:14 AM 7 1970 28 5 44  
AVERAGE 42 39 3 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.15 0.93 1962 0.09 0.06 0.74  
MONTH TO DATE 3.15 2.55 0.60 3.16  
SINCE DEC 1 10.84 8.19 2.65 9.46  
SINCE JAN 1 5.03 5.23 -0.20 6.49  
 
SNOWFALL (IN)  
YESTERDAY T 2.7 1993 0.2 -0.2 0.0  
MONTH TO DATE 6.2 7.2 -1.0 T  
SINCE DEC 1 11.8 18.0 -6.2 2.9  
SINCE JUL 1 11.8 18.5 -6.7 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 23 26 -3 16  
MONTH TO DATE 780 755 25 586  
SINCE DEC 1 2486 2623 -137 2190  
SINCE JUL 1 3153 3539 -386 3053  
 
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 16 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
LIGHT SNOW  
SLEET  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 9:00 PM  
LOWEST 33 3:00 PM  
AVERAGE 63  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 50 74 1997  
MINIMUM TEMPERATURE (F) 28 8 1968  
 
SUNRISE AND SUNSET  
FEBRUARY 27 2021......SUNRISE 6:45 AM EST SUNSET 6:01 PM EST  
FEBRUARY 28 2021......SUNRISE 6:43 AM EST SUNSET 6:02 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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