151  
CDUS41 KLWX 020521  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1221 AM EST TUE MAR 02 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 1 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 51 11:18 AM 77 1972 50 1 52  
MINIMUM 38 11:59 PM 11 1980 29 9 21  
AVERAGE 45 39 6 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.18 1.06 1997 0.09 0.09 0.00  
MONTH TO DATE 0.18 0.09 0.09 0.00  
SINCE MAR 1 0.18 0.09 0.09 0.00  
SINCE JAN 1 6.34 5.51 0.83 6.57  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.2 1969 0.2 -0.2 0.0  
MONTH TO DATE 0.0 0.2 -0.2 0.0  
SINCE MAR 1 0.0 0.2 -0.2 0.0  
SINCE JUL 1 12.0 19.1 -7.1 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 26 -6 28  
MONTH TO DATE 20 26 -6 28  
SINCE MAR 1 20 26 -6 28  
SINCE JUL 1 3213 3616 -403 3172  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 12.3  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 5:00 AM  
LOWEST 40 7:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 77 1972  
MINIMUM TEMPERATURE (F) 29 12 1967  
1980  
 
SUNRISE AND SUNSET  
MARCH 2 2021.........SUNRISE 6:40 AM EST SUNSET 6:04 PM EST  
MARCH 3 2021.........SUNRISE 6:39 AM EST SUNSET 6:05 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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