939  
CDUS41 KLWX 282123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
523 PM EDT SUN MAR 28 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 28 2021
 
 
VALID TODAY AS OF 0500 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 70 3:59 PM 86 1989 60 10 58  
MINIMUM 55 6:59 AM 18 2001 37 18 51  
AVERAGE 63 48 15 55  
 
PRECIPITATION (IN)  
TODAY 0.29 1.40 1984 0.12 0.17 0.46  
MONTH TO DATE 1.48 3.00 -1.52 1.84  
SINCE MAR 1 1.48 3.00 -1.52 1.84  
SINCE JAN 1 7.64 8.42 -0.78 8.41  
 
SNOWFALL (IN)  
TODAY MM 0.3 1996 0.0 MM 0.0  
MONTH TO DATE T 2.7 -2.7 T  
SINCE MAR 1 T 2.7 -2.7 T  
SINCE JUL 1 12.0 21.6 -9.6 2.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 2 17 -15 10  
MONTH TO DATE 472 600 -128 421  
SINCE MAR 1 472 600 -128 421  
SINCE JUL 1 3665 4190 -525 3565  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 4 0 4 3  
SINCE MAR 1 4 0 4 3  
SINCE JAN 1 4 0 4 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 9.5  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 10:00 AM  
LOWEST 71 4:00 PM  
AVERAGE 84  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 86 1998  
MINIMUM TEMPERATURE (F) 37 20 1982  
 
SUNRISE AND SUNSET  
MARCH 28 2021.........SUNRISE 7:00 AM EDT SUNSET 7:30 PM EDT  
MARCH 29 2021.........SUNRISE 6:59 AM EDT SUNSET 7:31 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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