106  
CDUS41 KLWX 270534  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
134 AM EDT SAT MAR 27 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 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 81R 1:45 PM 78 2004 59 22 61  
MINIMUM 57 11:59 PM 17 1983 36 21 39  
AVERAGE 69 48 21 50  
 
PRECIPITATION (IN)  
YESTERDAY T 1.55 1988 0.12 -0.12 0.00  
MONTH TO DATE 1.19 2.75 -1.56 1.37  
SINCE MAR 1 1.19 2.75 -1.56 1.37  
SINCE JAN 1 7.35 8.17 -0.82 7.94  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.8 1971 0.1 -0.1 0.0  
MONTH TO DATE T 2.6 -2.6 T  
SINCE MAR 1 T 2.6 -2.6 T  
SINCE JUL 1 12.0 21.5 -9.5 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 18 -18 15  
MONTH TO DATE 463 566 -103 402  
SINCE MAR 1 463 566 -103 402  
SINCE JUL 1 3656 4156 -500 3546  
 
COOLING  
YESTERDAY 4 0 4 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 28 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 15.4  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 7:00 AM  
LOWEST 23 1:00 PM  
AVERAGE 55  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 85 1998  
MINIMUM TEMPERATURE (F) 36 15 2014  
 
SUNRISE AND SUNSET  
MARCH 27 2021.........SUNRISE 7:02 AM EDT SUNSET 7:29 PM EDT  
MARCH 28 2021.........SUNRISE 7:00 AM EDT SUNSET 7:30 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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