342  
CDUS41 KLWX 260532  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
132 AM EDT FRI MAR 26 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 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 65 11:59 PM 78 2017 59 6 47  
MINIMUM 53 12:36 AM 17 1971 36 17 43  
AVERAGE 59 47 12 45  
 
PRECIPITATION (IN)  
YESTERDAY T 0.96 1984 0.12 -0.12 0.25  
MONTH TO DATE 1.19 2.63 -1.44 1.37  
SINCE MAR 1 1.19 2.63 -1.44 1.37  
SINCE JAN 1 7.35 8.05 -0.70 7.94  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.8 2014 0.0 0.0 0.0  
MONTH TO DATE T 2.5 -2.5 T  
SINCE MAR 1 T 2.5 -2.5 T  
SINCE JUL 1 12.0 21.4 -9.4 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 18 -12 20  
MONTH TO DATE 463 548 -85 387  
SINCE MAR 1 463 548 -85 387  
SINCE JUL 1 3656 4138 -482 3531  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE MAR 1 0 0 0 3  
SINCE JAN 1 0 0 0 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1:00 AM  
LOWEST 80 4:00 PM  
AVERAGE 90  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 78 2004  
MINIMUM TEMPERATURE (F) 36 17 1983  
 
SUNRISE AND SUNSET  
MARCH 26 2021.........SUNRISE 7:03 AM EDT SUNSET 7:28 PM EDT  
MARCH 27 2021.........SUNRISE 7:02 AM EDT SUNSET 7:29 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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