123  
CDUS41 KLWX 162131  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
531 PM EDT TUE MAR 16 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 16 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 44 3:49 PM 81 1990 55 -11 53  
MINIMUM 39 7:41 AM 16 1969 33 6 31  
AVERAGE 42 44 -2 42  
 
PRECIPITATION (IN)  
TODAY T 1.56 2007 0.12 -0.12 0.00  
MONTH TO DATE 0.18 1.59 -1.41 0.58  
SINCE MAR 1 0.18 1.59 -1.41 0.58  
SINCE JAN 1 6.34 7.01 -0.67 7.15  
 
SNOWFALL (IN)  
TODAY 0.0 6.6 2014 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.9 -1.9 T  
SINCE MAR 1 0.0 1.9 -1.9 T  
SINCE JUL 1 12.0 20.8 -8.8 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 23 21 2 23  
MONTH TO DATE 319 374 -55 260  
SINCE MAR 1 319 374 -55 260  
SINCE JUL 1 3512 3964 -452 3404  
 
COOLING  
TODAY 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 15 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 4:00 PM  
LOWEST 36 12:00 AM  
AVERAGE 55  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 77 1963  
MINIMUM TEMPERATURE (F) 33 16 1970  
 
SUNRISE AND SUNSET  
MARCH 16 2021.........SUNRISE 7:19 AM EDT SUNSET 7:18 PM EDT  
MARCH 17 2021.........SUNRISE 7:18 AM EDT SUNSET 7:19 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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