497  
CDUS41 KLWX 242120  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
520 PM EDT WED MAR 24 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 24 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 58 3:59 PM 79 1988 59 -1 53  
1994  
MINIMUM 53 6:35 AM 19 2014 35 18 34  
AVERAGE 56 47 9 44  
 
PRECIPITATION (IN)  
TODAY 0.60 1.79 1979 0.12 0.48 T  
MONTH TO DATE 1.19 2.51 -1.32 1.12  
SINCE MAR 1 1.19 2.51 -1.32 1.12  
SINCE JAN 1 7.35 7.93 -0.58 7.69  
 
SNOWFALL (IN)  
TODAY 0.0 3.0 1990 0.1 -0.1 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  
TODAY 9 18 -9 21  
MONTH TO DATE 457 530 -73 367  
SINCE MAR 1 457 530 -73 367  
SINCE JUL 1 3650 4120 -470 3511  
 
COOLING  
TODAY 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 12 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 5.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 5:00 AM  
LOWEST 74 12:00 AM  
AVERAGE 86  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 78 2017  
MINIMUM TEMPERATURE (F) 36 17 1971  
 
SUNRISE AND SUNSET  
MARCH 24 2021.........SUNRISE 7:07 AM EDT SUNSET 7:26 PM EDT  
MARCH 25 2021.........SUNRISE 7:05 AM EDT SUNSET 7:27 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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