451  
CDUS41 KLWX 082121  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
421 PM EST MON MAR 08 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 8 2021
 
 
VALID TODAY AS OF 0400 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 56 3:58 PM 84 2000 53 3 63  
MINIMUM 19 6:54 AM 11 1986 31 -12 26  
2007  
AVERAGE 38 42 -4 45  
 
PRECIPITATION (IN)  
TODAY 0.00 1.16 1995 0.09 -0.09 0.00  
MONTH TO DATE 0.18 0.75 -0.57 0.13  
SINCE MAR 1 0.18 0.75 -0.57 0.13  
SINCE JAN 1 6.34 6.17 0.17 6.70  
 
SNOWFALL (IN)  
TODAY MM 4.7 1984 0.1 MM 0.0  
MONTH TO DATE 0.0 1.1 -1.1 0.0  
SINCE MAR 1 0.0 1.1 -1.1 0.0  
SINCE JUL 1 12.0 20.0 -8.0 2.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 27 24 3 20  
MONTH TO DATE 212 197 15 156  
SINCE MAR 1 212 197 15 156  
SINCE JUL 1 3405 3787 -382 3300  
 
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 14 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 3.3  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 4:00 AM  
LOWEST 18 3:00 PM  
AVERAGE 51  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 82 2016  
MINIMUM TEMPERATURE (F) 31 14 1996  
 
SUNRISE AND SUNSET  
MARCH 8 2021.........SUNRISE 6:31 AM EST SUNSET 6:10 PM EST  
MARCH 9 2021.........SUNRISE 6:30 AM EST SUNSET 6:11 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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