557  
CDUS41 KLWX 112130  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
529 PM EDT MON MAR 11 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 11 2019
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 61 359 PM 77 1990 54 7 50  
MINIMUM 40 628 AM 13 1996 31 9 22  
AVERAGE 51 42 9 36  
 
PRECIPITATION (IN)  
TODAY 0.00 0.82 1963 0.10 -0.10 0.00  
MONTH TO DATE 1.80 1.05 0.75 0.24  
SINCE MAR 1 1.80 1.05 0.75 0.24  
SINCE JAN 1 9.26 6.47 2.79 6.63  
 
SNOWFALL (IN)  
TODAY 0.0 1.0 1963 0.2 -0.2  
MONTH TO DATE 1.6 1.5 0.1  
SINCE JUL 1 26.5 20.4 6.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 14 23 -9 29  
MONTH TO DATE 313 266 47 286  
SINCE MAR 1 313 266 47 286  
SINCE JUL 1 3818 3856 -38 3637  
 
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 5    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 8.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 67 600 AM  
LOWEST 20 400 PM  
AVERAGE 44  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 89 1990  
MINIMUM TEMPERATURE (F) 32 18 1998  
1984  
1969  
 
 
SUNRISE AND SUNSET  
MARCH 11 2019.........SUNRISE 728 AM EDT SUNSET 713 PM EDT  
MARCH 12 2019.........SUNRISE 726 AM EDT SUNSET 714 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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