644  
CDUS41 KLWX 110524  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
124 AM EDT MON MAR 11 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 10 2019
 
 
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)  
YESTERDAY  
MAXIMUM 63 528 PM 80 2016 53 10 49  
MINIMUM 37 641 AM 7 1996 31 6 20  
AVERAGE 50 42 8 35  
 
PRECIPITATION (IN)  
YESTERDAY 0.26 1.41 2011 0.09 0.17 0.00  
MONTH TO DATE 1.80 0.95 0.85 0.24  
SINCE MAR 1 1.80 0.95 0.85 0.24  
SINCE JAN 1 9.26 6.37 2.89 6.63  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.4 1993 0.1 -0.1  
MONTH TO DATE 1.6 1.3 0.3  
SINCE JUL 1 26.5 20.2 6.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 15 23 -8 30  
MONTH TO DATE 299 243 56 257  
SINCE MAR 1 299 243 56 257  
SINCE JUL 1 3804 3833 -29 3608  
 
COOLING  
YESTERDAY 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 15 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 800 AM  
LOWEST 59 1100 PM  
AVERAGE 80  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 77 1990  
MINIMUM TEMPERATURE (F) 31 13 1996  
 
 
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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