656  
CDUS41 KLWX 130523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
122 AM EDT WED MAR 13 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 12 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 52 427 PM 89 1990 54 -2 42  
MINIMUM 29 1159 PM 18 1998 32 -3 25  
1984  
1969  
AVERAGE 41 43 -2 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.41 1968 0.10 -0.10 T  
MONTH TO DATE 1.80 1.15 0.65 0.24  
SINCE MAR 1 1.80 1.15 0.65 0.24  
SINCE JAN 1 9.26 6.57 2.69 6.63  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.5 1968 0.1 -0.1  
MONTH TO DATE 1.6 1.6 0.0  
SINCE JUL 1 26.5 20.5 6.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 22 2 31  
MONTH TO DATE 337 288 49 317  
SINCE MAR 1 337 288 49 317  
SINCE JUL 1 3842 3878 -36 3668  
 
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 18 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 8.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 1100 PM  
LOWEST 24 300 PM  
AVERAGE 47  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 87 1990  
MINIMUM TEMPERATURE (F) 32 16 1998  
 
 
SUNRISE AND SUNSET  
MARCH 13 2019.........SUNRISE 725 AM EDT SUNSET 715 PM EDT  
MARCH 14 2019.........SUNRISE 723 AM EDT SUNSET 716 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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