590  
CDUS41 KLWX 200524  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
123 AM EDT WED MAR 20 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 19 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 51 430 PM 76 2012 57 -6 60  
MINIMUM 23 544 AM 10 1967 34 -11 25  
AVERAGE 37 45 -8 43  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.07 1975 0.12 -0.12 0.00  
MONTH TO DATE 1.80 1.93 -0.13 0.24  
SINCE MAR 1 1.80 1.93 -0.13 0.24  
SINCE JAN 1 9.26 7.35 1.91 6.63  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.5 1997 0.0 0.0  
MONTH TO DATE 1.6 2.1 -0.5  
SINCE JUL 1 26.5 21.0 5.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 20 8 22  
MONTH TO DATE 464 435 29 503  
SINCE MAR 1 464 435 29 503  
SINCE JUL 1 3969 4025 -56 3854  
 
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 13 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 2.8  
 
 
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 74 500 AM  
LOWEST 26 100 PM  
AVERAGE 50  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 77 1976  
MINIMUM TEMPERATURE (F) 34 18 1981  
 
 
SUNRISE AND SUNSET  
MARCH 20 2019.........SUNRISE 714 AM EDT SUNSET 722 PM EDT  
MARCH 21 2019.........SUNRISE 712 AM EDT SUNSET 723 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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