913  
CDUS41 KLWX 310521  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
121 AM EDT SUN MAR 31 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 30 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 77 129 PM 89 1998 61 16 72  
MINIMUM 43 339 AM 22 1970 37 6 41  
AVERAGE 60 49 11 57  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.24 1974 0.13 -0.13 0.01  
MONTH TO DATE 4.54 3.26 1.28 1.79  
SINCE MAR 1 4.54 3.26 1.28 1.79  
SINCE JAN 1 12.00 8.68 3.32 8.18  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.3 1964 0.1 -0.1  
MONTH TO DATE 1.6 2.8 -1.2  
SINCE JUL 1 26.5 21.7 4.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 16 -11 8  
MONTH TO DATE 668 632 36 760  
SINCE MAR 1 668 632 36 760  
SINCE JUL 1 4173 4222 -49 4111  
 
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 23 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 9.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 100 AM  
LOWEST 27 100 PM  
AVERAGE 58  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 85 1998  
MINIMUM TEMPERATURE (F) 38 17 1964  
 
 
SUNRISE AND SUNSET  
MARCH 31 2019.........SUNRISE 656 AM EDT SUNSET 732 PM EDT  
APRIL 1 2019.........SUNRISE 655 AM EDT SUNSET 733 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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