381  
CDUS41 KLWX 110535  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
135 AM EDT THU APR 11 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 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 70 404 PM 89 2013 65 5 53  
MINIMUM 43 349 AM 19 1985 41 2 34  
AVERAGE 57 53 4 44  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.84 1983 0.12 -0.12 0.00  
MONTH TO DATE 0.38 1.21 -0.83 0.15  
SINCE MAR 1 4.93 4.59 0.34 1.94  
SINCE JAN 1 12.39 10.01 2.38 8.33  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1996 0.0 0.0  
1973  
MONTH TO DATE 0.0 0.2 -0.2  
SINCE JUL 1 26.5 21.9 4.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 13 -5 21  
MONTH TO DATE 122 142 -20 178  
SINCE MAR 1 806 789 17 957  
SINCE JUL 1 4311 4379 -68 4308  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 8 0 8 0  
SINCE MAR 1 8 3 5 0  
SINCE JAN 1 8 3 5 5    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 8.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 61 1100 PM  
LOWEST 20 600 PM  
AVERAGE 41  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 87 1977  
MINIMUM TEMPERATURE (F) 41 25 1971  
1970  
1960  
 
 
SUNRISE AND SUNSET  
APRIL 11 2019.........SUNRISE 640 AM EDT SUNSET 743 PM EDT  
APRIL 12 2019.........SUNRISE 638 AM EDT SUNSET 744 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page