249  
CDUS41 KLWX 272132  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
531 PM EDT SAT APR 27 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 27 2019
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 70 334 PM 92 2009 70 0 64  
1990  
MINIMUM 50 608 AM 31 1987 45 5 49  
1972  
AVERAGE 60 58 2 57  
 
PRECIPITATION (IN)  
TODAY T 1.65 1973 0.12 -0.12 0.84  
MONTH TO DATE 2.75 3.12 -0.37 3.54  
SINCE MAR 1 7.30 6.50 0.80 5.33  
SINCE JAN 1 14.76 11.92 2.84 11.72  
 
SNOWFALL (IN)  
TODAY 0.0 T 1994 0.0 0.0  
MONTH TO DATE 0.0 0.3 -0.3  
SINCE JUL 1 26.5 22.0 4.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 5 8 -3 8  
MONTH TO DATE 177 315 -138 372  
SINCE MAR 1 861 962 -101 1151  
SINCE JUL 1 4366 4552 -186 4502  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 19 15 4 15  
SINCE MAR 1 19 18 1 15  
SINCE JAN 1 19 18 1 20    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 17.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 200 AM  
LOWEST 20 400 PM  
AVERAGE 46  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 88 1990  
1983  
1981  
MINIMUM TEMPERATURE (F) 46 32 1993  
1972  
 
 
SUNRISE AND SUNSET  
APRIL 27 2019.........SUNRISE 617 AM EDT SUNSET 758 PM EDT  
APRIL 28 2019.........SUNRISE 616 AM EDT SUNSET 759 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