234  
CDUS41 KLWX 210527  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
126 AM EDT SUN APR 21 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 20 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 72 235 PM 88 1985 68 4 60  
1976  
MINIMUM 56 1159 PM 28 1974 43 13 29  
AVERAGE 64 56 8 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.90 2008 0.11 -0.10 0.00  
MONTH TO DATE 2.24 2.31 -0.07 1.63  
SINCE MAR 1 6.79 5.69 1.10 3.42  
SINCE JAN 1 14.25 11.11 3.14 9.81  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1983 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  
YESTERDAY 1 10 -9 20  
MONTH TO DATE 158 253 -95 307  
SINCE MAR 1 842 900 -58 1086  
SINCE JUL 1 4347 4490 -143 4437  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 18 8 10 15  
SINCE MAR 1 18 11 7 15  
SINCE JAN 1 18 11 7 20    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 13.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 300 AM  
LOWEST 37 400 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 89 1985  
MINIMUM TEMPERATURE (F) 44 29 1983  
 
 
SUNRISE AND SUNSET  
APRIL 21 2019.........SUNRISE 625 AM EDT SUNSET 753 PM EDT  
APRIL 22 2019.........SUNRISE 624 AM EDT SUNSET 754 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