441  
CDUS41 KLWX 032123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
422 PM EST THU JAN 3 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 3 2019
 
 
VALID TODAY AS OF 0400 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 49 1101 AM 68 2000 42 7 32  
MINIMUM 40 839 AM 1 2018 24 16 1  
AVERAGE 45 33 12 17  
 
PRECIPITATION (IN)  
TODAY 0.00 1.37 1999 0.07 -0.07 0.00  
MONTH TO DATE 0.00 0.23 -0.23 0.00  
SINCE DEC 1 5.76 3.19 2.57 0.77  
SINCE JAN 1 0.00 0.23 -0.23 0.00  
 
SNOWFALL (IN)  
TODAY 0.0 0.9 1989 0.2 -0.2  
MONTH TO DATE 0.0 0.5 -0.5  
SINCE JUL 1 3.0 4.5 -1.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 20 32 -12 48  
MONTH TO DATE 58 96 -38 147  
SINCE DEC 1 862 978 -116 1070  
SINCE JUL 1 1820 1894 -74 1864  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 7.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 800 AM  
LOWEST 50 200 PM  
AVERAGE 75  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 42 74 1997  
MINIMUM TEMPERATURE (F) 24 5 1979  
 
 
SUNRISE AND SUNSET  
JANUARY 3 2019.......SUNRISE 729 AM EST SUNSET 500 PM EST  
JANUARY 4 2019.......SUNRISE 729 AM EST SUNSET 501 PM EST  
 
 
- 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