097  
CDUS41 KLWX 112126  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
425 PM EST FRI JAN 11 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 11 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 36 350 PM 71 1975 42 -6 62  
MINIMUM 24 516 AM -5 1988 24 0 37  
AVERAGE 30 33 -3 50  
 
PRECIPITATION (IN)  
TODAY 0.00 0.90 1991 0.09 -0.09 0.00  
MONTH TO DATE 0.25 0.90 -0.65 0.07  
SINCE DEC 1 6.01 3.86 2.15 0.84  
SINCE JAN 1 0.25 0.90 -0.65 0.07  
 
SNOWFALL (IN)  
TODAY 0.0 2.2 1991 0.2 -0.2  
MONTH TO DATE T 2.0 -2.0  
SINCE JUL 1 3.0 6.0 -3.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 35 32 3 15  
MONTH TO DATE 272 352 -80 461  
SINCE DEC 1 1076 1234 -158 1384  
SINCE JUL 1 2034 2150 -116 2178  
 
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 24 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 13.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 68 800 AM  
LOWEST 35 300 PM  
AVERAGE 52  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 42 70 2018  
2017  
MINIMUM TEMPERATURE (F) 24 -4 1977  
 
 
SUNRISE AND SUNSET  
JANUARY 11 2019.......SUNRISE 728 AM EST SUNSET 507 PM EST  
JANUARY 12 2019.......SUNRISE 728 AM EST SUNSET 508 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