677  
CDUS41 KLWX 132125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
424 PM EST WED FEB 13 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 13 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 48 227 PM 65 1974 46 2 42  
MINIMUM 34 806 AM -8 1983 26 8 25  
AVERAGE 41 36 5 34  
 
PRECIPITATION (IN)  
TODAY 0.00 1.29 1972 0.10 -0.10 T  
MONTH TO DATE 1.51 1.28 0.23 3.16  
SINCE DEC 1 11.23 6.92 4.31 5.72  
SINCE JAN 1 5.47 3.96 1.51 4.95  
 
SNOWFALL (IN)  
TODAY 0.0 11.7 2014 0.3 -0.3  
MONTH TO DATE 1.7 4.0 -2.3  
SINCE JUL 1 20.2 15.3 4.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 24 29 -5 31  
MONTH TO DATE 362 393 -31 388  
SINCE DEC 1 2167 2261 -94 2314  
SINCE JUL 1 3125 3177 -52 3108  
 
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 W (290)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 9.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 100 AM  
LOWEST 42 100 PM  
AVERAGE 67  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 71 1990  
MINIMUM TEMPERATURE (F) 26 -5 1979  
 
 
SUNRISE AND SUNSET  
FEBRUARY 13 2019......SUNRISE 704 AM EST SUNSET 545 PM EST  
FEBRUARY 14 2019......SUNRISE 703 AM EST SUNSET 546 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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