751  
CDUS41 KLWX 192135  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
432 PM EST WED FEB 19 2020  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 19 2020
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 53 312 PM 71 1997 47 6 40  
MINIMUM 40 840 AM 6 2015 27 13 26  
AVERAGE 47 37 10 33  
 
PRECIPITATION (IN)  
TODAY 0.02 1.34 1972 0.09 -0.07 0.00  
MONTH TO DATE 2.15 1.87 0.28 1.92  
SINCE DEC 1 8.45 7.51 0.94 11.64  
SINCE JAN 1 5.48 4.55 0.93 5.88  
 
SNOWFALL (IN)  
TODAY 0.0 13.8 1979 0.3 -0.3  
MONTH TO DATE T 5.7 -5.7  
SINCE JUL 1 2.9 17.0 -14.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 18 28 -10 32  
MONTH TO DATE 405 565 -160 514  
SINCE DEC 1 2009 2433 -424 2319  
SINCE JUL 1 2872 3349 -477 3277  
 
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 (330)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 11.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 58 400 AM  
LOWEST 21 400 PM  
AVERAGE 40  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 77 2018  
MINIMUM TEMPERATURE (F) 27 -2 1979  
 
 
SUNRISE AND SUNSET  
FEBRUARY 19 2020......SUNRISE 657 AM EST SUNSET 551 PM EST  
FEBRUARY 20 2020......SUNRISE 655 AM EST SUNSET 552 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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