281  
CDUS41 KLWX 240537  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1228 AM EST SAT FEB 24 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 23 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 47 1159 PM 77 2017 48 -1 77  
MINIMUM 39 638 AM 5 1963 27 12 52  
AVERAGE 43 38 5 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.13 1.34 1987 0.10 0.03 0.00  
MONTH TO DATE 4.09 2.26 1.83 0.25  
SINCE DEC 1 6.65 7.90 -1.25 5.34  
SINCE JAN 1 5.88 4.94 0.94 2.98  
 
SNOWFALL (IN)  
YESTERDAY 0.0 8.9 1987 0.2 -0.2  
MONTH TO DATE 1.6 6.6 -5.0  
SINCE JUL 1 6.6 17.9 -11.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 27 -5 0  
MONTH TO DATE 540 675 -135 484  
SINCE DEC 1 2466 2543 -77 2093  
SINCE JUL 1 3260 3459 -199 2820  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 5 0 5 0  
SINCE DEC 1 5 0 5 0  
SINCE JAN 1 5 0 5 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 4.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 200 AM  
LOWEST 86 100 AM  
AVERAGE 93  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 79 1985  
MINIMUM TEMPERATURE (F) 28 -4 2015  
 
 
SUNRISE AND SUNSET  
FEBRUARY 24 2018......SUNRISE 649 AM EST SUNSET 557 PM EST  
FEBRUARY 25 2018......SUNRISE 648 AM EST SUNSET 558 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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