574  
CDUS41 KLWX 232124  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
424 PM EST SAT FEB 23 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 23 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 40 1039 AM 77 2017 48 -8 47  
MINIMUM 33 308 AM 5 1963 27 6 39  
AVERAGE 37 38 -1 43  
 
PRECIPITATION (IN)  
TODAY 0.07 1.34 1987 0.10 -0.03 0.13  
MONTH TO DATE 2.94 2.26 0.68 4.09  
SINCE DEC 1 12.66 7.90 4.76 6.65  
SINCE JAN 1 6.90 4.94 1.96 5.88  
 
SNOWFALL (IN)  
TODAY 0.0 8.9 1987 0.2 -0.2  
MONTH TO DATE 6.4 6.6 -0.2  
SINCE JUL 1 24.9 17.9 7.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 28 27 1 22  
MONTH TO DATE 620 675 -55 540  
SINCE DEC 1 2425 2543 -118 2466  
SINCE JUL 1 3383 3459 -76 3260  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 5  
SINCE DEC 1 0 0 0 5  
SINCE JAN 1 0 0 0 5    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 3.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 300 PM  
LOWEST 59 900 AM  
AVERAGE 76  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 79 1985  
MINIMUM TEMPERATURE (F) 28 -4 2015  
 
 
SUNRISE AND SUNSET  
FEBRUARY 23 2019......SUNRISE 651 AM EST SUNSET 556 PM EST  
FEBRUARY 24 2019......SUNRISE 650 AM EST SUNSET 557 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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