849  
CDUS41 KLWX 200526  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1223 AM EST WED FEB 20 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 19 2019
 
 
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)  
YESTERDAY  
MAXIMUM 40 339 PM 71 1997 47 -7 47  
MINIMUM 26 702 AM 6 2015 27 -1 36  
AVERAGE 33 37 -4 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.34 1972 0.09 -0.09 0.04  
MONTH TO DATE 1.92 1.87 0.05 3.85  
SINCE DEC 1 11.64 7.51 4.13 6.41  
SINCE JAN 1 5.88 4.55 1.33 5.64  
 
SNOWFALL (IN)  
YESTERDAY 0.0 13.8 1979 0.3 -0.3  
MONTH TO DATE 1.7 5.7 -4.0  
SINCE JUL 1 20.2 17.0 3.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 28 4 23  
MONTH TO DATE 514 565 -51 503  
SINCE DEC 1 2319 2433 -114 2429  
SINCE JUL 1 3277 3349 -72 3223  
 
COOLING  
YESTERDAY 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 22 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 7.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 59 1100 PM  
LOWEST 25 300 PM  
AVERAGE 42  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 77 2018  
MINIMUM TEMPERATURE (F) 27 -2 1979  
 
 
SUNRISE AND SUNSET  
FEBRUARY 20 2019......SUNRISE 655 AM EST SUNSET 553 PM EST  
FEBRUARY 21 2019......SUNRISE 654 AM EST SUNSET 554 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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