378  
CDUS41 KLWX 160529  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1224 AM EST SAT FEB 16 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 15 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 65 108 PM 76 2018 46 19 76  
MINIMUM 47 218 AM 6 2015 26 21 48  
AVERAGE 56 36 20 62  
 
PRECIPITATION (IN)  
YESTERDAY T 0.52 1992 0.10 -0.10 0.01  
MONTH TO DATE 1.51 1.48 0.03 3.24  
SINCE DEC 1 11.23 7.12 4.11 5.80  
SINCE JAN 1 5.47 4.16 1.31 5.03  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.2 2003 0.3 -0.3  
MONTH TO DATE 1.7 4.5 -2.8  
SINCE JUL 1 20.2 15.8 4.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 29 -20 3  
MONTH TO DATE 399 451 -52 414  
SINCE DEC 1 2204 2319 -115 2340  
SINCE JUL 1 3162 3235 -73 3134  
 
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 25 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 14.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 51 700 PM  
LOWEST 22 1100 PM  
AVERAGE 37  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 70 1976  
MINIMUM TEMPERATURE (F) 26 6 2015  
 
 
SUNRISE AND SUNSET  
FEBRUARY 16 2019......SUNRISE 700 AM EST SUNSET 548 PM EST  
FEBRUARY 17 2019......SUNRISE 659 AM EST SUNSET 549 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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