482  
CDUS41 KLWX 150531  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1228 AM EST FRI FEB 15 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 14 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 50 441 PM 71 1990 46 4 53  
MINIMUM 26 733 AM -5 1979 26 0 31  
AVERAGE 38 36 2 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.27 1984 0.10 -0.10 0.07  
MONTH TO DATE 1.51 1.38 0.13 3.23  
SINCE DEC 1 11.23 7.02 4.21 5.79  
SINCE JAN 1 5.47 4.06 1.41 5.02  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.4 1970 0.2 -0.2  
MONTH TO DATE 1.7 4.2 -2.5  
SINCE JUL 1 20.2 15.5 4.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 27 29 -2 23  
MONTH TO DATE 390 422 -32 411  
SINCE DEC 1 2195 2290 -95 2337  
SINCE JUL 1 3153 3206 -53 3131  
 
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 14 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 4.9  
 
 
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 81 700 AM  
LOWEST 33 300 PM  
AVERAGE 57  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 76 2018  
MINIMUM TEMPERATURE (F) 26 6 2015  
 
 
SUNRISE AND SUNSET  
FEBRUARY 15 2019......SUNRISE 701 AM EST SUNSET 547 PM EST  
FEBRUARY 16 2019......SUNRISE 700 AM EST SUNSET 548 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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