612  
CDUS41 KLWX 160523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
123 AM EDT SAT MAR 16 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 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 77 328 PM 84 2012 55 22 53  
MINIMUM 53 1159 PM -1 1993 33 20 26  
AVERAGE 65 44 21 40  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.89 1967 0.11 -0.11 0.00  
MONTH TO DATE 1.80 1.47 0.33 0.24  
SINCE MAR 1 1.80 1.47 0.33 0.24  
SINCE JAN 1 9.26 6.89 2.37 6.63  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.4 1999 0.1 -0.1  
MONTH TO DATE 1.6 1.8 -0.2  
SINCE JUL 1 26.5 20.7 5.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 21 -21 25  
MONTH TO DATE 368 353 15 399  
SINCE MAR 1 368 353 15 399  
SINCE JUL 1 3873 3943 -70 3750  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 5    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 17.6  
 
 
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 73 800 AM  
LOWEST 32 800 PM  
AVERAGE 53  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 81 1990  
MINIMUM TEMPERATURE (F) 33 16 1969  
 
 
SUNRISE AND SUNSET  
MARCH 16 2019.........SUNRISE 720 AM EDT SUNSET 718 PM EDT  
MARCH 17 2019.........SUNRISE 718 AM EDT SUNSET 719 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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