252  
CDUS41 KLWX 280529  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
129 AM EDT THU MAR 28 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 27 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 53 508 PM 85 1998 60 -7 43  
MINIMUM 24 429 AM 15 2014 36 -12 28  
AVERAGE 39 48 -9 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.19 1994 0.13 -0.13 0.08  
1983  
MONTH TO DATE 4.54 2.88 1.66 1.59  
SINCE MAR 1 4.54 2.88 1.66 1.59  
SINCE JAN 1 12.00 8.30 3.70 7.98  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.1 2011 0.1 -0.1  
MONTH TO DATE 1.6 2.7 -1.1  
SINCE JUL 1 26.5 21.6 4.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 26 17 9 29  
MONTH TO DATE 638 583 55 730  
SINCE MAR 1 638 583 55 730  
SINCE JUL 1 4143 4173 -30 4081  
 
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 14 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 4.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 500 AM  
LOWEST 19 400 PM  
AVERAGE 50  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 86 1989  
MINIMUM TEMPERATURE (F) 37 18 2001  
 
 
SUNRISE AND SUNSET  
MARCH 28 2019.........SUNRISE 701 AM EDT SUNSET 729 PM EDT  
MARCH 29 2019.........SUNRISE 659 AM EDT SUNSET 730 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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