892  
CDUS41 KLWX 192122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
422 PM EST TUE NOV 19 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 19 2019
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 54 250 PM 76 1985 56 -2 61  
MINIMUM 39 514 AM 13 2014 35 4 34  
AVERAGE 47 45 2 48  
 
PRECIPITATION (IN)  
TODAY T 1.93 2003 0.12 -0.12 0.00  
MONTH TO DATE 0.42 2.15 -1.73 5.86  
SINCE SEP 1 6.80 9.32 -2.52 15.90  
SINCE JAN 1 36.64 37.32 -0.68 59.16  
 
SNOWFALL (IN)  
TODAY 0.0 T 2016 0.0 0.0  
1984  
1969  
MONTH TO DATE T 0.1 -0.1  
SINCE JUL 1 T 0.1 -0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 18 20 -2 17  
MONTH TO DATE 441 318 123 365  
SINCE SEP 1 626 672 -46 661  
SINCE JUL 1 626 674 -48 661  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 289 160 129 338  
SINCE JAN 1 1524 1176 348 1522    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 3.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 700 AM  
LOWEST 54 200 PM  
AVERAGE 77  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 79 1985  
MINIMUM TEMPERATURE (F) 34 18 1980  
 
 
SUNRISE AND SUNSET  
NOVEMBER 19 2019......SUNRISE 657 AM EST SUNSET 453 PM EST  
NOVEMBER 20 2019......SUNRISE 658 AM EST SUNSET 453 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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