817  
CDUS41 KLWX 162128  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
428 PM EST FRI NOV 16 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 16 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 48 359 PM 74 2005 57 -9 62  
2001  
MINIMUM 34 430 AM 14 1967 35 -1 39  
AVERAGE 41 46 -5 51  
 
PRECIPITATION (IN)  
TODAY 0.02 1.75 1989 0.12 -0.10 T  
MONTH TO DATE 5.87 1.80 4.07 1.86  
SINCE SEP 1 15.91 8.97 6.94 6.76  
SINCE JAN 1 59.17 36.97 22.20 39.76  
 
SNOWFALL (IN)  
TODAY 0.0 T 2014 0.0 0.0  
1995  
1980  
MONTH TO DATE 3.0 0.1 2.9  
SINCE JUL 1 3.0 0.1 2.9  
SNOW DEPTH 2  
 
DEGREE DAYS  
HEATING  
TODAY 24 19 5 14  
MONTH TO DATE 296 260 36 285  
SINCE SEP 1 592 614 -22 505  
SINCE JUL 1 592 616 -24 506  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE SEP 1 338 160 178 220  
SINCE JAN 1 1522 1176 346 1281    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 11.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 100 AM  
LOWEST 56 200 PM  
AVERAGE 78  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 75 1963  
MINIMUM TEMPERATURE (F) 35 17 1976  
 
 
SUNRISE AND SUNSET  
NOVEMBER 16 2018......SUNRISE 654 AM EST SUNSET 455 PM EST  
NOVEMBER 17 2018......SUNRISE 655 AM EST SUNSET 454 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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