851  
CDUS41 KLWX 112123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
422 PM EST SUN NOV 11 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 11 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 46 336 PM 78 2006 60 -14 37  
MINIMUM 25 416 AM 16 1973 37 -12 21  
AVERAGE 36 48 -12 29  
 
PRECIPITATION (IN)  
TODAY 0.00 1.16 1995 0.10 -0.10 0.00  
MONTH TO DATE 3.29 1.25 2.04 1.66  
SINCE SEP 1 13.33 8.42 4.91 6.56  
SINCE JAN 1 56.59 36.42 20.17 39.56  
 
SNOWFALL (IN)  
TODAY 0.0 5.3 1987 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1  
SINCE JUL 1 0.0 0.1 -0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 29 17 12 36  
MONTH TO DATE 168 170 -2 172  
SINCE SEP 1 464 524 -60 392  
SINCE JUL 1 464 526 -62 393  
 
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 10 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 4.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 800 AM  
LOWEST 37 300 PM  
AVERAGE 58  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 74 1964  
MINIMUM TEMPERATURE (F) 36 22 1988  
1973  
 
 
SUNRISE AND SUNSET  
NOVEMBER 11 2018......SUNRISE 648 AM EST SUNSET 459 PM EST  
NOVEMBER 12 2018......SUNRISE 649 AM EST SUNSET 458 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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