496  
CDUS41 KLWX 110526  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1225 AM EST SUN NOV 11 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 10 2018
 
 
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)  
YESTERDAY  
MAXIMUM 46 1231 AM 75 1985 60 -14 46  
MINIMUM 30 1159 PM 21 2003 37 -7 29  
AVERAGE 38 48 -10 38  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.08 1990 0.11 -0.11 0.00  
MONTH TO DATE 3.29 1.15 2.14 1.66  
SINCE SEP 1 13.33 8.32 5.01 6.56  
SINCE JAN 1 56.59 36.32 20.27 39.56  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.6 1968 0.1 -0.1  
MONTH TO DATE 0.0 0.1 -0.1  
SINCE JUL 1 0.0 0.1 -0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 27 17 10 27  
MONTH TO DATE 139 153 -14 136  
SINCE SEP 1 435 507 -72 356  
SINCE JUL 1 435 509 -74 357  
 
COOLING  
YESTERDAY 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 32 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 12.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 30 300 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 78 2006  
MINIMUM TEMPERATURE (F) 37 16 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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