676  
CDUS41 KLWX 102123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
423 PM EST SAT NOV 10 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 10 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 1231 AM 75 1985 60 -14 46  
MINIMUM 38 331 AM 21 2003 37 1 29  
AVERAGE 42 48 -6 38  
 
PRECIPITATION (IN)  
TODAY 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)  
TODAY 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  
TODAY 23 17 6 27  
MONTH TO DATE 135 153 -18 136  
SINCE SEP 1 431 507 -76 356  
SINCE JUL 1 431 509 -78 357  
 
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 32 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 15.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 30 300 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 78 2006  
MINIMUM TEMPERATURE (F) 37 16 1973  
 
 
SUNRISE AND SUNSET  
NOVEMBER 10 2018......SUNRISE 647 AM EST SUNSET 500 PM EST  
NOVEMBER 11 2018......SUNRISE 648 AM EST SUNSET 459 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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