942  
CDUS41 KLWX 300522  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1222 AM EST FRI NOV 30 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 29 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 38 410 PM 73 1998 52 -14 68  
MINIMUM 27 112 AM 17 1967 32 -5 32  
AVERAGE 33 42 -9 50  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.04 1963 0.12 -0.12 0.00  
MONTH TO DATE 7.67 3.29 4.38 1.96  
SINCE SEP 1 17.71 10.46 7.25 6.86  
SINCE JAN 1 60.97 38.46 22.51 39.86  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.3 1995 0.1 -0.1  
MONTH TO DATE 3.0 0.5 2.5  
SINCE JUL 1 3.0 0.5 2.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 23 9 15  
MONTH TO DATE 635 535 100 553  
SINCE SEP 1 931 889 42 773  
SINCE JUL 1 931 891 40 774  
 
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 22 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 7.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 900 PM  
LOWEST 44 400 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 72 1991  
MINIMUM TEMPERATURE (F) 31 11 1976  
 
 
SUNRISE AND SUNSET  
NOVEMBER 30 2018......SUNRISE 709 AM EST SUNSET 448 PM EST  
DECEMBER 1 2018......SUNRISE 709 AM EST SUNSET 448 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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