270  
CDUS41 KLWX 270524  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1223 AM EST TUE NOV 27 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 26 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 50 359 PM 75 1990 53 -3 53  
MINIMUM 39 1005 PM 16 1974 32 7 31  
AVERAGE 45 43 2 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.22 1.72 2013 0.12 0.10 0.00  
MONTH TO DATE 7.67 2.95 4.72 1.96  
SINCE SEP 1 17.71 10.12 7.59 6.86  
SINCE JAN 1 60.97 38.12 22.85 39.86  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.6 2014 0.0 0.0  
MONTH TO DATE 3.0 0.3 2.7  
SINCE JUL 1 3.0 0.3 2.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 22 -2 23  
MONTH TO DATE 544 466 78 500  
SINCE SEP 1 840 820 20 720  
SINCE JUL 1 840 822 18 721  
 
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 18 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 10.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1100 AM  
LOWEST 62 900 PM  
AVERAGE 81  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 70 2011  
MINIMUM TEMPERATURE (F) 32 11 1974  
 
 
SUNRISE AND SUNSET  
NOVEMBER 27 2018......SUNRISE 705 AM EST SUNSET 449 PM EST  
NOVEMBER 28 2018......SUNRISE 707 AM EST SUNSET 449 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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