858  
CDUS41 KLWX 270606  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
106 AM EST FRI NOV 27 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 26 2020
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1960 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 70 3:35 PM 75 1990 53 17 62  
MINIMUM 46 11:34 PM 16 1974 32 14 29  
AVERAGE 58 43 15 46  
 
PRECIPITATION (IN)  
YESTERDAY 0.14 1.72 2013 0.12 0.02 0.00  
MONTH TO DATE 2.23 2.95 -0.72 1.60  
SINCE SEP 1 8.05 10.12 -2.07 7.98  
SINCE JAN 1 42.27 38.12 4.15 37.82  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.6 2014 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.3 -0.3 T  
SINCE SEP 1 0.0 0.3 -0.3 T  
SINCE JUL 1 0.0 0.3 -0.3 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 22 -15 19  
MONTH TO DATE 337 466 -129 597  
SINCE SEP 1 604 820 -216 782  
SINCE JUL 1 604 822 -218 782  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE SEP 1 154 160 -6 289  
SINCE JAN 1 1406 1176 230 1524    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 2:00 AM  
LOWEST 51 3:00 PM  
AVERAGE 74  
   
......................................................
 
 
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 2020......SUNRISE 7:06 AM EST SUNSET 4:49 PM EST  
NOVEMBER 28 2020......SUNRISE 7:07 AM EST SUNSET 4:49 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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