164  
CDUS41 KLWX 252122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
422 PM EST WED NOV 25 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 25 2020
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 57 3:59 PM 77 1979 54 3 57  
MINIMUM 41 7:25 AM 15 1970 33 8 28  
AVERAGE 49 43 6 43  
 
PRECIPITATION (IN)  
TODAY 0.00 1.31 1964 0.11 -0.11 0.00  
MONTH TO DATE 2.09 2.83 -0.74 1.60  
SINCE SEP 1 7.91 10.00 -2.09 7.98  
SINCE JAN 1 42.13 38.00 4.13 37.82  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 1983 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  
TODAY 16 22 -6 22  
MONTH TO DATE 330 444 -114 578  
SINCE SEP 1 597 798 -201 763  
SINCE JUL 1 597 800 -203 763  
 
COOLING  
TODAY 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 21 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 8:00 AM  
LOWEST 47 1:00 PM  
AVERAGE 60  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 75 1990  
MINIMUM TEMPERATURE (F) 32 16 1974  
 
SUNRISE AND SUNSET  
NOVEMBER 25 2020......SUNRISE 7:04 AM EST SUNSET 4:50 PM EST  
NOVEMBER 26 2020......SUNRISE 7:05 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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