577  
CDUS41 KLWX 292126  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
426 PM EST SUN NOV 29 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 29 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 58 2:51 PM 73 1998 52 6 50  
MINIMUM 28 6:27 AM 17 1967 32 -4 38  
AVERAGE 43 42 1 44  
 
PRECIPITATION (IN)  
TODAY 0.00 2.04 1963 0.12 -0.12 0.00  
MONTH TO DATE 2.23 3.29 -1.06 1.62  
SINCE SEP 1 8.05 10.46 -2.41 8.00  
SINCE JAN 1 42.27 38.46 3.81 37.84  
 
SNOWFALL (IN)  
TODAY 0.0 3.3 1995 0.1 -0.1 0.0  
MONTH TO DATE 0.0 0.5 -0.5 T  
SINCE SEP 1 0.0 0.5 -0.5 T  
SINCE JUL 1 0.0 0.5 -0.5 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 22 23 -1 21  
MONTH TO DATE 390 535 -145 654  
SINCE SEP 1 657 889 -232 839  
SINCE JUL 1 657 891 -234 839  
 
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 13 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 3.3  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 5:00 AM  
LOWEST 35 1:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 72 1991  
MINIMUM TEMPERATURE (F) 31 11 1976  
 
SUNRISE AND SUNSET  
NOVEMBER 29 2020......SUNRISE 7:08 AM EST SUNSET 4:48 PM EST  
NOVEMBER 30 2020......SUNRISE 7:09 AM EST SUNSET 4:48 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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