749  
CDUS41 KLWX 102123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
423 PM EST TUE NOV 10 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 10 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 77R 1:57 PM 75 1985 60 17 57  
MINIMUM 50 4:59 AM 21 2003 37 13 29  
AVERAGE 64 48 16 43  
 
PRECIPITATION (IN)  
TODAY 0.00 2.08 1990 0.11 -0.11 0.00  
MONTH TO DATE 0.34 1.15 -0.81 0.13  
SINCE SEP 1 6.16 8.32 -2.16 6.51  
SINCE JAN 1 40.38 36.32 4.06 36.35  
 
SNOWFALL (IN)  
TODAY 0.0 1.6 1968 0.1 -0.1 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE SEP 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.1 -0.1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 1 17 -16 22  
MONTH TO DATE 104 153 -49 214  
SINCE SEP 1 371 507 -136 399  
SINCE JUL 1 371 509 -138 399  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 153 160 -7 289  
SINCE JAN 1 1405 1176 229 1524    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 7:00 AM  
LOWEST 54 2:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 78 2006  
MINIMUM TEMPERATURE (F) 37 16 1973  
 
SUNRISE AND SUNSET  
NOVEMBER 10 2020......SUNRISE 6:48 AM EST SUNSET 5:00 PM EST  
NOVEMBER 11 2020......SUNRISE 6:49 AM EST SUNSET 4:59 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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