212  
CDUS41 KLWX 112125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
425 PM EST WED NOV 11 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 11 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 69 3:59 PM 78 2006 60 9 69  
MINIMUM 62 12:00 AM 16 1973 37 25 31  
AVERAGE 66 48 18 50  
 
PRECIPITATION (IN)  
TODAY 0.91 1.16 1995 0.10 0.81 0.00  
MONTH TO DATE 1.25 1.25 0.00 0.13  
SINCE SEP 1 7.07 8.42 -1.35 6.51  
SINCE JAN 1 41.29 36.42 4.87 36.35  
 
SNOWFALL (IN)  
TODAY 0.0 5.3 1987 0.0 0.0 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 0 17 -17 15  
MONTH TO DATE 104 170 -66 229  
SINCE SEP 1 371 524 -153 414  
SINCE JUL 1 371 526 -155 414  
 
COOLING  
TODAY 1 0 1 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 (190)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 8.5  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 3:00 PM  
LOWEST 87 1:00 AM  
AVERAGE 92  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 74 1964  
MINIMUM TEMPERATURE (F) 36 22 1973  
1988  
 
SUNRISE AND SUNSET  
NOVEMBER 11 2020......SUNRISE 6:49 AM EST SUNSET 4:59 PM EST  
NOVEMBER 12 2020......SUNRISE 6:50 AM EST SUNSET 4:58 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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