573  
CDUS41 KLWX 152121  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
421 PM EST SUN NOV 15 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 15 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 68 3:59 PM 81 1993 58 10 53  
MINIMUM 42 3:52 AM 19 1986 36 6 25  
AVERAGE 55 47 8 39  
 
PRECIPITATION (IN)  
TODAY T 1.50 2018 0.12 -0.12 0.00  
MONTH TO DATE 2.03 1.68 0.35 0.29  
SINCE SEP 1 7.85 8.85 -1.00 6.67  
SINCE JAN 1 42.07 36.85 5.22 36.51  
 
SNOWFALL (IN)  
TODAY 0.0 T 1976 0.0 0.0 0.0  
1992  
1995  
MONTH TO DATE 0.0 0.1 -0.1 T  
SINCE SEP 1 0.0 0.1 -0.1 T  
SINCE JUL 1 0.0 0.1 -0.1 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 10 18 -8 26  
MONTH TO DATE 147 241 -94 348  
SINCE SEP 1 414 595 -181 533  
SINCE JUL 1 414 597 -183 533  
 
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 20 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 5:00 AM  
LOWEST 58 12:00 AM  
AVERAGE 74  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 74 2001  
2005  
MINIMUM TEMPERATURE (F) 35 14 1967  
 
SUNRISE AND SUNSET  
NOVEMBER 15 2020......SUNRISE 6:53 AM EST SUNSET 4:55 PM EST  
NOVEMBER 16 2020......SUNRISE 6:54 AM EST SUNSET 4:55 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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