440  
CDUS41 KLWX 090522  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1222 AM EST MON NOV 09 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 8 2020
 
 
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)  
YESTERDAY  
MAXIMUM 77R 2:46 PM 77 1975 61 16 44  
1987  
MINIMUM 40 6:47 AM 18 1967 37 3 27  
AVERAGE 59 49 10 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.14 1996 0.11 -0.11 0.00  
MONTH TO DATE 0.34 0.93 -0.59 0.13  
SINCE SEP 1 6.16 8.10 -1.94 6.51  
SINCE JAN 1 40.38 36.10 4.28 36.35  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1976 0.0 0.0 0.0  
1995  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 16 -10 29  
MONTH TO DATE 99 120 -21 160  
SINCE SEP 1 366 474 -108 345  
SINCE JUL 1 366 476 -110 345  
 
COOLING  
YESTERDAY 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 10 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 1.0  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 4:00 AM  
LOWEST 45 3:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 78 1994  
MINIMUM TEMPERATURE (F) 37 19 1967  
1971  
1976  
 
SUNRISE AND SUNSET  
NOVEMBER 9 2020......SUNRISE 6:46 AM EST SUNSET 5:00 PM EST  
NOVEMBER 10 2020......SUNRISE 6:48 AM EST SUNSET 5:00 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page