446  
CDUS41 KLWX 302124  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
424 PM EST MON NOV 30 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 30 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 62 12:13 PM 72 1991 51 11 44  
MINIMUM 49 4:07 AM 11 1976 31 18 38  
AVERAGE 56 41 15 41  
 
PRECIPITATION (IN)  
TODAY 1.38R 1.31 2016 0.12 1.26 0.00  
MONTH TO DATE 3.61 3.41 0.20 1.62  
SINCE SEP 1 9.43 10.58 -1.15 8.00  
SINCE JAN 1 43.65 38.58 5.07 37.84  
 
SNOWFALL (IN)  
TODAY 0.0 11.4 1967 0.0 0.0 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 9 24 -15 24  
MONTH TO DATE 399 559 -160 678  
SINCE SEP 1 666 913 -247 863  
SINCE JUL 1 666 915 -249 863  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 1 2 -1 0  
SINCE SEP 1 154 162 -8 289  
SINCE JAN 1 1406 1178 228 1524    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 6.8  
 
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 97 10:00 AM  
LOWEST 77 12:00 AM  
AVERAGE 87  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 75 2006  
MINIMUM TEMPERATURE (F) 31 4 1967  
 
SUNRISE AND SUNSET  
NOVEMBER 30 2020......SUNRISE 7:09 AM EST SUNSET 4:48 PM EST  
DECEMBER 1 2020......SUNRISE 7:10 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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