625  
CDUS41 KLWX 272255  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
555 PM EST MON NOV 27 2023  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 27 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 49 8:38 AM 70 2011 52 -3 54  
MINIMUM 31 7:23 AM 11 1974 33 -2 40  
AVERAGE 40 42 -2 47  
 
PRECIPITATION (IN)  
TODAY 0.00 2.59 1993 0.11 -0.11 0.09  
MONTH TO DATE 2.49 2.82 -0.33 2.55  
SINCE SEP 1 9.81 10.41 -0.60 8.07  
SINCE JAN 1 29.03 39.63 -10.60 35.57  
 
SNOWFALL (IN)  
TODAY 0.0 2.9 1978 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.2 -0.2 T  
SINCE SEP 1 T 0.2 -0.2 T  
SINCE JUL 1 T 0.2 -0.2 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 25 23 2 18  
MONTH TO DATE 476 500 -24 433  
SINCE SEP 1 682 829 -147 774  
SINCE JUL 1 682 830 -148 774  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 22  
SINCE SEP 1 265 174 91 198  
SINCE JAN 1 1380 1230 150 1376    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 10.0  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 3:00 AM  
LOWEST 42 12:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 52 71 1990  
1998  
MINIMUM TEMPERATURE (F) 33 19 1996  
 
SUNRISE AND SUNSET  
NOVEMBER 27 2023......SUNRISE 7:05 AM EST SUNSET 4:49 PM EST  
NOVEMBER 28 2023......SUNRISE 7:06 AM EST SUNSET 4:49 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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