296  
CDUS41 KLWX 052123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
423 PM EST THU DEC 05 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 5 2024  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 42 4:35 AM 77 2001 49 -7 51  
MINIMUM 33 3:59 PM 12 1966 31 2 35  
AVERAGE 38 40 -2 43  
 
PRECIPITATION (IN)  
TODAY T 1.02 2003 0.12 -0.12 T  
MONTH TO DATE T 0.57 -0.57 0.69  
SINCE DEC 1 T 0.57 -0.57 0.69  
SINCE JAN 1 31.03 40.51 -9.48 29.72  
 
SNOWFALL (IN)  
TODAY T 6.2 2002 0.1 -0.1 0.0  
MONTH TO DATE T 0.3 -0.3 0.0  
SINCE DEC 1 T 0.3 -0.3 0.0  
SINCE JUL 1 T 0.6 -0.6 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 27 25 2 22  
MONTH TO DATE 163 122 41 90  
SINCE DEC 1 163 122 41 90  
SINCE JUL 1 831 1022 -191 861  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1586 1231 355 1380    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 49 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 19.0  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 5:00 AM  
LOWEST 31 10:00 AM  
AVERAGE 54  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 79 1998  
MINIMUM TEMPERATURE (F) 31 9 2002  
 
SUNRISE AND SUNSET  
DECEMBER 5 2024......SUNRISE 7:14 AM EST SUNSET 4:47 PM EST  
DECEMBER 6 2024......SUNRISE 7:15 AM EST SUNSET 4:47 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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