154  
CDUS41 KLWX 032129  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
429 PM EST SUN DEC 03 2023  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 3 2023
 
 
VALID TODAY AS OF 0400 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 56 3:59 PM 74 1998 50 6 62  
MINIMUM 52 8:02 AM 7 1976 31 21 42  
AVERAGE 54 41 13 52  
 
PRECIPITATION (IN)  
TODAY 0.55 1.14 1967 0.12 0.43 0.33  
MONTH TO DATE 0.68 0.34 0.34 0.33  
SINCE DEC 1 0.68 0.34 0.34 0.33  
SINCE JAN 1 29.71 40.28 -10.57 36.14  
 
SNOWFALL (IN)  
TODAY 0.0 T 1983 0.1 -0.1 0.0  
1989  
2005  
MONTH TO DATE 0.0 0.2 -0.2 0.0  
SINCE DEC 1 0.0 0.2 -0.2 0.0  
SINCE JUL 1 T 0.5 -0.5 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 11 24 -13 13  
MONTH TO DATE 47 72 -25 69  
SINCE DEC 1 47 72 -25 69  
SINCE JUL 1 818 972 -154 903  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1380 1231 149 1376    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 11:00 AM  
LOWEST 89 2:00 AM  
AVERAGE 91  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 50 75 1998  
MINIMUM TEMPERATURE (F) 31 10 1966  
 
SUNRISE AND SUNSET  
DECEMBER 3 2023......SUNRISE 7:11 AM EST SUNSET 4:48 PM EST  
DECEMBER 4 2023......SUNRISE 7:12 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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