862  
CDUS41 KLWX 062143  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
443 PM EST SAT JAN 06 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 6 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 37 3:59 PM 71 2007 43 -6 51  
MINIMUM 26 12:29 AM 4 1977 26 0 40  
1999  
AVERAGE 32 34 -2 46  
 
PRECIPITATION (IN)  
TODAY 0.69 0.94 1995 0.09 0.60 0.00  
MONTH TO DATE 0.70 0.56 0.14 T  
SINCE DEC 1 6.45 3.86 2.59 4.95  
SINCE JAN 1 0.70 0.56 0.14 T  
 
SNOWFALL (IN)  
TODAY T 4.2 2015 0.1 -0.1 0.0  
MONTH TO DATE T 0.8 -0.8 0.0  
SINCE DEC 1 0.5 3.6 -3.1 T  
SINCE JUL 1 0.5 3.9 -3.4 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 33 31 2 19  
MONTH TO DATE 173 182 -9 77  
SINCE DEC 1 848 1027 -179 939  
SINCE JUL 1 1619 1927 -308 1773  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 2:00 PM  
LOWEST 58 5:00 AM  
AVERAGE 74  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 71 2008  
MINIMUM TEMPERATURE (F) 26 -1 2018  
 
SUNRISE AND SUNSET  
JANUARY 6 2024.......SUNRISE 7:29 AM EST SUNSET 5:02 PM EST  
JANUARY 7 2024.......SUNRISE 7:29 AM EST SUNSET 5:03 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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