340  
CDUS41 KLWX 092126  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
426 PM EST FRI FEB 09 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 9 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 67 2:50 PM 71 2023 45 22 71  
MINIMUM 41 7:19 AM -5 1967 26 15 40  
AVERAGE 54 35 19 56  
 
PRECIPITATION (IN)  
TODAY T 1.07 1970 0.09 -0.09 0.00  
MONTH TO DATE T 0.84 -0.84 0.06  
SINCE DEC 1 11.75 7.08 4.67 6.37  
SINCE JAN 1 6.00 3.78 2.22 1.42  
 
SNOWFALL (IN)  
TODAY 0.0 2.2 2010 0.3 -0.3 0.0  
MONTH TO DATE 0.0 2.6 -2.6 0.4  
SINCE DEC 1 10.0 12.3 -2.3 0.4  
SINCE JUL 1 10.0 12.6 -2.6 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 11 30 -19 9  
MONTH TO DATE 207 273 -66 234  
SINCE DEC 1 1749 2082 -333 1799  
SINCE JUL 1 2520 2982 -462 2633  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 3 0 3 0  
SINCE JAN 1 3 0 3 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 68 8:00 AM  
LOWEST 30 3:00 PM  
AVERAGE 49  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 65 2023  
MINIMUM TEMPERATURE (F) 26 -10 1979  
 
SUNRISE AND SUNSET  
FEBRUARY 9 2024......SUNRISE 7:09 AM EST SUNSET 5:40 PM EST  
FEBRUARY 10 2024......SUNRISE 7:07 AM EST SUNSET 5:41 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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