437  
CDUS41 KLWX 102125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
425 PM EST SAT FEB 10 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 10 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 65R 1:26 PM 65 2023 45 20 65  
MINIMUM 48 7:39 AM -10 1979 26 22 41  
AVERAGE 57 35 22 53  
 
PRECIPITATION (IN)  
TODAY 0.00 0.65 1970 0.09 -0.09 0.00  
MONTH TO DATE T 0.93 -0.93 0.06  
SINCE DEC 1 11.75 7.17 4.58 6.37  
SINCE JAN 1 6.00 3.87 2.13 1.42  
 
SNOWFALL (IN)  
TODAY 0.0 7.1 2010 0.2 -0.2 0.0  
MONTH TO DATE 0.0 2.8 -2.8 0.4  
SINCE DEC 1 10.0 12.5 -2.5 0.4  
SINCE JUL 1 10.0 12.8 -2.8 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 8 30 -22 12  
MONTH TO DATE 215 303 -88 246  
SINCE DEC 1 1757 2112 -355 1811  
SINCE JUL 1 2528 3012 -484 2645  
 
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 14 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 3:00 AM  
LOWEST 54 4:00 PM  
AVERAGE 60  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 71 2009  
MINIMUM TEMPERATURE (F) 26 -7 1979  
 
SUNRISE AND SUNSET  
FEBRUARY 10 2024......SUNRISE 7:07 AM EST SUNSET 5:41 PM EST  
FEBRUARY 11 2024......SUNRISE 7:06 AM EST SUNSET 5:42 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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