013  
CDUS41 KLWX 122127  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
427 PM EST MON FEB 12 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 12 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 49 3:31 PM 74 1999 45 4 42  
MINIMUM 46 12:48 AM 3 1964 26 20 35  
AVERAGE 48 36 12 39  
 
PRECIPITATION (IN)  
TODAY 0.00 1.77 1985 0.09 -0.09 0.95  
MONTH TO DATE 0.14 1.10 -0.96 1.01  
SINCE DEC 1 11.89 7.34 4.55 7.32  
SINCE JAN 1 6.14 4.04 2.10 2.37  
 
SNOWFALL (IN)  
TODAY 0.0 5.1 1979 0.2 -0.2 T  
MONTH TO DATE 0.0 3.3 -3.3 0.4  
SINCE DEC 1 10.0 13.0 -3.0 0.4  
SINCE JUL 1 10.0 13.3 -3.3 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 17 29 -12 26  
MONTH TO DATE 245 361 -116 295  
SINCE DEC 1 1787 2170 -383 1860  
SINCE JUL 1 2558 3070 -512 2694  
 
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 9 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 12:00 AM  
LOWEST 86 9:00 AM  
AVERAGE 90  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 65 1974  
MINIMUM TEMPERATURE (F) 26 -8 1983  
 
SUNRISE AND SUNSET  
FEBRUARY 12 2024......SUNRISE 7:05 AM EST SUNSET 5:43 PM EST  
FEBRUARY 13 2024......SUNRISE 7:04 AM EST SUNSET 5:44 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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