969  
CDUS41 KLWX 012124  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
424 PM EST FRI FEB 1 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 1 2019
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 23 307 PM 75 2002 44 -21 51  
MINIMUM 8 202 AM 2 1965 24 -16 37  
AVERAGE 16 34 -18 44  
 
PRECIPITATION (IN)  
TODAY 0.06 1.44 2008 0.10 -0.04 0.17  
MONTH TO DATE 0.06 0.10 -0.04 0.17  
SINCE DEC 1 9.78 5.74 4.04 2.73  
SINCE JAN 1 4.02 2.78 1.24 1.96  
 
SNOWFALL (IN)  
TODAY 0.8 1.5 1966 0.3 0.5  
MONTH TO DATE 0.8 0.3 0.5  
SINCE JUL 1 19.3 11.6 7.7  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
TODAY 49 31 18 21  
MONTH TO DATE 49 31 18 21  
SINCE DEC 1 1854 1899 -45 1947  
SINCE JUL 1 2812 2815 -3 2741  
 
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 7 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 2.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 1000 AM  
LOWEST 49 600 AM  
AVERAGE 67  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 68 1990  
MINIMUM TEMPERATURE (F) 24 5 2004  
 
 
SUNRISE AND SUNSET  
FEBRUARY 1 2019......SUNRISE 716 AM EST SUNSET 531 PM EST  
FEBRUARY 2 2019......SUNRISE 715 AM EST SUNSET 532 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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