132  
CDUS41 KLWX 252128  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
427 PM EST FRI JAN 25 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 25 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 40 110 PM 73 1967 43 -3 41  
MINIMUM 28 736 AM -5 1987 24 4 22  
AVERAGE 34 33 1 32  
 
PRECIPITATION (IN)  
TODAY 0.00 1.57 1978 0.09 -0.09 0.00  
MONTH TO DATE 3.69 2.13 1.56 1.68  
SINCE DEC 1 9.45 5.09 4.36 2.45  
SINCE JAN 1 3.69 2.13 1.56 1.68  
 
SNOWFALL (IN)  
TODAY 0.0 10.3 2000 0.3 -0.3  
MONTH TO DATE 12.4 5.6 6.8  
SINCE JUL 1 15.4 9.6 5.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 31 32 -1 33  
MONTH TO DATE 763 800 -37 836  
SINCE DEC 1 1567 1682 -115 1759  
SINCE JUL 1 2525 2598 -73 2553  
 
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 23 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 9.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 700 AM  
LOWEST 33 300 PM  
AVERAGE 59  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 70 1967  
MINIMUM TEMPERATURE (F) 24 3 1987  
 
 
SUNRISE AND SUNSET  
JANUARY 25 2019.......SUNRISE 722 AM EST SUNSET 523 PM EST  
JANUARY 26 2019.......SUNRISE 721 AM EST SUNSET 524 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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