293  
CDUS41 KLWX 262121  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
421 PM EST SAT JAN 26 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 26 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 39 346 PM 70 1967 43 -4 48  
MINIMUM 17 554 AM 3 1987 24 -7 19  
AVERAGE 28 34 -6 34  
 
PRECIPITATION (IN)  
TODAY 0.00 1.31 2011 0.09 -0.09 0.00  
MONTH TO DATE 3.69 2.22 1.47 1.68  
SINCE DEC 1 9.45 5.18 4.27 2.45  
SINCE JAN 1 3.69 2.22 1.47 1.68  
 
SNOWFALL (IN)  
TODAY 0.0 7.3 2011 0.2 -0.2  
MONTH TO DATE 12.4 5.8 6.6  
SINCE JUL 1 15.4 9.8 5.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 37 32 5 31  
MONTH TO DATE 802 832 -30 867  
SINCE DEC 1 1606 1714 -108 1790  
SINCE JUL 1 2564 2630 -66 2584  
 
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 9 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 2.6  
 
 
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 92 600 AM  
LOWEST 32 300 PM  
AVERAGE 62  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 71 1974  
MINIMUM TEMPERATURE (F) 24 -9 1987  
 
 
SUNRISE AND SUNSET  
JANUARY 26 2019.......SUNRISE 721 AM EST SUNSET 524 PM EST  
JANUARY 27 2019.......SUNRISE 720 AM EST SUNSET 525 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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