625  
CDUS41 KLWX 192122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
422 PM EST SAT JAN 19 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 19 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 37 359 PM 65 1972 42 -5 54  
MINIMUM 30 1209 AM -6 1994 24 6 17  
AVERAGE 34 33 1 36  
 
PRECIPITATION (IN)  
TODAY T 1.36 1987 0.09 -0.09 0.00  
MONTH TO DATE 1.27 1.59 -0.32 1.55  
SINCE DEC 1 7.03 4.55 2.48 2.32  
SINCE JAN 1 1.27 1.59 -0.32 1.55  
 
SNOWFALL (IN)  
TODAY MM 4.3 1978 0.3 MM  
MONTH TO DATE 12.4 4.0 8.4  
SINCE JUL 1 15.4 8.0 7.4  
SNOW DEPTH 2  
 
DEGREE DAYS  
HEATING  
TODAY 31 32 -1 29  
MONTH TO DATE 556 608 -52 712  
SINCE DEC 1 1360 1490 -130 1635  
SINCE JUL 1 2318 2406 -88 2429  
 
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 13 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 3.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 76 1100 AM  
AVERAGE 88  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 42 63 2006  
MINIMUM TEMPERATURE (F) 24 -7 1985  
 
 
SUNRISE AND SUNSET  
JANUARY 19 2019.......SUNRISE 725 AM EST SUNSET 516 PM EST  
JANUARY 20 2019.......SUNRISE 725 AM EST SUNSET 517 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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