440  
CDUS41 KLWX 122126  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
425 PM EST TUE FEB 12 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 12 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 38 349 PM 74 1999 46 -8 62  
MINIMUM 32 115 AM 3 1964 25 7 34  
AVERAGE 35 36 -1 48  
 
PRECIPITATION (IN)  
TODAY 0.71 1.77 1985 0.09 0.62 0.02  
MONTH TO DATE 1.40 1.18 0.22 3.16  
SINCE DEC 1 11.12 6.82 4.30 5.72  
SINCE JAN 1 5.36 3.86 1.50 4.95  
 
SNOWFALL (IN)  
TODAY 0.0 5.1 1979 0.3 -0.3  
MONTH TO DATE 1.7 3.7 -2.0  
SINCE JUL 1 20.2 15.0 5.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 30 29 1 17  
MONTH TO DATE 338 364 -26 357  
SINCE DEC 1 2143 2232 -89 2283  
SINCE JUL 1 3101 3148 -47 3077  
 
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 16 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 5.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 900 AM  
LOWEST 89 1200 AM  
AVERAGE 93  
   
......................................................
 
 
 
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 2019......SUNRISE 705 AM EST SUNSET 544 PM EST  
FEBRUARY 13 2019......SUNRISE 704 AM EST SUNSET 545 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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