724  
CDUS41 KLWX 080522  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1221 AM EST FRI FEB 8 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 7 2019
 
 
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)  
YESTERDAY  
MAXIMUM 54 330 PM 72 2017 45 9 40  
MINIMUM 44 657 AM -1 1995 25 19 26  
AVERAGE 49 35 14 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.53 1965 0.10 -0.10 0.49  
MONTH TO DATE 0.16 0.69 -0.53 1.83  
SINCE DEC 1 9.88 6.33 3.55 4.39  
SINCE JAN 1 4.12 3.37 0.75 3.62  
 
SNOWFALL (IN)  
YESTERDAY 0.0 10.5 1967 0.3 -0.3  
MONTH TO DATE 0.9 2.2 -1.3  
SINCE JUL 1 19.4 13.5 5.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 16 30 -14 32  
MONTH TO DATE 181 215 -34 236  
SINCE DEC 1 1986 2083 -97 2162  
SINCE JUL 1 2944 2999 -55 2956  
 
COOLING  
YESTERDAY 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 10 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 4.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1100 PM  
LOWEST 71 300 PM  
AVERAGE 86  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 71 2017  
MINIMUM TEMPERATURE (F) 25 -6 1967  
 
 
SUNRISE AND SUNSET  
FEBRUARY 8 2019......SUNRISE 709 AM EST SUNSET 539 PM EST  
FEBRUARY 9 2019......SUNRISE 708 AM EST SUNSET 540 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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