184  
CDUS41 KLWX 090526  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1225 AM EST SAT FEB 9 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 8 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 56 1201 PM 71 2017 45 11 36  
MINIMUM 33 1159 PM -6 1967 25 8 21  
AVERAGE 45 35 10 29  
 
PRECIPITATION (IN)  
YESTERDAY T 0.84 1997 0.10 -0.10 0.00  
MONTH TO DATE 0.16 0.79 -0.63 1.83  
SINCE DEC 1 9.88 6.43 3.45 4.39  
SINCE JAN 1 4.12 3.47 0.65 3.62  
 
SNOWFALL (IN)  
YESTERDAY MM 6.8 1997 0.3 MM  
MONTH TO DATE 0.9 2.5 -1.6  
SINCE JUL 1 19.4 13.8 5.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 30 -10 36  
MONTH TO DATE 201 245 -44 272  
SINCE DEC 1 2006 2113 -107 2198  
SINCE JUL 1 2964 3029 -65 2992  
 
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 35 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 14.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 29 200 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 69 2001  
MINIMUM TEMPERATURE (F) 25 -5 1967  
 
 
SUNRISE AND SUNSET  
FEBRUARY 9 2019......SUNRISE 708 AM EST SUNSET 540 PM EST  
FEBRUARY 10 2019......SUNRISE 707 AM EST SUNSET 541 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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