971  
CDUS41 KLWX 060523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1222 AM EST WED FEB 6 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 5 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 72 333 PM 73 1991 44 28 36  
MINIMUM 33 142 AM -10 1996 25 8 22  
AVERAGE 53 34 19 29  
 
PRECIPITATION (IN)  
YESTERDAY T 1.47 2010 0.09 -0.09 0.00  
MONTH TO DATE 0.07 0.49 -0.42 1.34  
SINCE DEC 1 9.79 6.13 3.66 3.90  
SINCE JAN 1 4.03 3.17 0.86 3.13  
 
SNOWFALL (IN)  
YESTERDAY MM 14.9 2010 0.3 MM  
MONTH TO DATE 0.9 1.6 -0.7  
SINCE JUL 1 19.4 12.9 6.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 31 -19 36  
MONTH TO DATE 147 155 -8 170  
SINCE DEC 1 1952 2023 -71 2096  
SINCE JUL 1 2910 2939 -29 2890  
 
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 14 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 2.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 200 AM  
LOWEST 48 1200 PM  
AVERAGE 74  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 71 2008  
MINIMUM TEMPERATURE (F) 25 -9 1996  
 
 
SUNRISE AND SUNSET  
FEBRUARY 6 2019......SUNRISE 711 AM EST SUNSET 537 PM EST  
FEBRUARY 7 2019......SUNRISE 710 AM EST SUNSET 538 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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