185  
CDUS41 KLWX 070523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1223 AM EST THU FEB 7 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 6 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 58 342 PM 71 2008 45 13 39  
MINIMUM 36 732 AM -9 1996 25 11 22  
AVERAGE 47 35 12 31  
 
PRECIPITATION (IN)  
YESTERDAY 0.09 1.98 2010 0.10 -0.01 0.00  
MONTH TO DATE 0.16 0.59 -0.43 1.34  
SINCE DEC 1 9.88 6.23 3.65 3.90  
SINCE JAN 1 4.12 3.27 0.85 3.13  
 
SNOWFALL (IN)  
YESTERDAY 0.0 17.5 2010 0.3 -0.3  
MONTH TO DATE 0.9 1.9 -1.0  
SINCE JUL 1 19.4 13.2 6.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 18 30 -12 34  
MONTH TO DATE 165 185 -20 204  
SINCE DEC 1 1970 2053 -83 2130  
SINCE JUL 1 2928 2969 -41 2924  
 
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 13 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 4.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 61 1200 PM  
AVERAGE 81  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 72 2017  
MINIMUM TEMPERATURE (F) 25 -1 1995  
 
 
SUNRISE AND SUNSET  
FEBRUARY 7 2019......SUNRISE 710 AM EST SUNSET 538 PM EST  
FEBRUARY 8 2019......SUNRISE 709 AM EST SUNSET 539 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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