916  
CDUS41 KLWX 230554  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
154 AM EDT THU MAR 23 2017  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 22 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1962 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 59 127 AM 83 1968 58 1 62  
MINIMUM 33 1127 PM 12 1988 35 -2 26  
AVERAGE 46 46 0 44  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.93 1977 0.12 -0.12 0.00  
MONTH TO DATE 1.86 2.28 -0.42 1.04  
SINCE MAR 1 1.86 2.28 -0.42 1.04  
SINCE JAN 1 5.30 7.70 -2.40 9.30  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.2 1992 0.1 -0.1  
MONTH TO DATE 5.7 2.4 3.3  
SINCE JUL 1 7.3 21.3 -14.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 19 0 21  
MONTH TO DATE 529 493 36 356  
SINCE MAR 1 529 493 36 356  
SINCE JUL 1 3422 4083 -661 3447  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 5  
SINCE MAR 1 0 0 0 5  
SINCE JAN 1 0 0 0 5    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 16.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 54 1200 AM  
LOWEST 19 400 PM  
AVERAGE 37  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 83 2012  
1994  
MINIMUM TEMPERATURE (F) 35 17 1969  
 
 
SUNRISE AND SUNSET  
MARCH 23 2017.........SUNRISE 708 AM EDT SUNSET 725 PM EDT  
MARCH 24 2017.........SUNRISE 707 AM EDT SUNSET 726 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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