968  
CDUS41 KLWX 060529  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
129 AM EDT SAT APR 6 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 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 51 238 AM 86 2010 63 -12 54  
MINIMUM 44 1159 PM 22 1965 39 5 32  
AVERAGE 48 51 -3 43  
 
PRECIPITATION (IN)  
YESTERDAY 0.35 1.75 1960 0.11 0.24 0.00  
MONTH TO DATE 0.35 0.60 -0.25 0.15  
SINCE MAR 1 4.90 3.98 0.92 1.94  
SINCE JAN 1 12.36 9.40 2.96 8.33  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 2016 0.0 0.0  
2007  
1987  
MONTH TO DATE 0.0 0.1 -0.1  
SINCE JUL 1 26.5 21.8 4.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 14 3 22  
MONTH TO DATE 99 75 24 80  
SINCE MAR 1 783 722 61 859  
SINCE JUL 1 4288 4312 -24 4210  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 3 -3 0  
SINCE JAN 1 0 3 -3 5    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 6.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 1100 PM  
LOWEST 50 200 AM  
AVERAGE 71  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 93 2010  
MINIMUM TEMPERATURE (F) 39 24 2016  
1966  
 
 
SUNRISE AND SUNSET  
APRIL 6 2019.........SUNRISE 647 AM EDT SUNSET 738 PM EDT  
APRIL 7 2019.........SUNRISE 646 AM EDT SUNSET 739 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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