606  
CDUS41 KLWX 122125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
525 PM EDT FRI APR 12 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 12 2019
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 68 1055 AM 87 1977 66 2 77  
MINIMUM 49 344 AM 23 1982 41 8 43  
AVERAGE 59 53 6 60  
 
PRECIPITATION (IN)  
TODAY 0.12 1.45 2004 0.11 0.01 T  
MONTH TO DATE 0.50 1.44 -0.94 0.15  
SINCE MAR 1 5.05 4.82 0.23 1.94  
SINCE JAN 1 12.51 10.24 2.27 8.33  
 
SNOWFALL (IN)  
TODAY 0.0 1.0 1973 0.0 0.0  
MONTH TO DATE 0.0 0.2 -0.2  
SINCE JUL 1 26.5 21.9 4.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 6 12 -6 5  
MONTH TO DATE 140 166 -26 202  
SINCE MAR 1 824 813 11 981  
SINCE JUL 1 4329 4403 -74 4332  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 8 0 8 0  
SINCE MAR 1 8 3 5 0  
SINCE JAN 1 8 3 5 5    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 5.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 100 PM  
LOWEST 63 1100 AM  
AVERAGE 78  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 87 1977  
MINIMUM TEMPERATURE (F) 41 24 1990  
 
 
SUNRISE AND SUNSET  
APRIL 12 2019.........SUNRISE 638 AM EDT SUNSET 744 PM EDT  
APRIL 13 2019.........SUNRISE 637 AM EDT SUNSET 745 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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