488  
CDUS41 KLWX 140529  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
129 AM EDT SUN APR 14 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 13 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 75 151 PM 87 1977 66 9 86  
MINIMUM 61 1159 PM 24 1990 41 20 58  
AVERAGE 68 54 14 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.20 0.93 1972 0.11 0.09 0.00  
MONTH TO DATE 0.85 1.55 -0.70 0.15  
SINCE MAR 1 5.40 4.93 0.47 1.94  
SINCE JAN 1 12.86 10.35 2.51 8.33  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1966 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  
YESTERDAY 0 12 -12 0  
MONTH TO DATE 140 178 -38 202  
SINCE MAR 1 824 825 -1 981  
SINCE JUL 1 4329 4415 -86 4332  
 
COOLING  
YESTERDAY 3 1 2 7  
MONTH TO DATE 11 1 10 7  
SINCE MAR 1 11 4 7 7  
SINCE JAN 1 11 4 7 12    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 4.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 700 AM  
LOWEST 46 1200 PM  
AVERAGE 73  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 87 1960  
MINIMUM TEMPERATURE (F) 42 20 1975  
 
 
SUNRISE AND SUNSET  
APRIL 14 2019.........SUNRISE 635 AM EDT SUNSET 746 PM EDT  
APRIL 15 2019.........SUNRISE 634 AM EDT SUNSET 747 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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