357  
CDUS41 KLWX 150533  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
133 AM EDT MON APR 15 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 14 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 76 321 PM 87 1960 66 10 84  
MINIMUM 56 431 AM 20 1975 42 14 62  
AVERAGE 66 54 12 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.07 2.13 1970 0.11 -0.04 0.00  
MONTH TO DATE 0.92 1.66 -0.74 0.15  
SINCE MAR 1 5.47 5.04 0.43 1.94  
SINCE JAN 1 12.93 10.46 2.47 8.33  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2002 0.0 0.0  
2001  
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 140 190 -50 202  
SINCE MAR 1 824 837 -13 981  
SINCE JUL 1 4329 4427 -98 4332  
 
COOLING  
YESTERDAY 1 1 0 8  
MONTH TO DATE 12 2 10 15  
SINCE MAR 1 12 5 7 15  
SINCE JAN 1 12 5 7 20    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 10.4  
 
 
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 100 300 AM  
LOWEST 64 300 PM  
AVERAGE 82  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 87 1967  
MINIMUM TEMPERATURE (F) 42 28 1997  
1971  
 
 
SUNRISE AND SUNSET  
APRIL 15 2019.........SUNRISE 634 AM EDT SUNSET 747 PM EDT  
APRIL 16 2019.........SUNRISE 632 AM EDT SUNSET 748 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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