102  
CDUS41 KLWX 162124  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
523 PM EDT TUE APR 16 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 16 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 68 347 PM 91 2002 67 1 53  
MINIMUM 41 522 AM 28 1981 42 -1 41  
AVERAGE 55 55 0 47  
 
PRECIPITATION (IN)  
TODAY 0.00 2.43 1993 0.11 -0.11 0.97  
MONTH TO DATE 0.97 1.88 -0.91 1.62  
SINCE MAR 1 5.52 5.26 0.26 3.41  
SINCE JAN 1 12.98 10.68 2.30 9.80  
 
SNOWFALL (IN)  
TODAY 0.0 T 1988 0.1 -0.1  
MONTH TO DATE 0.0 0.3 -0.3  
SINCE JUL 1 26.5 22.0 4.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 10 11 -1 18  
MONTH TO DATE 156 212 -56 227  
SINCE MAR 1 840 859 -19 1006  
SINCE JUL 1 4345 4449 -104 4357  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 12 4 8 15  
SINCE MAR 1 12 7 5 15  
SINCE JAN 1 12 7 5 20    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 62 500 AM  
LOWEST 29 400 PM  
AVERAGE 46  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 93 2002  
MINIMUM TEMPERATURE (F) 43 27 1983  
 
 
SUNRISE AND SUNSET  
APRIL 16 2019.........SUNRISE 632 AM EDT SUNSET 748 PM EDT  
APRIL 17 2019.........SUNRISE 631 AM EDT SUNSET 749 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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