562  
CDUS41 KLWX 162123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
523 PM EDT TUE APR 16 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 16 2024  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 78 3:59 PM 91 2002 67 11 82  
MINIMUM 48 5:43 AM 28 1981 43 5 54  
AVERAGE 63 55 8 68  
 
PRECIPITATION (IN)  
TODAY 0.00 2.43 1993 0.11 -0.11 T  
MONTH TO DATE 1.43 1.76 -0.33 0.36  
SINCE MAR 1 5.32 5.26 0.06 1.93  
SINCE JAN 1 12.77 10.81 1.96 5.56  
 
SNOWFALL (IN)  
TODAY 0.0 T 1988 0.0 0.0 0.0  
MONTH TO DATE T 0.1 -0.1 0.0  
SINCE MAR 1 T 4.0 -4.0 T  
SINCE JUL 1 11.7 21.0 -9.3 0.4  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 2 10 -8 0  
MONTH TO DATE 134 206 -72 104  
SINCE MAR 1 598 853 -255 674  
SINCE JUL 1 3562 4363 -801 3638  
 
COOLING  
TODAY 0 1 -1 3  
MONTH TO DATE 16 5 11 36  
SINCE MAR 1 16 7 9 37  
SINCE JAN 1 19 7 12 37    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 61 6:00 AM  
LOWEST 27 12:00 PM  
AVERAGE 44  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 93 2002  
MINIMUM TEMPERATURE (F) 44 27 1983  
 
SUNRISE AND SUNSET  
APRIL 16 2024.........SUNRISE 6:31 AM EDT SUNSET 7:48 PM EDT  
APRIL 17 2024.........SUNRISE 6:30 AM EDT SUNSET 7:49 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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