872  
CDUS41 KLWX 292129  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
529 PM EDT MON APR 29 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 29 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 91R 3:59 PM 89 2017 71 20 67  
MINIMUM 57 5:37 AM 32 1987 48 9 51  
AVERAGE 74 60 14 59  
 
PRECIPITATION (IN)  
TODAY 0.00 1.19 2014 0.13 -0.13 0.03  
MONTH TO DATE 1.60 3.34 -1.74 2.27  
SINCE MAR 1 5.49 6.84 -1.35 3.84  
SINCE JAN 1 12.94 12.39 0.55 7.47  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 2001 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 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 7 -7 6  
MONTH TO DATE 215 314 -99 207  
SINCE MAR 1 679 961 -282 777  
SINCE JUL 1 3643 4471 -828 3741  
 
COOLING  
TODAY 9 1 8 0  
MONTH TO DATE 34 18 16 44  
SINCE MAR 1 34 20 14 45  
SINCE JAN 1 37 20 17 45    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 4.5  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 6:00 AM  
LOWEST 32 4:00 PM  
AVERAGE 61  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 86 1974  
2007  
2017  
MINIMUM TEMPERATURE (F) 48 29 1977  
 
SUNRISE AND SUNSET  
APRIL 29 2024.........SUNRISE 6:14 AM EDT SUNSET 8:01 PM EDT  
APRIL 30 2024.........SUNRISE 6:12 AM EDT SUNSET 8:02 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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