885  
CDUS41 KLWX 052124  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
524 PM EDT SAT APR 05 2025  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 5 2025  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 77 3:59 PM 88 2023 63 14 56  
MINIMUM 54 1:14 AM 22 1965 40 14 37  
AVERAGE 66 51 15 47  
 
PRECIPITATION (IN)  
TODAY 0.00 1.75 1960 0.10 -0.10 T  
MONTH TO DATE 0.14 0.54 -0.40 1.28  
SINCE MAR 1 1.56 4.04 -2.48 5.17  
SINCE JAN 1 5.98 9.59 -3.61 12.62  
 
SNOWFALL (IN)  
TODAY 0.0 T 1987 0.1 -0.1 0.0  
2007  
2016  
MONTH TO DATE 0.0 0.1 -0.1 T  
SINCE MAR 1 0.0 4.0 -4.0 T  
SINCE JUL 1 15.5 21.0 -5.5 11.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 14 -14 18  
MONTH TO DATE 37 74 -37 77  
SINCE MAR 1 487 721 -234 541  
SINCE JUL 1 3809 4231 -422 3505  
 
COOLING  
TODAY 1 0 1 0  
MONTH TO DATE 1 0 1 0  
SINCE MAR 1 18 2 16 0  
SINCE JAN 1 18 2 16 3    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 12:00 PM  
LOWEST 67 4:00 PM  
AVERAGE 79  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 93 2010  
MINIMUM TEMPERATURE (F) 40 24 1966  
2016  
 
SUNRISE AND SUNSET  
APRIL 5 2025.........SUNRISE 6:48 AM EDT SUNSET 7:38 PM EDT  
APRIL 6 2025.........SUNRISE 6:46 AM EDT SUNSET 7:39 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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