791  
CDUS41 KLWX 112122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
522 PM EDT FRI APR 11 2025  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 11 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 49 12:16 AM 87 1977 65 -16 71  
MINIMUM 45 7:02 AM 25 1960 42 3 64  
1970  
1971  
AVERAGE 47 54 -7 68  
 
PRECIPITATION (IN)  
TODAY 0.23 0.74 2009 0.11 0.12 0.05  
MONTH TO DATE 0.84 1.22 -0.38 1.33  
SINCE MAR 1 2.26 4.72 -2.46 5.22  
SINCE JAN 1 6.68 10.27 -3.59 12.67  
 
SNOWFALL (IN)  
TODAY 0.0 T 1973 0.0 0.0 0.0  
1986  
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 18 12 6 0  
MONTH TO DATE 144 151 -7 119  
SINCE MAR 1 594 798 -204 583  
SINCE JUL 1 3916 4308 -392 3547  
 
COOLING  
TODAY 0 0 0 3  
MONTH TO DATE 2 0 2 9  
SINCE MAR 1 19 2 17 9  
SINCE JAN 1 19 2 17 12    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 3:00 PM  
LOWEST 77 12:00 AM  
AVERAGE 85  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 87 1977  
MINIMUM TEMPERATURE (F) 42 23 1982  
 
SUNRISE AND SUNSET  
APRIL 11 2025.........SUNRISE 6:39 AM EDT SUNSET 7:43 PM EDT  
APRIL 12 2025.........SUNRISE 6:37 AM EDT SUNSET 7:44 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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