262  
CDUS41 KLWX 182128  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
528 PM EDT TUE MAR 18 2025  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 18 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 67 3:59 PM 80 1989 55 12 51  
MINIMUM 39 6:41 AM 13 1976 34 5 35  
AVERAGE 53 45 8 43  
 
PRECIPITATION (IN)  
TODAY 0.00 1.16 1998 0.12 -0.12 0.00  
MONTH TO DATE 0.64 1.99 -1.35 2.45  
SINCE MAR 1 0.64 1.99 -1.35 2.45  
SINCE JAN 1 5.06 7.54 -2.48 9.90  
 
SNOWFALL (IN)  
TODAY 0.0 1.5 1994 0.1 -0.1 0.0  
MONTH TO DATE 0.0 2.9 -2.9 T  
SINCE MAR 1 0.0 2.9 -2.9 T  
SINCE JUL 1 15.5 19.9 -4.4 11.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 12 20 -8 22  
MONTH TO DATE 312 414 -102 225  
SINCE MAR 1 312 414 -102 225  
SINCE JUL 1 3634 3924 -290 3189  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE MAR 1 1 0 1 0  
SINCE JAN 1 1 0 1 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.0  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 48 12:00 AM  
LOWEST 18 3:00 PM  
AVERAGE 33  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 76 2012  
2022  
MINIMUM TEMPERATURE (F) 34 10 1967  
 
SUNRISE AND SUNSET  
MARCH 18 2025.........SUNRISE 7:16 AM EDT SUNSET 7:20 PM EDT  
MARCH 19 2025.........SUNRISE 7:14 AM EDT SUNSET 7:21 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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