000  
CDUS41 KLWX 120522  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
122 AM EDT WED MAR 12 2025  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 11 2025  
 
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)  
YESTERDAY  
MAXIMUM 73 4:44 PM 79 2021 53 20 56  
MINIMUM 30 6:37 AM 13 1996 32 -2 37  
AVERAGE 52 42 10 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.82 1963 0.11 -0.11 0.00  
MONTH TO DATE 0.48 1.17 -0.69 2.44  
SINCE MAR 1 0.48 1.17 -0.69 2.44  
SINCE JAN 1 4.90 6.72 -1.82 9.89  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.0 1963 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.9 -1.9 T  
SINCE MAR 1 0.0 1.9 -1.9 T  
SINCE JUL 1 15.5 18.9 -3.4 11.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 23 -10 18  
MONTH TO DATE 223 265 -42 164  
SINCE MAR 1 223 265 -42 164  
SINCE JUL 1 3545 3775 -230 3128  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 3    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 6:00 AM  
LOWEST 21 3:00 PM  
AVERAGE 53  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 89 1990  
MINIMUM TEMPERATURE (F) 32 18 1969  
1984  
1998  
 
SUNRISE AND SUNSET  
MARCH 12 2025.........SUNRISE 7:25 AM EDT SUNSET 7:14 PM EDT  
MARCH 13 2025.........SUNRISE 7:24 AM EDT SUNSET 7:15 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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