476  
CDUS41 KLWX 100525  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1225 AM EST SUN MAR 10 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 9 2024
 
 
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)  
YESTERDAY  
MAXIMUM 50 3:49 PM 82 2016 52 -2 55  
MINIMUM 43 9:30 AM 14 1996 32 11 35  
AVERAGE 47 42 5 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.99R 0.83 1999 0.11 0.88 0.00  
MONTH TO DATE 2.44 0.95 1.49 0.57  
SINCE MAR 1 2.44 0.95 1.49 0.57  
SINCE JAN 1 9.89 6.50 3.39 4.20  
 
SNOWFALL (IN)  
YESTERDAY 0.0 8.9 1999 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.6 -1.6 0.0  
SINCE MAR 1 0.0 1.6 -1.6 0.0  
SINCE JUL 1 11.7 18.6 -6.9 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 18 23 -5 20  
MONTH TO DATE 124 219 -95 170  
SINCE MAR 1 124 219 -95 170  
SINCE JUL 1 3088 3729 -641 3134  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 3 0 3 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 PM  
LOWEST 73 1:00 AM  
AVERAGE 83  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 52 80 2016  
MINIMUM TEMPERATURE (F) 32 7 1996  
 
SUNRISE AND SUNSET  
MARCH 10 2024.........SUNRISE 7:28 AM EDT SUNSET 7:12 PM EDT  
MARCH 11 2024.........SUNRISE 7:26 AM EDT SUNSET 7:13 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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