749  
CDUS41 KLWX 150523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
123 AM EDT FRI MAR 15 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 14 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 80 3:27 PM 88 1990 54 26 43  
MINIMUM 40 4:38 AM 15 1968 33 7 31  
1993  
AVERAGE 60 43 17 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.99 1999 0.12 -0.12 0.00  
MONTH TO DATE 2.44 1.51 0.93 0.73  
SINCE MAR 1 2.44 1.51 0.93 0.73  
SINCE JAN 1 9.89 7.06 2.83 4.36  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.1 2017 0.2 -0.2 0.0  
MONTH TO DATE T 2.4 -2.4 T  
SINCE MAR 1 T 2.4 -2.4 T  
SINCE JUL 1 11.7 19.4 -7.7 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 22 -17 28  
MONTH TO DATE 188 331 -143 298  
SINCE MAR 1 188 331 -143 298  
SINCE JUL 1 3152 3841 -689 3262  
 
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 16 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 3.8  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 7:00 AM  
LOWEST 21 3:00 PM  
AVERAGE 50  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 84 2012  
MINIMUM TEMPERATURE (F) 33 -1 1993  
 
SUNRISE AND SUNSET  
MARCH 15 2024.........SUNRISE 7:20 AM EDT SUNSET 7:17 PM EDT  
MARCH 16 2024.........SUNRISE 7:19 AM EDT SUNSET 7:18 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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