351  
CDUS41 KLWX 200530  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
130 AM EDT WED MAR 20 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 19 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 53 4:18 PM 76 2012 56 -3 41  
2022  
MINIMUM 34 3:14 AM 10 1967 34 0 25  
AVERAGE 44 45 -1 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.07 1975 0.12 -0.12 0.00  
MONTH TO DATE 2.45 2.11 0.34 0.74  
SINCE MAR 1 2.45 2.11 0.34 0.74  
SINCE JAN 1 9.90 7.66 2.24 4.37  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.5 1997 0.1 -0.1 0.0  
MONTH TO DATE T 3.0 -3.0 T  
SINCE MAR 1 T 3.0 -3.0 T  
SINCE JUL 1 11.7 20.0 -8.3 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 20 1 32  
MONTH TO DATE 246 434 -188 401  
SINCE MAR 1 246 434 -188 401  
SINCE JUL 1 3210 3944 -734 3365  
 
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 29 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 56 3:00 AM  
LOWEST 25 5:00 PM  
AVERAGE 41  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 80 2020  
MINIMUM TEMPERATURE (F) 35 18 1981  
 
SUNRISE AND SUNSET  
MARCH 20 2024.........SUNRISE 7:12 AM EDT SUNSET 7:22 PM EDT  
MARCH 21 2024.........SUNRISE 7:11 AM EDT SUNSET 7:23 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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