428  
CDUS41 KLWX 220524  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
124 AM EDT FRI MAR 22 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 21 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 51 5:00 PM 78 2010 57 -6 64  
MINIMUM 31 11:57 PM 14 1965 35 -4 25  
AVERAGE 41 46 -5 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.69 2019 0.12 -0.12 0.00  
MONTH TO DATE 2.45 2.35 0.10 0.74  
SINCE MAR 1 2.45 2.35 0.10 0.74  
SINCE JAN 1 9.90 7.90 2.00 4.37  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.8 2018 0.1 -0.1 0.0  
MONTH TO DATE T 3.2 -3.2 T  
SINCE MAR 1 T 3.2 -3.2 T  
SINCE JUL 1 11.7 20.2 -8.5 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 19 5 20  
MONTH TO DATE 283 473 -190 448  
SINCE MAR 1 283 473 -190 448  
SINCE JUL 1 3247 3983 -736 3412  
 
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 20 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 48 1:00 AM  
LOWEST 19 6:00 PM  
AVERAGE 34  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 83 1968  
MINIMUM TEMPERATURE (F) 35 12 1988  
 
SUNRISE AND SUNSET  
MARCH 22 2024.........SUNRISE 7:09 AM EDT SUNSET 7:24 PM EDT  
MARCH 23 2024.........SUNRISE 7:08 AM EDT SUNSET 7:25 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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