990  
CDUS41 KLWX 260529  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
129 AM EDT WED JUN 26 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 25 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 92 2:08 PM 97 1966 86 6 90  
MINIMUM 57 4:48 AM 44 1979 65 -8 65  
AVERAGE 75 75 0 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 5.94 2006 0.14 -0.14 T  
MONTH TO DATE 0.28 3.59 -3.31 1.61  
SINCE JUN 1 0.28 3.59 -3.31 1.61  
SINCE JAN 1 17.58 20.83 -3.25 11.59  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 11.7 21.0 -9.3 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 11 -11 5  
SINCE JUN 1 0 11 -11 5  
SINCE JUL 1 3691 4603 -912 3862  
 
COOLING  
YESTERDAY 10 10 0 13  
MONTH TO DATE 270 184 86 126  
SINCE JUN 1 270 184 86 126  
SINCE JAN 1 453 290 163 200    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 5:00 AM  
LOWEST 28 1:00 PM  
AVERAGE 56  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 95 1998  
MINIMUM TEMPERATURE (F) 65 42 1979  
 
SUNRISE AND SUNSET  
JUNE 26 2024..........SUNRISE 5:46 AM EDT SUNSET 8:39 PM EDT  
JUNE 27 2024..........SUNRISE 5:47 AM EDT SUNSET 8:39 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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