063  
CDUS41 KLWX 260528  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
128 AM EDT MON AUG 26 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 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 90 3:46 PM 97 1998 85 5 97  
2007  
2023  
MINIMUM 58 5:54 AM 47 1971 64 -6 50  
AVERAGE 74 75 -1 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.03 1999 0.13 -0.13 T  
MONTH TO DATE 3.05 2.85 0.20 1.84  
SINCE JUN 1 6.40 11.30 -4.90 9.23  
SINCE JAN 1 23.70 28.54 -4.84 19.21  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 MM  
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 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 0  
SINCE JUN 1 2 13 -11 5  
SINCE JUL 1 2 0 2 0  
 
COOLING  
YESTERDAY 9 10 -1 20  
MONTH TO DATE 292 279 13 301  
SINCE JUN 1 1145 895 250 956  
SINCE JAN 1 1328 1001 327 1030    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 6:00 AM  
LOWEST 39 5:00 PM  
AVERAGE 65  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 95 1993  
1998  
2016  
MINIMUM TEMPERATURE (F) 64 48 1977  
 
SUNRISE AND SUNSET  
AUGUST 26 2024........SUNRISE 6:34 AM EDT SUNSET 7:48 PM EDT  
AUGUST 27 2024........SUNRISE 6:35 AM EDT SUNSET 7:47 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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