307  
CDUS41 KLWX 312124  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
524 PM EDT SAT AUG 31 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 31 2024  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 83 3:33 PM 98 1991 84 -1 84  
MINIMUM 71 7:27 AM 43 1976 63 8 66  
AVERAGE 77 74 3 75  
 
PRECIPITATION (IN)  
TODAY 0.00 3.21 1975 0.11 -0.11 0.00  
MONTH TO DATE 4.99 3.53 1.46 1.85  
SINCE JUN 1 8.34 11.98 -3.64 9.24  
SINCE JAN 1 25.64 29.22 -3.58 19.22  
 
SNOWFALL (IN)  
TODAY 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 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 12 9 3 10  
MONTH TO DATE 379 334 45 386  
SINCE JUN 1 1232 950 282 1041  
SINCE JAN 1 1415 1056 359 1115    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91 7:00 AM  
LOWEST 69 1:00 PM  
AVERAGE 80  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 98 1962  
1980  
MINIMUM TEMPERATURE (F) 63 49 1970  
1976  
 
SUNRISE AND SUNSET  
AUGUST 31 2024........SUNRISE 6:38 AM EDT SUNSET 7:41 PM EDT  
SEPTEMBER 1 2024.....SUNRISE 6:39 AM EDT SUNSET 7:39 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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