351  
CDUS41 KLWX 110531  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
131 AM EDT TUE JUN 11 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 10 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 81 12:52 PM 99 1964 82 -1 86  
MINIMUM 56 3:37 AM 43 1988 60 -4 50  
AVERAGE 69 71 -2 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 1.16 2009 0.15 -0.13 0.00  
MONTH TO DATE 0.27 1.48 -1.21 T  
SINCE JUN 1 0.27 1.48 -1.21 T  
SINCE JAN 1 17.57 18.72 -1.15 9.98  
 
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 2  
SINCE JUN 1 0 11 -11 2  
SINCE JUL 1 3691 4603 -912 3859  
 
COOLING  
YESTERDAY 4 6 -2 3  
MONTH TO DATE 80 56 24 34  
SINCE JUN 1 80 56 24 34  
SINCE JAN 1 263 162 101 108    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 6.7  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 9:00 PM  
LOWEST 34 1:00 PM  
AVERAGE 56  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 95 2016  
MINIMUM TEMPERATURE (F) 61 40 1972  
 
SUNRISE AND SUNSET  
JUNE 11 2024..........SUNRISE 5:44 AM EDT SUNSET 8:36 PM EDT  
JUNE 12 2024..........SUNRISE 5:44 AM EDT SUNSET 8:36 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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