641  
CDUS41 KLWX 080525  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
125 AM EDT SAT JUN 08 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 7 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 86 3:45 PM 96 1999 81 5 79  
MINIMUM 59 11:49 PM 45 1977 60 -1 54  
AVERAGE 73 70 3 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.88 1989 0.15 -0.14 0.00  
MONTH TO DATE 0.20 1.04 -0.84 T  
SINCE JUN 1 0.20 1.04 -0.84 T  
SINCE JAN 1 17.50 18.28 -0.78 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 1 -1 0  
MONTH TO DATE 0 9 -9 0  
SINCE JUN 1 0 9 -9 0  
SINCE JUL 1 3691 4601 -910 3857  
 
COOLING  
YESTERDAY 8 6 2 2  
MONTH TO DATE 61 38 23 28  
SINCE JUN 1 61 38 23 28  
SINCE JAN 1 244 144 100 102    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 8.5  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 5:00 AM  
LOWEST 29 2:00 PM  
AVERAGE 54  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 2007  
MINIMUM TEMPERATURE (F) 60 36 1977  
 
SUNRISE AND SUNSET  
JUNE 8 2024..........SUNRISE 5:44 AM EDT SUNSET 8:34 PM EDT  
JUNE 9 2024..........SUNRISE 5:44 AM EDT SUNSET 8:35 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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