285  
CDUS41 KLWX 012121  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
521 PM EDT SAT JUN 01 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 1 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 84 2:59 PM 95 2011 79 5 86  
MINIMUM 47 4:42 AM 39 1984 58 -11 50  
AVERAGE 66 68 -2 68  
 
PRECIPITATION (IN)  
TODAY 0.00 1.22 1969 0.15 -0.15 0.00  
MONTH TO DATE 0.00 0.15 -0.15 0.00  
SINCE JUN 1 0.00 0.15 -0.15 0.00  
SINCE JAN 1 17.30 17.39 -0.09 9.98  
 
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 11.7 21.0 -9.3 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 0 2 -2 0  
SINCE JUN 1 0 2 -2 0  
SINCE JUL 1 3691 4594 -903 3857  
 
COOLING  
TODAY 1 5 -4 3  
MONTH TO DATE 1 5 -4 3  
SINCE JUN 1 1 5 -4 3  
SINCE JAN 1 184 111 73 77    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 28 1:00 PM  
AVERAGE 59  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 93 2023  
MINIMUM TEMPERATURE (F) 58 41 1993  
 
SUNRISE AND SUNSET  
JUNE 1 2024..........SUNRISE 5:46 AM EDT SUNSET 8:30 PM EDT  
JUNE 2 2024..........SUNRISE 5:46 AM EDT SUNSET 8:31 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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