413  
CDUS41 KLWX 250532  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
132 AM EDT TUE JUN 25 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 24 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 89 4:07 PM 97 2010 86 3 86  
MINIMUM 64 11:59 PM 46 1979 64 0 69  
AVERAGE 77 75 2 78  
 
PRECIPITATION (IN)  
YESTERDAY T 1.76 1994 0.14 -0.14 0.23  
MONTH TO DATE 0.28 3.45 -3.17 1.61  
SINCE JUN 1 0.28 3.45 -3.17 1.61  
SINCE JAN 1 17.58 20.69 -3.11 11.59  
 
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 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 11 -11 5  
SINCE JUN 1 0 11 -11 5  
SINCE JUL 1 3691 4603 -912 3862  
 
COOLING  
YESTERDAY 12 10 2 13  
MONTH TO DATE 260 174 86 113  
SINCE JUN 1 260 174 86 113  
SINCE JAN 1 443 280 163 187    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 12.0  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 5:00 AM  
LOWEST 29 7:00 PM  
AVERAGE 53  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 97 1966  
MINIMUM TEMPERATURE (F) 65 44 1979  
 
SUNRISE AND SUNSET  
JUNE 25 2024..........SUNRISE 5:46 AM EDT SUNSET 8:39 PM EDT  
JUNE 26 2024..........SUNRISE 5:46 AM EDT SUNSET 8:39 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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