168  
CDUS41 KLWX 070526  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
126 AM EDT WED JUN 07 2023  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 6 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 3:40 PM 93 2021 80 3 81  
MINIMUM 50 5:14 AM 39 1976 59 -9 54  
AVERAGE 67 70 -3 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.83 1983 0.15 -0.15 0.00  
MONTH TO DATE T 0.89 -0.89 0.42  
SINCE JUN 1 T 0.89 -0.89 0.42  
SINCE JAN 1 9.98 18.13 -8.15 17.64  
 
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 0.4 21.0 -20.6 15.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 8 -8 0  
SINCE JUN 1 0 8 -8 0  
SINCE JUL 1 3847 4600 -753 4023  
 
COOLING  
YESTERDAY 2 6 -4 3  
MONTH TO DATE 26 32 -6 43  
SINCE JUN 1 26 32 -6 43  
SINCE JAN 1 100 138 -38 172    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 5:00 AM  
LOWEST 27 2:00 PM  
AVERAGE 57  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 96 1999  
MINIMUM TEMPERATURE (F) 60 45 1977  
 
SUNRISE AND SUNSET  
JUNE 7 2023..........SUNRISE 5:44 AM EDT SUNSET 8:33 PM EDT  
JUNE 8 2023..........SUNRISE 5:44 AM EDT SUNSET 8:34 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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