033  
CDUS41 KLWX 072125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
525 PM EDT MON AUG 07 2023  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 7 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM MM MM 97 2007 87 MM 92  
MINIMUM MM MM 49 1994 66 MM 72  
AVERAGE MM 77 MM 82  
 
PRECIPITATION (IN)  
TODAY MM 2.33 2000 0.12 MM 0.00  
MONTH TO DATE 0.26 0.84 -0.58 0.78  
SINCE JUN 1 7.65 9.29 -1.64 8.76  
SINCE JAN 1 17.63 26.53 -8.90 25.98  
 
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 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY MM 0 MM 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 5 13 -8 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY MM 12 MM 17  
MONTH TO DATE 58 84 -26 113  
SINCE JUN 1 713 700 13 766  
SINCE JAN 1 787 806 -19 895    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 1:00 AM  
LOWEST 56 3:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 101 2007  
MINIMUM TEMPERATURE (F) 66 49 1989  
 
SUNRISE AND SUNSET  
AUGUST 7 2023........SUNRISE 6:16 AM EDT SUNSET 8:15 PM EDT  
AUGUST 8 2023........SUNRISE 6:17 AM EDT SUNSET 8:14 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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