548  
CDUS41 KLWX 142129  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
529 PM EDT WED AUG 14 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 14 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 85 3:59 PM 100 1985 87 -2 92  
MINIMUM 62 4:24 AM 49 1983 66 -4 66  
AVERAGE 74 76 -2 79  
 
PRECIPITATION (IN)  
TODAY 0.00 1.12 2008 0.11 -0.11 0.13  
MONTH TO DATE 1.97 1.63 0.34 1.37  
SINCE JUN 1 5.32 10.08 -4.76 8.76  
SINCE JAN 1 22.62 27.32 -4.70 18.74  
 
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 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 13 -13 5  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 9 11 -2 14  
MONTH TO DATE 212 164 48 169  
SINCE JUN 1 1065 780 285 824  
SINCE JAN 1 1248 886 362 898    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 5:00 AM  
LOWEST 39 4:00 PM  
AVERAGE 63  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 102 1988  
MINIMUM TEMPERATURE (F) 66 45 1964  
 
SUNRISE AND SUNSET  
AUGUST 14 2024........SUNRISE 6:23 AM EDT SUNSET 8:05 PM EDT  
AUGUST 15 2024........SUNRISE 6:24 AM EDT SUNSET 8:04 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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