709
CDUS41 KLWX 072121
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
521 PM EDT THU AUG 07 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 7 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 82 3:09 PM 97 2007 87 -5 91
MINIMUM 65 5:34 AM 49 1994 66 -1 76
AVERAGE 74 77 -3 84
PRECIPITATION (IN)
TODAY 0.00 2.33 2000 0.12 -0.12 T
MONTH TO DATE 0.12 0.84 -0.72 0.33
SINCE JUN 1 9.99 9.29 0.70 3.68
SINCE JAN 1 23.91 26.53 -2.62 20.98
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 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 15 13 2 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 9 12 -3 19
MONTH TO DATE 47 84 -37 135
SINCE JUN 1 845 700 145 988
SINCE JAN 1 963 806 157 1171
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 6.0
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 3:00 AM
LOWEST 46 3:00 PM
AVERAGE 70
......................................................
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 2025........SUNRISE 6:16 AM EDT SUNSET 8:14 PM EDT
AUGUST 8 2025........SUNRISE 6:17 AM EDT SUNSET 8:13 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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