298
CDUS41 KLWX 302122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT SUN AUG 30 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 30 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 87 3:59 PM 99 1991 85 2 77
MINIMUM 70 2:18 AM 41 1986 63 7 51
AVERAGE 79 74 5 64
PRECIPITATION (IN)
TODAY 0.00 1.21 1978 0.11 -0.11 0.00
MONTH TO DATE 4.30 3.42 0.88 0.85
SINCE JUN 1 13.93 11.87 2.06 10.72
SINCE JAN 1 28.85 29.11 -0.26 24.64
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 1
MONTH TO DATE 0 0 0 1
SINCE JUN 1 1 13 -12 16
SINCE JUL 1 0 0 0 1
COOLING
TODAY 14 9 5 0
MONTH TO DATE 381 326 55 232
SINCE JUN 1 1094 942 152 1030
SINCE JAN 1 1267 1048 219 1148
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 7.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 7:00 AM
LOWEST 57 3:00 PM
AVERAGE 75
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 98 1991
MINIMUM TEMPERATURE (F) 63 43 1976
SUNRISE AND SUNSET
AUGUST 30 2026........SUNRISE 6:37 AM EDT SUNSET 7:43 PM EDT
AUGUST 31 2026........SUNRISE 6:38 AM EDT SUNSET 7:42 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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