251
CDUS41 KLWX 282130
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
530 PM EDT FRI AUG 28 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 28 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 88 3:27 PM 99 2024 85 3 81
MINIMUM 69 5:25 AM 44 1986 64 5 50
AVERAGE 79 74 5 66
PRECIPITATION (IN)
TODAY 0.00 1.73 2002 0.11 -0.11 0.00
MONTH TO DATE 4.30 3.20 1.10 0.85
SINCE JUN 1 13.93 11.65 2.28 10.72
SINCE JAN 1 28.85 28.89 -0.04 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 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 1 13 -12 15
SINCE JUL 1 0 0 0 0
COOLING
TODAY 14 9 5 1
MONTH TO DATE 357 308 49 228
SINCE JUN 1 1070 924 146 1026
SINCE JAN 1 1243 1030 213 1144
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 6.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 12:00 AM
LOWEST 63 12:00 PM
AVERAGE 79
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 98 1991
MINIMUM TEMPERATURE (F) 63 38 1982
SUNRISE AND SUNSET
AUGUST 28 2026........SUNRISE 6:35 AM EDT SUNSET 7:46 PM EDT
AUGUST 29 2026........SUNRISE 6:36 AM EDT SUNSET 7:45 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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