322
CDUS41 KLWX 280628
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 AM EDT FRI AUG 28 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 27 2026
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)
YESTERDAY
MAXIMUM 89 2:11 PM 100 1987 85 4 79
MINIMUM 71 5:00 AM 46 1969 64 7 51
AVERAGE 80 74 6 65
PRECIPITATION (IN)
YESTERDAY 0.01 1.98 1971 0.12 -0.11 0.00
MONTH TO DATE 4.30 3.09 1.21 0.85
SINCE JUN 1 13.93 11.54 2.39 10.72
SINCE JAN 1 28.85 28.78 0.07 24.64
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 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
YESTERDAY 15 10 5 0
MONTH TO DATE 343 299 44 227
SINCE JUN 1 1056 915 141 1025
SINCE JAN 1 1229 1021 208 1143
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WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91 11:00 PM
LOWEST 57 2:00 PM
AVERAGE 74
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 99 2024
MINIMUM TEMPERATURE (F) 64 44 1986
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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