697
CDUS41 KLWX 300625
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 AM EDT SAT AUG 30 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 29 2025
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)
YESTERDAY
MAXIMUM 82 2:54 PM 98 1991 85 -3 93
MINIMUM 55 5:28 AM 38 1982 63 -8 71
AVERAGE 69 74 -5 82
PRECIPITATION (IN)
YESTERDAY 0.00 1.92 2024 0.11 -0.11 1.92
MONTH TO DATE 0.85 3.31 -2.46 4.99
SINCE JUN 1 10.72 11.76 -1.04 8.34
SINCE JAN 1 24.64 29.00 -4.36 25.64
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 2
SINCE JUN 1 15 13 2 2
SINCE JUL 1 0 0 0 2
COOLING
YESTERDAY 4 9 -5 17
MONTH TO DATE 232 317 -85 359
SINCE JUN 1 1030 933 97 1212
SINCE JAN 1 1148 1039 109 1395
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WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.2
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 5:00 AM
LOWEST 29 5:00 PM
AVERAGE 57
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 99 1991
MINIMUM TEMPERATURE (F) 63 41 1986
SUNRISE AND SUNSET
AUGUST 30 2025........SUNRISE 6:37 AM EDT SUNSET 7:43 PM EDT
AUGUST 31 2025........SUNRISE 6:38 AM EDT SUNSET 7:41 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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