878
CDUS41 KLWX 150629
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 AM EDT FRI AUG 15 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 14 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 94 2:56 PM 100 1985 87 7 85
MINIMUM 68 4:40 AM 49 1983 66 2 62
AVERAGE 81 76 5 74
PRECIPITATION (IN)
YESTERDAY T 1.12 2008 0.11 -0.11 0.00
MONTH TO DATE 0.32 1.63 -1.31 1.97
SINCE JUN 1 10.19 10.08 0.11 5.32
SINCE JAN 1 24.11 27.32 -3.21 22.62
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 15 13 2 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 16 11 5 9
MONTH TO DATE 118 164 -46 212
SINCE JUN 1 916 780 136 1065
SINCE JAN 1 1034 886 148 1248
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WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 4.6
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 59 12:00 PM
AVERAGE 80
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 102 1988
MINIMUM TEMPERATURE (F) 66 45 1964
SUNRISE AND SUNSET
AUGUST 15 2025........SUNRISE 6:24 AM EDT SUNSET 8:04 PM EDT
AUGUST 16 2025........SUNRISE 6:25 AM EDT SUNSET 8:03 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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