765
CDUS41 KLWX 090629
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 AM EDT SUN AUG 09 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 8 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 91 2:12 PM 101 2007 87 4 82
MINIMUM 69 5:22 AM 49 1989 66 3 61
AVERAGE 80 77 3 72
PRECIPITATION (IN)
YESTERDAY T 1.39 2024 0.12 -0.12 0.00
MONTH TO DATE 1.67 0.96 0.71 0.12
SINCE JUN 1 11.30 9.41 1.89 9.99
SINCE JAN 1 26.22 26.65 -0.43 23.91
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 12 3 7
MONTH TO DATE 116 96 20 54
SINCE JUN 1 829 712 117 852
SINCE JAN 1 1002 818 184 970
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WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.2
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 3:00 AM
LOWEST 51 5:00 PM
AVERAGE 76
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 97 1980
2001
MINIMUM TEMPERATURE (F) 66 47 1989
SUNRISE AND SUNSET
AUGUST 9 2026........SUNRISE 6:18 AM EDT SUNSET 8:12 PM EDT
AUGUST 10 2026........SUNRISE 6:19 AM EDT SUNSET 8:11 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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