675
CDUS41 KLWX 100640
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
240 AM EDT WED JUN 10 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 9 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 84 2:39 PM 97 2011 81 3 83
MINIMUM 64 5:46 AM 43 1975 60 4 67
AVERAGE 74 71 3 75
PRECIPITATION (IN)
YESTERDAY 0.00 0.66 1977 0.14 -0.14 T
MONTH TO DATE T 1.33 -1.33 1.40
SINCE JUN 1 T 1.33 -1.33 1.40
SINCE JAN 1 14.92 18.57 -3.65 15.32
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 13.6 21.0 -7.4 15.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 11 -10 15
SINCE JUN 1 1 11 -10 15
SINCE JUL 1 4412 4603 -191 4106
COOLING
YESTERDAY 9 6 3 10
MONTH TO DATE 53 50 3 53
SINCE JUN 1 53 50 3 53
SINCE JAN 1 226 156 70 171
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 7.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 7:00 AM
LOWEST 51 3:00 PM
AVERAGE 62
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 99 1964
MINIMUM TEMPERATURE (F) 60 43 1988
SUNRISE AND SUNSET
JUNE 10 2026..........SUNRISE 5:44 AM EDT SUNSET 8:35 PM EDT
JUNE 11 2026..........SUNRISE 5:44 AM EDT SUNSET 8:35 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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