554
CDUS41 KLWX 110630
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
230 AM EDT THU JUN 11 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 10 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 88 1:22 PM 99 1964 82 6 85
MINIMUM 69 5:51 AM 43 1988 60 9 64
AVERAGE 79 71 8 75
PRECIPITATION (IN)
YESTERDAY 0.57 1.16 2009 0.15 0.42 0.31
MONTH TO DATE 0.57 1.48 -0.91 1.71
SINCE JUN 1 0.57 1.48 -0.91 1.71
SINCE JAN 1 15.49 18.72 -3.23 15.63
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 0 0 0
MONTH TO DATE 1 11 -10 15
SINCE JUN 1 1 11 -10 15
SINCE JUL 1 4412 4603 -191 4106
COOLING
YESTERDAY 14 6 8 10
MONTH TO DATE 67 56 11 63
SINCE JUN 1 67 56 11 63
SINCE JAN 1 240 162 78 181
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WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 8.4
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 AM
LOWEST 65 1:00 PM
AVERAGE 81
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 95 2016
MINIMUM TEMPERATURE (F) 61 40 1972
SUNRISE AND SUNSET
JUNE 11 2026..........SUNRISE 5:44 AM EDT SUNSET 8:35 PM EDT
JUNE 12 2026..........SUNRISE 5:44 AM EDT SUNSET 8:36 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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