836
CDUS41 KLWX 312122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT SUN MAY 31 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 31 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 76 3:59 PM 94 1991 79 -3 71
2011
2022
MINIMUM 45 4:35 AM 37 1984 57 -12 50
AVERAGE 61 68 -7 61
PRECIPITATION (IN)
TODAY 0.00 2.35 2018 0.15 -0.15 0.27
MONTH TO DATE 4.60 4.72 -0.12 6.07
SINCE MAR 1 9.12 11.69 -2.57 9.50
SINCE JAN 1 14.92 17.24 -2.32 13.92
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 1.0 4.0 -3.0 0.0
SINCE JUL 1 13.6 21.0 -7.4 15.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 4 2 2 4
MONTH TO DATE 132 116 16 78
SINCE MAR 1 782 1083 -301 769
SINCE JUL 1 4411 4593 -182 4091
COOLING
TODAY 0 5 -5 0
MONTH TO DATE 87 84 3 71
SINCE MAR 1 173 106 67 118
SINCE JAN 1 173 106 67 118
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 4.2
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 5:00 AM
LOWEST 25 4:00 PM
AVERAGE 57
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 95 2011
MINIMUM TEMPERATURE (F) 58 39 1984
SUNRISE AND SUNSET
MAY 31 2026...........SUNRISE 5:47 AM EDT SUNSET 8:29 PM EDT
JUNE 1 2026..........SUNRISE 5:46 AM EDT SUNSET 8:30 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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