210
CDUS41 KLWX 182124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT SUN MAY 18 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 18 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 76 3:59 PM 91 1987 75 1 64
MINIMUM 65 2:20 AM 33 1973 54 11 61
AVERAGE 71 64 7 63
PRECIPITATION (IN)
TODAY 0.00 3.13 1988 0.15 -0.15 0.69
MONTH TO DATE 3.34 2.68 0.66 3.16
SINCE MAR 1 6.77 9.65 -2.88 8.79
SINCE JAN 1 11.19 15.20 -4.01 16.24
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 0.0 4.0 -4.0 T
SINCE JUL 1 15.5 21.0 -5.5 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 3 -3 2
MONTH TO DATE 20 84 -64 47
SINCE MAR 1 711 1051 -340 726
SINCE JUL 1 4033 4561 -528 3690
COOLING
TODAY 6 3 3 0
MONTH TO DATE 69 35 34 44
SINCE MAR 1 116 57 59 88
SINCE JAN 1 116 57 59 91
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 10.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 52 4:00 AM
LOWEST 42 12:00 AM
AVERAGE 47
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1996
1997
MINIMUM TEMPERATURE (F) 54 36 2002
SUNRISE AND SUNSET
MAY 18 2025...........SUNRISE 5:54 AM EDT SUNSET 8:19 PM EDT
MAY 19 2025...........SUNRISE 5:54 AM EDT SUNSET 8:19 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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