633
CDUS41 KLWX 102123
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
523 PM EDT SUN MAY 10 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 10 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 82 12:44 PM 90 1963 74 8 74
MINIMUM 47 5:17 AM 31 1966 51 -4 40
1983
AVERAGE 65 62 3 57
PRECIPITATION (IN)
TODAY 0.09 1.61 1990 0.15 -0.06 0.00
MONTH TO DATE 0.38 1.44 -1.06 1.43
SINCE MAR 1 4.90 8.41 -3.51 4.86
SINCE JAN 1 10.70 13.96 -3.26 9.28
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 0 4 -4 8
MONTH TO DATE 63 53 10 17
SINCE MAR 1 713 1020 -307 708
SINCE JUL 1 4342 4530 -188 4030
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 7 16 -9 29
SINCE MAR 1 93 38 55 76
SINCE JAN 1 93 38 55 76
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 3.5
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 4:00 AM
LOWEST 34 1:00 PM
AVERAGE 67
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 90 1993
MINIMUM TEMPERATURE (F) 52 29 1966
SUNRISE AND SUNSET
MAY 10 2026...........SUNRISE 6:02 AM EDT SUNSET 8:11 PM EDT
MAY 11 2026...........SUNRISE 6:01 AM EDT SUNSET 8:12 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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