638
CDUS41 KLWX 142123
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
523 PM EDT THU MAY 14 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 14 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 63 2:35 PM 89 2010 75 -12 73
MINIMUM 52 5:07 AM 32 1996 52 0 62
2013
AVERAGE 58 64 -6 68
PRECIPITATION (IN)
TODAY 0.04 1.87 2018 0.16 -0.12 0.10
MONTH TO DATE 0.86 2.06 -1.20 3.25
SINCE MAR 1 5.38 9.03 -3.65 6.68
SINCE JAN 1 11.18 14.58 -3.40 11.10
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 7 4 3 0
MONTH TO DATE 89 69 20 20
SINCE MAR 1 739 1036 -297 711
SINCE JUL 1 4368 4546 -178 4033
COOLING
TODAY 0 2 -2 3
MONTH TO DATE 8 24 -16 32
SINCE MAR 1 94 46 48 79
SINCE JAN 1 94 46 48 79
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 11.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 2:00 AM
LOWEST 44 2:00 PM
AVERAGE 71
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 90 1962
MINIMUM TEMPERATURE (F) 53 37 1984
2016
SUNRISE AND SUNSET
MAY 14 2026...........SUNRISE 5:58 AM EDT SUNSET 8:15 PM EDT
MAY 15 2026...........SUNRISE 5:57 AM EDT SUNSET 8:16 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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