170
CDUS41 KLWX 232130
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
430 PM EST TUE DEC 23 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 23 2025
VALID TODAY AS OF 0400 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 47 3:59 PM 68 1990 45 2 35
MINIMUM 36 7:44 AM 4 1989 28 8 14
AVERAGE 42 36 6 25
PRECIPITATION (IN)
TODAY 0.04 1.30 2004 0.11 -0.07 0.00
MONTH TO DATE 1.28 2.54 -1.26 2.35
SINCE DEC 1 1.28 2.54 -1.26 2.35
SINCE JAN 1 30.16 42.48 -12.32 33.38
SNOWFALL (IN)
TODAY 0.0 7.5 1963 0.1 -0.1 0.0
MONTH TO DATE 2.0 1.9 0.1 T
SINCE DEC 1 2.0 1.9 0.1 T
SINCE JUL 1 2.0 2.2 -0.2 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 23 29 -6 40
MONTH TO DATE 725 609 116 654
SINCE DEC 1 725 609 116 654
SINCE JUL 1 1518 1509 9 1322
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1330 1231 99 1586
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 10:00 AM
LOWEST 38 12:00 AM
AVERAGE 62
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 71 2015
MINIMUM TEMPERATURE (F) 28 1 1983
SUNRISE AND SUNSET
DECEMBER 23 2025......SUNRISE 7:26 AM EST SUNSET 4:52 PM EST
DECEMBER 24 2025......SUNRISE 7:26 AM EST SUNSET 4:53 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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