425
CDUS41 KLWX 192125
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
425 PM EST FRI DEC 19 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 19 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 59 6:48 AM 63 1967 46 13 46
MINIMUM 44 3:52 PM -2 1989 28 16 34
AVERAGE 52 37 15 40
PRECIPITATION (IN)
TODAY 0.24 1.34 2009 0.10 0.14 0.00
MONTH TO DATE 1.24 2.12 -0.88 2.35
SINCE DEC 1 1.24 2.12 -0.88 2.35
SINCE JAN 1 30.12 42.06 -11.94 33.38
SNOWFALL (IN)
TODAY 0.0 16.0 2009 0.1 -0.1 0.0
MONTH TO DATE 2.0 1.6 0.4 T
SINCE DEC 1 2.0 1.6 0.4 T
SINCE JUL 1 2.0 1.9 0.1 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 13 28 -15 25
MONTH TO DATE 606 495 111 515
SINCE DEC 1 606 495 111 515
SINCE JUL 1 1399 1395 4 1183
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 31 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 13.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 6:00 AM
LOWEST 40 12:00 PM
AVERAGE 67
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 64 1988
MINIMUM TEMPERATURE (F) 28 8 1991
SUNRISE AND SUNSET
DECEMBER 19 2025......SUNRISE 7:24 AM EST SUNSET 4:50 PM EST
DECEMBER 20 2025......SUNRISE 7:25 AM EST SUNSET 4:51 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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