584
CDUS41 KLWX 292125
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
425 PM EST MON DEC 29 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 29 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 60 12:14 PM 78 1984 44 16 67
MINIMUM 45 3:59 PM 7 1977 27 18 51
AVERAGE 53 35 18 59
PRECIPITATION (IN)
TODAY T 1.27 2013 0.09 -0.09 0.12
MONTH TO DATE 1.30 3.12 -1.82 2.98
SINCE DEC 1 1.30 3.12 -1.82 2.98
SINCE JAN 1 30.18 43.06 -12.88 34.01
SNOWFALL (IN)
TODAY 0.0 3.3 1962 0.1 -0.1 0.0
MONTH TO DATE 2.0 2.5 -0.5 0.1
SINCE DEC 1 2.0 2.5 -0.5 0.1
SINCE JUL 1 2.0 2.8 -0.8 0.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 12 30 -18 6
MONTH TO DATE 851 786 65 792
SINCE DEC 1 851 786 65 792
SINCE JUL 1 1644 1686 -42 1460
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 40 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 16.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1:00 AM
LOWEST 23 3:00 PM
AVERAGE 58
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 67 1990
MINIMUM TEMPERATURE (F) 27 4 1963
SUNRISE AND SUNSET
DECEMBER 29 2025......SUNRISE 7:28 AM EST SUNSET 4:56 PM EST
DECEMBER 30 2025......SUNRISE 7:28 AM EST SUNSET 4:57 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page