716
CDUS41 KLWX 302133
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
433 PM EST TUE DEC 30 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 30 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 35 1:40 PM 67 1990 44 -9 61
MINIMUM 29 8:33 AM 4 1963 27 2 33
AVERAGE 32 35 -3 47
PRECIPITATION (IN)
TODAY 0.00 0.87 1969 0.09 -0.09 0.00
MONTH TO DATE 1.30 3.21 -1.91 2.98
SINCE DEC 1 1.30 3.21 -1.91 2.98
SINCE JAN 1 30.18 43.15 -12.97 34.01
SNOWFALL (IN)
TODAY 0.0 0.9 1977 0.2 -0.2 0.0
MONTH TO DATE 2.0 2.7 -0.7 0.1
SINCE DEC 1 2.0 2.7 -0.7 0.1
SINCE JUL 1 2.0 3.0 -1.0 0.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 33 30 3 18
MONTH TO DATE 892 816 76 810
SINCE DEC 1 892 816 76 810
SINCE JUL 1 1685 1716 -31 1478
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 36 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 22.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 46 6:00 AM
LOWEST 35 2:00 PM
AVERAGE 41
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 73 1992
MINIMUM TEMPERATURE (F) 27 1 1993
SUNRISE AND SUNSET
DECEMBER 30 2025......SUNRISE 7:28 AM EST SUNSET 4:57 PM EST
DECEMBER 31 2025......SUNRISE 7:28 AM EST SUNSET 4:58 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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