823
CDUS41 KLWX 012124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
424 PM EST MON DEC 01 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 1 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 44 2:52 PM 75 2006 51 -7 43
MINIMUM 32 5:38 AM 4 1967 32 0 20
AVERAGE 38 41 -3 32
PRECIPITATION (IN)
TODAY 0.00 2.02 1974 0.11 -0.11 T
MONTH TO DATE 0.00 0.11 -0.11 T
SINCE DEC 1 0.00 0.11 -0.11 T
SINCE JAN 1 28.88 40.05 -11.17 31.03
SNOWFALL (IN)
TODAY 0.0 T 1981 0.1 -0.1 T
1992
2024
MONTH TO DATE 0.0 0.1 -0.1 T
SINCE DEC 1 0.0 0.1 -0.1 T
SINCE JUL 1 T 0.4 -0.4 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 27 24 3 33
MONTH TO DATE 27 24 3 33
SINCE DEC 1 27 24 3 33
SINCE JUL 1 820 924 -104 701
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 18 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 10.7
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61 5:00 AM
LOWEST 38 2:00 PM
AVERAGE 50
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 75 1970
MINIMUM TEMPERATURE (F) 32 0 1967
SUNRISE AND SUNSET
DECEMBER 1 2025......SUNRISE 7:10 AM EST SUNSET 4:48 PM EST
DECEMBER 2 2025......SUNRISE 7:11 AM EST SUNSET 4:48 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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