422
CDUS41 KLWX 040726
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
226 AM EST THU DEC 04 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 3 2025
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)
YESTERDAY
MAXIMUM 44 3:26 PM 74 1998 50 -6 42
MINIMUM 25 11:12 PM 7 1976 31 -6 21
AVERAGE 35 41 -6 32
PRECIPITATION (IN)
YESTERDAY 0.00 1.14 1967 0.12 -0.12 0.00
MONTH TO DATE 0.73 0.34 0.39 T
SINCE DEC 1 0.73 0.34 0.39 T
SINCE JAN 1 29.61 40.28 -10.67 31.03
SNOWFALL (IN)
YESTERDAY 0.0 T 1983 0.1 -0.1 0.0
1989
2005
MONTH TO DATE 0.0 0.2 -0.2 T
SINCE DEC 1 0.0 0.2 -0.2 T
SINCE JUL 1 T 0.5 -0.5 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 30 24 6 33
MONTH TO DATE 88 72 16 101
SINCE DEC 1 88 72 16 101
SINCE JUL 1 881 972 -91 769
COOLING
YESTERDAY 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 17 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 10:00 PM
LOWEST 47 3:00 PM
AVERAGE 68
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 75 1998
MINIMUM TEMPERATURE (F) 31 10 1966
SUNRISE AND SUNSET
DECEMBER 4 2025......SUNRISE 7:13 AM EST SUNSET 4:47 PM EST
DECEMBER 5 2025......SUNRISE 7:14 AM EST SUNSET 4:47 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