206
CDUS41 KLWX 050723
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EST MON JAN 05 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 4 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 42 3:37 PM 74 1997 43 -1 31
MINIMUM 27 11:48 PM 5 1979 26 1 24
AVERAGE 35 34 1 28
PRECIPITATION (IN)
YESTERDAY T 0.89 1992 0.09 -0.09 0.00
MONTH TO DATE 0.01 0.37 -0.36 0.05
SINCE DEC 1 1.31 3.67 -2.36 3.39
SINCE JAN 1 0.01 0.37 -0.36 0.05
SNOWFALL (IN)
YESTERDAY T 1.8 1980 0.1 -0.1 0.0
MONTH TO DATE 0.1 0.5 -0.4 0.2
SINCE DEC 1 2.1 3.3 -1.2 0.3
SINCE JUL 1 2.1 3.6 -1.5 0.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 30 30 0 37
MONTH TO DATE 136 120 16 117
SINCE DEC 1 1070 965 105 946
SINCE JUL 1 1863 1865 -2 1614
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 65 11:00 PM
LOWEST 32 12:00 PM
AVERAGE 49
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 69 1997
MINIMUM TEMPERATURE (F) 26 5 1970
SUNRISE AND SUNSET
JANUARY 5 2026.......SUNRISE 7:29 AM EST SUNSET 5:02 PM EST
JANUARY 6 2026.......SUNRISE 7:29 AM EST SUNSET 5:03 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