546
CDUS41 KLWX 172126
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
426 PM EST WED DEC 17 2025
...............................
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 17 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 51 2:09 PM 65 2021 48 3 65
2024
MINIMUM 28 3:47 AM 10 1876 34 -6 44
AVERAGE 40 41 -1 55
PRECIPITATION (IN)
TODAY 0.00 2.43 1888 0.11 -0.11 T
MONTH TO DATE 1.20 1.96 -0.76 1.68
SINCE DEC 1 1.20 1.96 -0.76 1.68
SINCE JAN 1 34.99 40.37 -5.38 36.37
SNOWFALL (IN)
TODAY 0.0 11.5 1932 0.1 -0.1 0.0
MONTH TO DATE 1.5 0.8 0.7 T
SINCE DEC 1 1.5 0.8 0.7 T
SINCE JUL 1 1.5 0.9 0.6 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 25 24 1 10
MONTH TO DATE 487 372 115 393
SINCE DEC 1 487 372 115 393
SINCE JUL 1 1062 1018 44 816
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1716 1737 -21 2029
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 3:00 AM
LOWEST 44 1:00 PM
AVERAGE 60
......................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 48 74 2006
MINIMUM TEMPERATURE (F) 34 10 1919
1926
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 7:21 AM EST SUNSET 4:48 PM EST
DECEMBER 18 2025......SUNRISE 7:21 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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