294
CDUS41 KLWX 100724
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EST WED DEC 10 2025
...............................
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 9 2025
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)
YESTERDAY
MAXIMUM 33 6:01 PM 71 1991 50 -17 58
MINIMUM 20 6:58 AM 4 1876 36 -16 38
AVERAGE 27 43 -16 48
PRECIPITATION (IN)
YESTERDAY 0.00 1.29 2009 0.12 -0.12 0.05
MONTH TO DATE 0.94 1.04 -0.10 0.05
SINCE DEC 1 0.94 1.04 -0.10 0.05
SINCE JAN 1 34.73 39.45 -4.72 34.74
SNOWFALL (IN)
YESTERDAY 0.0 1.6 2005 0.1 -0.1 0.0
MONTH TO DATE 1.1 0.4 0.7 T
SINCE DEC 1 1.1 0.4 0.7 T
SINCE JUL 1 1.1 0.5 0.6 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 38 22 16 17
MONTH TO DATE 266 188 78 223
SINCE DEC 1 266 188 78 223
SINCE JUL 1 841 834 7 646
COOLING
YESTERDAY 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 21 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 9.7
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 11:00 PM
LOWEST 33 12:00 AM
AVERAGE 56
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THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 67 1939
1966
MINIMUM TEMPERATURE (F) 36 4 1876
SUNRISE AND SUNSET
DECEMBER 10 2025......SUNRISE 7:16 AM EST SUNSET 4:46 PM EST
DECEMBER 11 2025......SUNRISE 7:17 AM EST SUNSET 4:46 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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