876
CDUS41 KLWX 112125
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
425 PM EST MON DEC 11 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 11 2023
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 47 2:30 PM 71 1979 48 -1 49
MINIMUM 33 3:57 AM 3 1968 30 3 33
AVERAGE 40 39 1 41
PRECIPITATION (IN)
TODAY 0.34 1.34 2008 0.12 0.22 T
MONTH TO DATE 2.46 1.26 1.20 0.40
SINCE DEC 1 2.46 1.26 1.20 0.40
SINCE JAN 1 31.49 41.20 -9.71 36.21
SNOWFALL (IN)
TODAY 0.5 R 0.5 1962 0.1 0.4 0.0
MONTH TO DATE 0.5 0.8 -0.3 0.0
SINCE DEC 1 0.5 0.8 -0.3 0.0
SINCE JUL 1 0.5 1.1 -0.6 T
SNOW DEPTH T
DEGREE DAYS
HEATING
TODAY 25 26 -1 24
MONTH TO DATE 223 276 -53 258
SINCE DEC 1 223 276 -53 258
SINCE JUL 1 994 1176 -182 1092
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1380 1231 149 1376
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 14.0
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
SNOW
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 45 2:00 PM
AVERAGE 71
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 72 1979
MINIMUM TEMPERATURE (F) 30 9 1988
SUNRISE AND SUNSET
DECEMBER 11 2023......SUNRISE 7:18 AM EST SUNSET 4:48 PM EST
DECEMBER 12 2023......SUNRISE 7:19 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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