198
CDUS41 KLWX 122151
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
451 PM EST THU DEC 12 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 12 2024
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 45 3:23 PM 72 1979 47 -2 49
MINIMUM 28 6:57 AM 9 1988 30 -2 23
AVERAGE 37 38 -1 36
PRECIPITATION (IN)
TODAY 0.00 0.95 1964 0.11 -0.11 0.00
MONTH TO DATE 1.59 1.37 0.22 2.46
SINCE DEC 1 1.59 1.37 0.22 2.46
SINCE JAN 1 32.62 41.31 -8.69 31.49
SNOWFALL (IN)
TODAY 0.0 10.6 1982 0.1 -0.1 0.0
MONTH TO DATE T 0.9 -0.9 0.5
SINCE DEC 1 T 0.9 -0.9 0.5
SINCE JUL 1 T 1.2 -1.2 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 28 27 1 29
MONTH TO DATE 330 303 27 254
SINCE DEC 1 330 303 27 254
SINCE JUL 1 998 1203 -205 1025
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1586 1231 355 1380
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 8.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 7:00 AM
LOWEST 22 3:00 PM
AVERAGE 49
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 73 2015
MINIMUM TEMPERATURE (F) 29 7 1988
SUNRISE AND SUNSET
DECEMBER 12 2024......SUNRISE 7:20 AM EST SUNSET 4:48 PM EST
DECEMBER 13 2024......SUNRISE 7:20 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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