650
CDUS41 KLWX 182124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
424 PM EST WED DEC 18 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 18 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 53 3:59 PM 76 2006 46 7 53
MINIMUM 31 7:42 AM 3 1989 29 2 36
AVERAGE 42 37 5 45
PRECIPITATION (IN)
TODAY 0.00 2.92 1977 0.11 -0.11 0.36
MONTH TO DATE 2.16 2.02 0.14 4.73
SINCE DEC 1 2.16 2.02 0.14 4.73
SINCE JAN 1 33.19 41.96 -8.77 33.76
SNOWFALL (IN)
TODAY 0.0 2.0 2009 0.1 -0.1 0.0
MONTH TO DATE T 1.5 -1.5 0.5
SINCE DEC 1 T 1.5 -1.5 0.5
SINCE JUL 1 T 1.8 -1.8 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 23 28 -5 20
MONTH TO DATE 490 467 23 390
SINCE DEC 1 490 467 23 390
SINCE JUL 1 1158 1367 -209 1161
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 9 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 2.8
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 4:00 AM
LOWEST 52 1:00 PM
AVERAGE 70
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 63 1967
MINIMUM TEMPERATURE (F) 28 -2 1989
SUNRISE AND SUNSET
DECEMBER 18 2024......SUNRISE 7:24 AM EST SUNSET 4:50 PM EST
DECEMBER 19 2024......SUNRISE 7:24 AM EST SUNSET 4:50 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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