565
CDUS41 KLWX 192125
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
425 PM EST THU DEC 19 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 19 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 46 2:03 PM 63 1967 46 0 41
MINIMUM 40 8:00 AM -2 1989 28 12 29
AVERAGE 43 37 6 35
PRECIPITATION (IN)
TODAY 0.00 1.34 2009 0.10 -0.10 0.00
MONTH TO DATE 2.35 2.12 0.23 4.73
SINCE DEC 1 2.35 2.12 0.23 4.73
SINCE JAN 1 33.38 42.06 -8.68 33.76
SNOWFALL (IN)
TODAY 0.0 16.0 2009 0.1 -0.1 0.0
MONTH TO DATE T 1.6 -1.6 0.5
SINCE DEC 1 T 1.6 -1.6 0.5
SINCE JUL 1 T 1.9 -1.9 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 22 28 -6 30
MONTH TO DATE 512 495 17 420
SINCE DEC 1 512 495 17 420
SINCE JUL 1 1180 1395 -215 1191
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 18 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 9.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74 12:00 AM
LOWEST 49 2:00 PM
AVERAGE 62
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 64 1988
MINIMUM TEMPERATURE (F) 28 8 1991
SUNRISE AND SUNSET
DECEMBER 19 2024......SUNRISE 7:24 AM EST SUNSET 4:50 PM EST
DECEMBER 20 2024......SUNRISE 7:25 AM EST SUNSET 4:51 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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