261
CDUS41 KLWX 162131
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
431 PM EST MON DEC 16 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 16 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 43 3:59 PM 72 1971 46 -3 60
MINIMUM 35 1:10 AM 9 2016 29 6 28
AVERAGE 39 38 1 44
PRECIPITATION (IN)
TODAY 0.24 1.30 2020 0.11 0.13 0.00
MONTH TO DATE 2.16 1.81 0.35 2.46
SINCE DEC 1 2.16 1.81 0.35 2.46
SINCE JAN 1 33.19 41.75 -8.56 31.49
SNOWFALL (IN)
TODAY 0.0 5.2 1973 0.1 -0.1 0.0
MONTH TO DATE T 1.3 -1.3 0.5
SINCE DEC 1 T 1.3 -1.3 0.5
SINCE JUL 1 T 1.6 -1.6 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 26 27 -1 21
MONTH TO DATE 453 411 42 351
SINCE DEC 1 453 411 42 351
SINCE JUL 1 1121 1311 -190 1122
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 10 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 4.4
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 AM
LOWEST 89 1:00 PM
AVERAGE 93
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 70 1984
MINIMUM TEMPERATURE (F) 29 3 1989
SUNRISE AND SUNSET
DECEMBER 16 2024......SUNRISE 7:22 AM EST SUNSET 4:49 PM EST
DECEMBER 17 2024......SUNRISE 7:23 AM EST SUNSET 4:49 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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