450
CDUS41 KLWX 152126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
426 PM EST FRI DEC 15 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 15 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 61 2:24 PM 71 1971 47 14 40
MINIMUM 24 7:12 AM 5 1989 29 -5 33
AVERAGE 43 38 5 37
PRECIPITATION (IN)
TODAY 0.00 2.49 2018 0.11 -0.11 1.88
MONTH TO DATE 2.46 1.70 0.76 2.28
SINCE DEC 1 2.46 1.70 0.76 2.28
SINCE JAN 1 31.49 41.64 -10.15 38.09
SNOWFALL (IN)
TODAY 0.0 4.7 1981 0.1 -0.1 0.0
MONTH TO DATE 0.5 1.2 -0.7 0.0
SINCE DEC 1 0.5 1.2 -0.7 0.0
SINCE JUL 1 0.5 1.5 -1.0 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 22 27 -5 28
MONTH TO DATE 330 384 -54 376
SINCE DEC 1 330 384 -54 376
SINCE JUL 1 1101 1284 -183 1210
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 17 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 2.6
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 7:00 AM
LOWEST 28 3:00 PM
AVERAGE 55
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 72 1971
MINIMUM TEMPERATURE (F) 29 9 2016
SUNRISE AND SUNSET
DECEMBER 15 2023......SUNRISE 7:21 AM EST SUNSET 4:49 PM EST
DECEMBER 16 2023......SUNRISE 7:22 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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