140
CDUS41 KLWX 192126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
426 PM EST TUE DEC 19 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 19 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 41 2:59 PM 63 1967 46 -5 43
MINIMUM 35 7:50 AM -2 1989 28 7 25
AVERAGE 38 37 1 34
PRECIPITATION (IN)
TODAY 0.00 1.34 2009 0.10 -0.10 0.00
MONTH TO DATE 4.73 2.12 2.61 2.34
SINCE DEC 1 4.73 2.12 2.61 2.34
SINCE JAN 1 33.76 42.06 -8.30 38.15
SNOWFALL (IN)
TODAY 0.0 16.0 2009 0.1 -0.1 0.0
MONTH TO DATE 0.5 1.6 -1.1 0.0
SINCE DEC 1 0.5 1.6 -1.1 0.0
SINCE JUL 1 0.5 1.9 -1.4 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 27 28 -1 31
MONTH TO DATE 417 495 -78 485
SINCE DEC 1 417 495 -78 485
SINCE JUL 1 1188 1395 -207 1319
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 29 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 17.1
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 56 2:00 AM
LOWEST 41 3:00 PM
AVERAGE 49
......................................................
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 2023......SUNRISE 7:24 AM EST SUNSET 4:50 PM EST
DECEMBER 20 2023......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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