826
CDUS41 KLWX 182136
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
436 PM EST MON DEC 18 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 18 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 53 1:49 PM 76 2006 46 7 42
MINIMUM 46 3:59 PM 3 1989 29 17 28
AVERAGE 50 37 13 35
PRECIPITATION (IN)
TODAY 0.36 2.92 1977 0.11 0.25 0.00
MONTH TO DATE 4.73 2.02 2.71 2.34
SINCE DEC 1 4.73 2.02 2.71 2.34
SINCE JAN 1 33.76 41.96 -8.20 38.15
SNOWFALL (IN)
TODAY 0.0 2.0 2009 0.1 -0.1 0.0
MONTH TO DATE 0.5 1.5 -1.0 0.0
SINCE DEC 1 0.5 1.5 -1.0 0.0
SINCE JUL 1 0.5 1.8 -1.3 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 15 28 -13 30
MONTH TO DATE 385 467 -82 454
SINCE DEC 1 385 467 -82 454
SINCE JUL 1 1156 1367 -211 1288
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 36 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 20.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 12:00 AM
LOWEST 43 3:00 PM
AVERAGE 67
......................................................
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 2023......SUNRISE 7:23 AM EST SUNSET 4:50 PM EST
DECEMBER 19 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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