108
CDUS41 KLWX 212126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
426 PM EST THU DEC 21 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 21 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 45 1:46 PM 70 2013 45 0 46
MINIMUM 24 7:34 AM 4 1989 28 -4 19
AVERAGE 35 37 -2 33
PRECIPITATION (IN)
TODAY 0.00 1.15 1973 0.10 -0.10 0.00
MONTH TO DATE 4.73 2.33 2.40 2.34
SINCE DEC 1 4.73 2.33 2.40 2.34
SINCE JAN 1 33.76 42.27 -8.51 38.15
SNOWFALL (IN)
TODAY 0.0 5.8 1962 0.1 -0.1 0.0
MONTH TO DATE 0.5 1.7 -1.2 0.0
SINCE DEC 1 0.5 1.7 -1.2 0.0
SINCE JUL 1 0.5 2.0 -1.5 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 30 28 2 32
MONTH TO DATE 480 551 -71 551
SINCE DEC 1 480 551 -71 551
SINCE JUL 1 1251 1451 -200 1385
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 7 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 1.8
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 5:00 AM
LOWEST 38 1:00 PM
AVERAGE 60
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 71 2013
MINIMUM TEMPERATURE (F) 28 2 1989
SUNRISE AND SUNSET
DECEMBER 21 2023......SUNRISE 7:25 AM EST SUNSET 4:51 PM EST
DECEMBER 22 2023......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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