117
CDUS41 KLWX 200528
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1228 AM EST FRI DEC 20 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 19 2024
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)
YESTERDAY
MAXIMUM 46 2:03 PM 63 1967 46 0 41
MINIMUM 34 11:48 PM -2 1989 28 6 29
AVERAGE 40 37 3 35
PRECIPITATION (IN)
YESTERDAY 0.00 1.34 2009 0.10 -0.10 0.00
MONTH TO DATE 2.35 2.12 0.23 4.73
SINCE DEC 1 2.35 2.12 0.23 4.73
SINCE JAN 1 33.38 42.06 -8.68 33.76
SNOWFALL (IN)
YESTERDAY 0.0 16.0 2009 0.1 -0.1 0.0
MONTH TO DATE T 1.6 -1.6 0.5
SINCE DEC 1 T 1.6 -1.6 0.5
SINCE JUL 1 T 1.9 -1.9 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 25 28 -3 30
MONTH TO DATE 515 495 20 420
SINCE DEC 1 515 495 20 420
SINCE JUL 1 1183 1395 -212 1191
COOLING
YESTERDAY 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
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WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 7.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74 12:00 AM
LOWEST 49 2:00 PM
AVERAGE 62
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 64 1988
MINIMUM TEMPERATURE (F) 28 8 1991
SUNRISE AND SUNSET
DECEMBER 20 2024......SUNRISE 7:25 AM EST SUNSET 4:51 PM EST
DECEMBER 21 2024......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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