148
CDUS41 KLWX 190544
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1244 AM EST THU DEC 19 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 18 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 53 4:09 PM 76 2006 46 7 53
MINIMUM 31 7:42 AM 3 1989 29 2 36
AVERAGE 42 37 5 45
PRECIPITATION (IN)
YESTERDAY 0.19 2.92 1977 0.11 0.08 0.36
MONTH TO DATE 2.35 2.02 0.33 4.73
SINCE DEC 1 2.35 2.02 0.33 4.73
SINCE JAN 1 33.38 41.96 -8.58 33.76
SNOWFALL (IN)
YESTERDAY 0.0 2.0 2009 0.1 -0.1 0.0
MONTH TO DATE T 1.5 -1.5 0.5
SINCE DEC 1 T 1.5 -1.5 0.5
SINCE JUL 1 T 1.8 -1.8 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 28 -5 20
MONTH TO DATE 490 467 23 390
SINCE DEC 1 490 467 23 390
SINCE JUL 1 1158 1367 -209 1161
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 17 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 8:00 PM
LOWEST 52 1:00 PM
AVERAGE 71
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 63 1967
MINIMUM TEMPERATURE (F) 28 -2 1989
SUNRISE AND SUNSET
DECEMBER 19 2024......SUNRISE 7:24 AM EST SUNSET 4:50 PM EST
DECEMBER 20 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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