852
CDUS41 KLWX 160530
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1230 AM EST MON DEC 16 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 15 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 39 1:11 PM 71 1971 47 -8 61
MINIMUM 32 8:09 AM 5 1989 29 3 24
AVERAGE 36 38 -2 43
PRECIPITATION (IN)
YESTERDAY 0.33 2.49 2018 0.11 0.22 0.00
MONTH TO DATE 1.92 1.70 0.22 2.46
SINCE DEC 1 1.92 1.70 0.22 2.46
SINCE JAN 1 32.95 41.64 -8.69 31.49
SNOWFALL (IN)
YESTERDAY T 4.7 1981 0.1 -0.1 0.0
MONTH TO DATE T 1.2 -1.2 0.5
SINCE DEC 1 T 1.2 -1.2 0.5
SINCE JUL 1 T 1.5 -1.5 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 29 27 2 22
MONTH TO DATE 427 384 43 330
SINCE DEC 1 427 384 43 330
SINCE JUL 1 1095 1284 -189 1101
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 9 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 3.5
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 9:00 PM
LOWEST 66 10:00 AM
AVERAGE 81
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 72 1971
MINIMUM TEMPERATURE (F) 29 9 2016
SUNRISE AND SUNSET
DECEMBER 16 2024......SUNRISE 7:22 AM EST SUNSET 4:49 PM EST
DECEMBER 17 2024......SUNRISE 7:23 AM EST SUNSET 4:49 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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