643
CDUS41 KLWX 170527
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1227 AM EST TUE DEC 17 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 16 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 48 11:59 PM 72 1971 46 2 60
MINIMUM 35 1:10 AM 9 2016 29 6 28
AVERAGE 42 38 4 44
PRECIPITATION (IN)
YESTERDAY 0.24 1.30 2020 0.11 0.13 0.00
MONTH TO DATE 2.16 1.81 0.35 2.46
SINCE DEC 1 2.16 1.81 0.35 2.46
SINCE JAN 1 33.19 41.75 -8.56 31.49
SNOWFALL (IN)
YESTERDAY 0.0 5.2 1973 0.1 -0.1 0.0
MONTH TO DATE T 1.3 -1.3 0.5
SINCE DEC 1 T 1.3 -1.3 0.5
SINCE JUL 1 T 1.6 -1.6 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 27 -4 21
MONTH TO DATE 450 411 39 351
SINCE DEC 1 450 411 39 351
SINCE JUL 1 1118 1311 -193 1122
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 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 PM
LOWEST 89 1:00 PM
AVERAGE 93
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 70 1984
MINIMUM TEMPERATURE (F) 29 3 1989
SUNRISE AND SUNSET
DECEMBER 17 2024......SUNRISE 7:23 AM EST SUNSET 4:49 PM EST
DECEMBER 18 2024......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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