112
CDUS46 KSEW 160928
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PST MON DEC 16 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 15 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 47 156 PM 63 1980 47 0 52
MINIMUM 39 816 AM 19 2008 37 2 39
AVERAGE 43 42 1 46
PRECIPITATION (IN)
YESTERDAY T 1.60 1959 0.18 -0.18 0.00
MONTH TO DATE 1.26 2.79 -1.53 6.70
SINCE OCT 1 9.16 13.01 -3.85 15.37
SINCE JAN 1 27.94 36.41 -8.47 33.19
SNOWFALL (IN)
YESTERDAY 0.0 1.2 1979 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 22 23 -1 19
MONTH TO DATE 355 338 17 291
SINCE DEC 1 355 338 17 291
SINCE JUL 1 1396 1399 -3 1294
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 315 263 52 378
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WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 10.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1200 AM
LOWEST 65 200 PM
AVERAGE 77
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 57 1974
MINIMUM TEMPERATURE (F) 37 10 1964
SUNRISE AND SUNSET
DECEMBER 16 2024......SUNRISE 751 AM PST SUNSET 419 PM PST
DECEMBER 17 2024......SUNRISE 752 AM PST SUNSET 419 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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