492
CDUS46 KSEW 090218
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
618 PM PST MON DEC 08 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 8 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 56 333 PM 60 2015 48 8 47
MINIMUM 47 1000 AM 13 1972 37 10 42
AVERAGE 52 42 10 45
PRECIPITATION (IN)
TODAY 0.60 2.13 2015 0.19 0.41 0.04
MONTH TO DATE 1.60 1.52 0.08 0.59
SINCE OCT 1 11.01 11.74 -0.73 8.49
SINCE JAN 1 27.28 35.14 -7.86 27.27
SNOWFALL (IN)
TODAY 0.0 2.2 1971 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
TODAY 13 23 -10 20
MONTH TO DATE 142 177 -35 197
SINCE DEC 1 142 177 -35 197
SINCE JUL 1 1056 1238 -182 1238
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 328 263 65 315
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WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 13.5
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1100 AM
LOWEST 89 300 AM
AVERAGE 93
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 61 2014
MINIMUM TEMPERATURE (F) 37 18 2009
SUNRISE AND SUNSET
DECEMBER 8 2025......SUNRISE 744 AM PST SUNSET 418 PM PST
DECEMBER 9 2025......SUNRISE 745 AM PST SUNSET 418 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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