408
CDUS46 KSEW 290217
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PST SUN DEC 28 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 28 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 41 315 PM 56 1980 47 -6 50
2023
MINIMUM 30 521 AM 12 1990 37 -7 45
AVERAGE 36 42 -6 48
PRECIPITATION (IN)
TODAY 0.00 1.53 1945 0.18 -0.18 0.18
MONTH TO DATE 8.37 5.18 3.19 5.38
SINCE OCT 1 17.78 15.40 2.38 13.28
SINCE JAN 1 34.05 38.80 -4.75 32.06
SNOWFALL (IN)
TODAY MM 2.8 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 MM
DEGREE DAYS
HEATING
TODAY 29 23 6 17
MONTH TO DATE 528 640 -112 576
SINCE DEC 1 528 640 -112 576
SINCE JUL 1 1442 1701 -259 1617
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
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (70)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 3.5
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 400 AM
LOWEST 65 300 PM
AVERAGE 81
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 63 2023
MINIMUM TEMPERATURE (F) 37 8 1968
SUNRISE AND SUNSET
DECEMBER 28 2025......SUNRISE 756 AM PST SUNSET 426 PM PST
DECEMBER 29 2025......SUNRISE 757 AM PST SUNSET 427 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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