935
CDUS46 KSEW 010216
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PST WED DEC 31 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 31 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 40 220 PM 56 1963 47 -7 45
1996
MINIMUM 32 727 AM 13 1968 37 -5 35
1978
AVERAGE 36 42 -6 40
PRECIPITATION (IN)
TODAY 0.00 1.30 1996 0.18 -0.18 T
MONTH TO DATE 7.37 5.72 1.65 5.50
SINCE OCT 1 16.78 15.94 0.84 13.40
SINCE JAN 1 33.05 39.34 -6.29 32.18
SNOWFALL (IN)
TODAY 0.0 9.3 1968 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 29 23 6 25
MONTH TO DATE 606 709 -103 646
SINCE DEC 1 606 709 -103 646
SINCE JUL 1 1520 1770 -250 1687
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 0 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 1.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 93 200 PM
AVERAGE 97
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 58 2006
MINIMUM TEMPERATURE (F) 37 10 1952
SUNRISE AND SUNSET
DECEMBER 31 2025......SUNRISE 757 AM PST SUNSET 428 PM PST
JANUARY 1 2026.......SUNRISE 757 AM PST SUNSET 429 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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