893
CDUS46 KSEW 220927
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PST MON DEC 22 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 2025...
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)
YESTERDAY
MAXIMUM 48 1225 PM 59 2020 46 2 58
MINIMUM 42 1149 PM 12 1990 37 5 44
AVERAGE 45 42 3 51
PRECIPITATION (IN)
YESTERDAY 0.20 1.64 2020 0.19 0.01 0.31
MONTH TO DATE 7.83 3.87 3.96 3.22
SINCE OCT 1 17.24 14.09 3.15 11.12
SINCE JAN 1 33.51 37.49 -3.98 29.90
SNOWFALL (IN)
YESTERDAY 0.0 3.0 2008 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 20 24 -4 14
MONTH TO DATE 358 477 -119 448
SINCE DEC 1 358 477 -119 448
SINCE JUL 1 1272 1538 -266 1489
COOLING
YESTERDAY 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 8 RESULTANT WIND DIRECTION S (170)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 600 PM
LOWEST 71 1200 PM
AVERAGE 84
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 57 2005
MINIMUM TEMPERATURE (F) 37 14 1983
SUNRISE AND SUNSET
DECEMBER 22 2025......SUNRISE 755 AM PST SUNSET 422 PM PST
DECEMBER 23 2025......SUNRISE 755 AM PST SUNSET 422 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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