621
CDUS46 KSEW 170933
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
133 AM PST SAT JAN 17 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 16 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 53 217 PM 56 2018 48 5 43
MINIMUM 39 1133 PM 13 1950 38 1 33
AVERAGE 46 43 3 38
PRECIPITATION (IN)
YESTERDAY 0.00 1.78 1958 0.19 -0.19 0.03
MONTH TO DATE 3.31 3.06 0.25 1.04
SINCE OCT 1 20.09 19.00 1.09 14.44
SINCE JAN 1 3.31 3.06 0.25 1.04
SNOWFALL (IN)
YESTERDAY 0.0 3.5 1954 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 19 22 -3 27
MONTH TO DATE 314 360 -46 372
SINCE DEC 1 920 1071 -151 1018
SINCE JUL 1 1834 2132 -298 2059
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
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WIND (MPH)
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 13.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1200 AM
LOWEST 54 200 PM
AVERAGE 76
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 48 58 1946
MINIMUM TEMPERATURE (F) 38 15 1950
SUNRISE AND SUNSET
JANUARY 17 2026.......SUNRISE 751 AM PST SUNSET 449 PM PST
JANUARY 18 2026.......SUNRISE 750 AM PST SUNSET 450 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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