172
CDUS46 KSEW 190119
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
619 PM PDT SAT OCT 18 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 18 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 54 338 PM 71 2023 60 -6 53
MINIMUM 45 343 AM 32 1949 47 -2 44
AVERAGE 50 53 -3 49
PRECIPITATION (IN)
TODAY 0.02 2.23 1947 0.13 -0.11 0.07
MONTH TO DATE 0.62 1.88 -1.26 0.99
SINCE OCT 1 0.62 1.88 -1.26 0.99
SINCE JAN 1 16.89 25.28 -8.39 19.77
SNOWFALL (IN)
TODAY 0.0 MM MM 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 15 12 3 16
MONTH TO DATE 175 169 6 161
SINCE SEP 1 226 271 -45 267
SINCE JUL 1 250 326 -76 305
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 34 30 4 42
SINCE JAN 1 328 263 65 315
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WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 400 AM
LOWEST 64 200 PM
AVERAGE 77
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 72 2014
MINIMUM TEMPERATURE (F) 46 28 1949
SUNRISE AND SUNSET
OCTOBER 18 2025.......SUNRISE 733 AM PDT SUNSET 615 PM PDT
OCTOBER 19 2025.......SUNRISE 734 AM PDT SUNSET 613 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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