NWS CLI archive · settlement source
CLISEA · 시애틀 · America/Los_Angeles · ← 2026-10-22 · 2026-10-24 → · All dates for KSEA · JSON · METAR-derived record
Final issued 2026-10-24 04:25:00 EDT · Product id iem:CDUS46-KSEW-240825:SEA:2026-10-23:final · IEM archive
Product id iem:CDUS46-KSEW-240825:SEA:2026-10-23:final · iem-afos · IEM archive
SHA-256 e3b10826c3886c75fb842e5f945cd3f469bb355ef0c4c34ec662979cd34be48e
Product text
CDUS46 KSEW 240825
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
125 AM PDT SAT OCT 24 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 23 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 58 255 PM 73 1965 58 0 62
1992
MINIMUM 44 1159 PM 32 1953 45 -1 52
AVERAGE 51 52 -1 57
PRECIPITATION (IN)
YESTERDAY 0.00 1.24 1960 0.16 -0.16 0.00
MONTH TO DATE 0.08 2.60 -2.52 1.06
SINCE OCT 1 0.08 2.60 -2.52 1.06
SINCE JAN 1 21.67 26.00 -4.33 17.33
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 14 13 1 8
MONTH TO DATE 197 233 -36 228
SINCE SEP 1 330 335 -5 279
SINCE JUL 1 355 390 -35 303
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 2 30 -28 34
SINCE JAN 1 267 263 4 328
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (40)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 3.9
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 46 300 PM
AVERAGE 70
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 72 1965
MINIMUM TEMPERATURE (F) 45 33 1954
SUNRISE AND SUNSET
OCTOBER 24 2026.......SUNRISE 741 AM PDT SUNSET 605 PM PDT
OCTOBER 25 2026.......SUNRISE 743 AM PDT SUNSET 603 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$Product id iem:CDUS46-KSEW-240117:SEA:2026-10-23:interim · iem-afos · IEM archive
SHA-256 1f536aa316ca0e5baaf56ec37dd61da309896ba67c83a0672d1af0d8e4b49ebd
Product text
CDUS46 KSEW 240117
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT FRI OCT 23 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 23 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 58 255 PM 73 1965 58 0 62
1992
MINIMUM 44 1226 AM 32 1953 45 -1 52
AVERAGE 51 52 -1 57
PRECIPITATION (IN)
TODAY 0.00 1.24 1960 0.16 -0.16 0.00
MONTH TO DATE 0.08 2.60 -2.52 1.06
SINCE OCT 1 0.08 2.60 -2.52 1.06
SINCE JAN 1 21.67 26.00 -4.33 17.33
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 14 13 1 8
MONTH TO DATE 197 233 -36 228
SINCE SEP 1 330 335 -5 279
SINCE JUL 1 355 390 -35 303
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 2 30 -28 34
SINCE JAN 1 267 263 4 328
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION N (360)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (320)
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 93 200 AM
LOWEST 46 300 PM
AVERAGE 70
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 72 1965
MINIMUM TEMPERATURE (F) 45 33 1954
SUNRISE AND SUNSET
OCTOBER 23 2026.......SUNRISE 740 AM PDT SUNSET 606 PM PDT
OCTOBER 24 2026.......SUNRISE 741 AM PDT SUNSET 605 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$Settlement source: the final NWS Climatological Report (CLI) for station KSEA for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KSEA/2026-10-23 with links to the NWS product and the IEM archive. A CORRECTED re-issue published before the settlement time supersedes earlier issues.
The settlement value for a date is the latest final CLI issued for that date; a corrected re-issue supersedes earlier issues. Interim same-day products never settle. This is the same rule that fills values.nwsOfficial in /api/station/{icao}/daily.
Every issue is stored verbatim as received - nothing is edited or re-derived. Products are held from 2026-09-01 (backfilled from the IEM AFOS archive) and ingested live from api.weather.gov since 2026-11-10, polled every 30 minutes. A date with no final CLI 14 hours after local midnight is reported as not_issued rather than filled in.