{"station":{"icao":"KSEA","city":{"slug":"seattle","name":"Seattle","country":"United States"},"timezone":"America/Los_Angeles","lat":47.61,"lon":-122.33,"us":true,"html":"https://weathermarket.io/station/KSEA","json":"https://weathermarket.io/api/station/KSEA","nwsCli":{"html":"https://weathermarket.io/nws-cli/KSEA","json":"https://weathermarket.io/api/nws-cli/KSEA"}},"date":"2026-09-29","window":{"date":"2026-09-29","timezone":"America/Los_Angeles","dayStartUtc":"2026-09-29T07:00:00.000Z","dayEndUtc":"2026-09-30T07:00:00.000Z","utcOffsetStart":"-07:00","utcOffsetEnd":"-07:00","hours":24},"complete":true,"values":{"tmax":17.2,"tmaxAt":"2026-09-29T19:53:00.000Z","tmin":11.7,"tminAt":"2026-09-30T01:53:00.000Z","tavg":14.8,"humidityMean":81.2,"windMean":5.8,"windMax":8.2,"windMaxAt":"2026-09-29T20:53:00.000Z","precipObservedCount":4,"nObservations":36,"maxGapMinutes":60,"units":{"temperature":"°C","wind":"m/s","humidity":"%"},"source":"Extremes over the METAR observations listed in this record (hourly plus special reports) - the same record values.metarDerived carries in /api/station/{icao}/daily"},"extremes":{"tmax":{"obsTimeUtc":"2026-09-29T19:53:00.000Z","obsTimeLocal":"2026-09-29T12:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291953Z 20013KT 10SM BKN024 BKN065 BKN090 17/13 A2992 RMK AO2 SLP137 T01720128 $","temp":17.2,"dewpoint":12.8,"humidity":75,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-09-30T01:53:00.000Z","obsTimeLocal":"2026-09-29T18:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 300153Z 03014KT 9SM SCT005 OVC013 12/11 A2998 RMK AO2 RAE46 SLP157 P0001 T01170106 $","temp":11.7,"dewpoint":10.6,"humidity":93,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-09-29T20:53:00.000Z","obsTimeLocal":"2026-09-29T13:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 292053Z 22016KT 10SM FEW017 BKN022 BKN065 17/13 A2992 RMK AO2 SLP137 T01720133 52002 $","temp":17.2,"dewpoint":13.3,"humidity":78,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-09-30T10:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"1967e0e2a57139e6","lastChangedAt":"2026-09-30T06:56:38.766Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KSEA/2026-09-29?format=record","status":"anchored","sha256":"272a1882be08d4f33653862293fae8063b8f43f735ddfaad740be5ea4d800695","revision":"1967e0e2a57139e6","flareTxHash":"0x249d9e706f59c57e359ac56df8428e8defd3e8c7033908cc096c8a56852b0c82","flareBlock":71105491,"anchoredAt":"2026-10-02T01:01:27.187Z","explorer":"https://flare-explorer.flare.network/tx/0x249d9e706f59c57e359ac56df8428e8defd3e8c7033908cc096c8a56852b0c82","matchesCurrent":true,"note":"GET the record bytes, SHA-256 them, and call SnapshotAnchor.isAnchored(sha256) on Flare - the anchored record is the one to settle on"},"qc":{"summary":{"good":36,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-09-29T19:53:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-09-30T01:53:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":17.2,"tmin":11.7,"differsFromRecord":false},"note":"Flags are attached beside the anchored record and are not part of its bytes; the record's extremes are unchanged. A suspect extreme is usable but worth checking against the raw text (extremes.*.reasons); a bad report is physically impossible and excludingBad shows the extremes without it."},"official":{"status":"issued","tmax":17.22,"tmin":11.67,"precip":0.25,"corrected":false,"issuedAt":"2026-09-30T08:35:00.000Z","html":"https://weathermarket.io/nws-cli/KSEA/2026-09-29","json":"https://weathermarket.io/api/nws-cli/KSEA/2026-09-29"},"observations":[{"obsTimeUtc":"2026-09-29T07:53:00.000Z","obsTimeLocal":"2026-09-29T00:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 290753Z 20015KT 10SM SCT035 BKN045 OVC080 13/11 A2996 RMK AO2 RAE0654 SLP150 P0000 T01280111 401780078 $","temp":12.8,"dewpoint":11.1,"humidity":89,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T08:53:00.000Z","obsTimeLocal":"2026-09-29T01:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 290853Z 19011KT 10SM SCT035 OVC100 14/10 A2994 RMK AO2 SLP144 60000 T01390100 58013 $","temp":13.9,"dewpoint":10,"humidity":77,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T09:26:00.000Z","obsTimeLocal":"2026-09-29T02:26:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 290926Z 18010KT 10SM BKN026 OVC031 14/09 A2993 RMK AO2 T01440094 $","temp":14.4,"dewpoint":9.4,"humidity":72,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T09:53:00.000Z","obsTimeLocal":"2026-09-29T02:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 290953Z 18009G18KT 10SM BKN024 OVC080 15/09 A2993 RMK AO2 SLP139 T01500089 $","temp":15,"dewpoint":8.9,"humidity":67,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T10:53:00.000Z","obsTimeLocal":"2026-09-29T03:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291053Z 20011KT 10SM OVC022 15/11 A2992 RMK AO2 SLP138 T01500106 $","temp":15,"dewpoint":10.6,"humidity":75,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T11:53:00.000Z","obsTimeLocal":"2026-09-29T04:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291153Z 20014G21KT 10SM OVC019 15/11 A2991 RMK AO2 SLP134 60000 T01500111 10150 20128 56010 $","temp":15,"dewpoint":11.1,"humidity":78,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T12:53:00.000Z","obsTimeLocal":"2026-09-29T05:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291253Z 20015KT 10SM BKN020 OVC026 15/11 A2989 RMK AO2 PK WND 19026/1226 SLP128 T01500111 $","temp":15,"dewpoint":11.1,"humidity":78,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T13:53:00.000Z","obsTimeLocal":"2026-09-29T06:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291353Z 20014G24KT 10SM BKN021 BKN026 OVC090 15/11 A2990 RMK AO2 SLP129 T01500111 $","temp":15,"dewpoint":11.1,"humidity":78,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T14:53:00.000Z","obsTimeLocal":"2026-09-29T07:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291453Z 20011KT 10SM FEW016 BKN021 BKN075 14/12 A2990 RMK AO2 SLP129 T01440117 55004 $","temp":14.4,"dewpoint":11.7,"humidity":84,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T15:53:00.000Z","obsTimeLocal":"2026-09-29T08:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291553Z 19011KT 6SM -RA BR BKN016 OVC021 14/13 A2991 RMK AO2 RAB37 SLP133 P0000 T01390128 $","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":5.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T16:07:00.000Z","obsTimeLocal":"2026-09-29T09:07:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 291607Z 19011KT 6SM -DZ BR BKN012 OVC020 14/13 A2989 RMK AO2 RAE01DZB07 P0000 T01390128 $","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":5.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T16:53:00.000Z","obsTimeLocal":"2026-09-29T09:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291653Z 20014KT 10SM BKN011 OVC017 14/13 A2991 RMK AO2 RAE01DZB07E24 SLP133 P0000 T01440133 $","temp":14.4,"dewpoint":13.3,"humidity":93,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T17:53:00.000Z","obsTimeLocal":"2026-09-29T10:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291753Z 19012G21KT 10SM BKN010 OVC016 15/13 A2991 RMK AO2 SLP135 60000 T01500128 10156 20139 51006 $","temp":15,"dewpoint":12.8,"humidity":87,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T18:18:00.000Z","obsTimeLocal":"2026-09-29T11:18:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 291818Z 21014KT 10SM SCT011 BKN016 OVC024 16/13 A2992 RMK AO2 T01560128 $","temp":15.6,"dewpoint":12.8,"humidity":83,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T18:48:00.000Z","obsTimeLocal":"2026-09-29T11:48:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 291848Z 20014G23KT 10SM SCT020 BKN065 BKN110 16/13 A2991 RMK AO2 $","temp":16,"dewpoint":13,"humidity":82,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T18:53:00.000Z","obsTimeLocal":"2026-09-29T11:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291853Z 21013G22KT 10SM SCT020 BKN065 BKN110 16/13 A2992 RMK AO2 SLP135 T01610128 $","temp":16.1,"dewpoint":12.8,"humidity":81,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T19:14:00.000Z","obsTimeLocal":"2026-09-29T12:14:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 291914Z 21013G21KT 10SM BKN025 BKN065 BKN095 17/13 A2992 RMK AO2 BKN025 V SCT T01670128 $","temp":16.7,"dewpoint":12.8,"humidity":78,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T19:53:00.000Z","obsTimeLocal":"2026-09-29T12:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 291953Z 20013KT 10SM BKN024 BKN065 BKN090 17/13 A2992 RMK AO2 SLP137 T01720128 $","temp":17.2,"dewpoint":12.8,"humidity":75,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T20:53:00.000Z","obsTimeLocal":"2026-09-29T13:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 292053Z 22016KT 10SM FEW017 BKN022 BKN065 17/13 A2992 RMK AO2 SLP137 T01720133 52002 $","temp":17.2,"dewpoint":13.3,"humidity":78,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T21:53:00.000Z","obsTimeLocal":"2026-09-29T14:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 292153Z 21011G20KT 10SM FEW016 BKN020 BKN030 17/13 A2991 RMK AO2 SLP135 T01720133 $","temp":17.2,"dewpoint":13.3,"humidity":78,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T22:37:00.000Z","obsTimeLocal":"2026-09-29T15:37:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 292237Z 21015G21KT 10SM SCT017 OVC055 17/13 A2992 RMK AO2 T01670133 $","temp":16.7,"dewpoint":13.3,"humidity":80,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T22:53:00.000Z","obsTimeLocal":"2026-09-29T15:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 292253Z 23013G21KT 10SM SCT017 OVC055 17/13 A2993 RMK AO2 SLP140 T01670133 $","temp":16.7,"dewpoint":13.3,"humidity":80,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T23:15:00.000Z","obsTimeLocal":"2026-09-29T16:15:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 292315Z 23012G19KT 10SM BKN017 OVC050 17/13 A2993 RMK AO2 T01670133 $","temp":16.7,"dewpoint":13.3,"humidity":80,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T23:39:00.000Z","obsTimeLocal":"2026-09-29T16:39:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 292339Z 23013G20KT 10SM BKN012 OVC016 16/14 A2994 RMK AO2 T01610139 $","temp":16.1,"dewpoint":13.9,"humidity":87,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-29T23:53:00.000Z","obsTimeLocal":"2026-09-29T16:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 292353Z 23013G21KT 10SM BKN011 OVC017 16/14 A2994 RMK AO2 SLP144 T01610139 10172 20150 53007 $","temp":16.1,"dewpoint":13.9,"humidity":87,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T00:37:00.000Z","obsTimeLocal":"2026-09-29T17:37:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 300037Z 31004KT 10SM BKN009 OVC016 16/13 A2996 RMK AO2 T01560133 $","temp":15.6,"dewpoint":13.3,"humidity":86,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T00:53:00.000Z","obsTimeLocal":"2026-09-29T17:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 300053Z 02011KT 5SM -RA BR BKN007 OVC016 14/12 A2996 RMK AO2 RAB51 SLP151 P0000 T01440122 $","temp":14.4,"dewpoint":12.2,"humidity":87,"wind":5.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T01:14:00.000Z","obsTimeLocal":"2026-09-29T18:14:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 300114Z 02011KT 3SM -RA BR BKN005 OVC008 13/12 A2996 RMK AO2 P0000 T01330122 $","temp":13.3,"dewpoint":12.2,"humidity":93,"wind":5.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T01:53:00.000Z","obsTimeLocal":"2026-09-29T18:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 300153Z 03014KT 9SM SCT005 OVC013 12/11 A2998 RMK AO2 RAE46 SLP157 P0001 T01170106 $","temp":11.7,"dewpoint":10.6,"humidity":93,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T02:53:00.000Z","obsTimeLocal":"2026-09-29T19:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 300253Z 05009KT 10SM OVC014 12/10 A2999 RMK AO2 SLP162 60001 T01220100 51017 $","temp":12.2,"dewpoint":10,"humidity":86,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T03:09:00.000Z","obsTimeLocal":"2026-09-29T20:09:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 300309Z 05009KT 10SM OVC017 13/09 A3000 RMK AO2 T01280094 $","temp":12.8,"dewpoint":9.4,"humidity":80,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T03:53:00.000Z","obsTimeLocal":"2026-09-29T20:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 300353Z 06011KT 10SM OVC018 13/09 A3000 RMK AO2 SLP164 T01280094 $","temp":12.8,"dewpoint":9.4,"humidity":80,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T04:53:00.000Z","obsTimeLocal":"2026-09-29T21:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 300453Z 06009KT 10SM OVC024 13/09 A3000 RMK AO2 SLP166 T01330089 $","temp":13.3,"dewpoint":8.9,"humidity":75,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T05:53:00.000Z","obsTimeLocal":"2026-09-29T22:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 300553Z 07004KT 10SM OVC026 14/09 A3001 RMK AO2 SLP169 60001 T01390089 10161 20117 53007 $","temp":13.9,"dewpoint":8.9,"humidity":72,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T06:33:00.000Z","obsTimeLocal":"2026-09-29T23:33:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 300633Z 04003KT 10SM BKN031 OVC038 14/08 A3003 RMK AO2 T01390083 $","temp":13.9,"dewpoint":8.3,"humidity":69,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-30T06:53:00.000Z","obsTimeLocal":"2026-09-29T23:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 300653Z 07003KT 10SM OVC032 14/08 A3003 RMK AO2 SLP174 T01390083 $","temp":13.9,"dewpoint":8.3,"humidity":69,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null}],"about":{"record":"Station-day record: the daily extremes over every METAR observation (hourly plus special reports) received for the station's local calendar day - local midnight to local midnight, daylight saving applied. Temperatures are whole degrees Celsius as reported in METAR; a short-lived peak between reports can be missed. This is not a model or an aggregate - every value points at the report that produced it, and every report in the day is listed verbatim.","settlementRule":"The settlement value is the daily maximum (or minimum) of this record once it is final: the local day has ended and the 3-hour correction hold has passed. A day whose longest gap between reports exceeds the station's normal interval plus 30 minutes is final but flagged not settleable - a market should treat it as a review case. Once final, the canonical record bytes are hashed (SHA-256) and the hash is written to the SnapshotAnchor contract on Flare; the anchored record is the settlement record even if reports change afterwards (matchesCurrent then reads false). US markets usually settle on the official NWS CLI value instead - see the NWS CLI archive for this station; both values are shown side by side.","verify":["Every METAR in the day is listed with its raw text; compare it with the independent archives linked under links.external (IEM ASOS archive, Ogimet).","GET links.record for the canonical record bytes, SHA-256 them and compare with anchor.sha256; call SnapshotAnchor.isAnchored(sha256) on Flare (anchor.contract, anchor.chainId) to confirm the hash is on-chain. anchor.explorer opens the anchoring transaction.","Permalink pattern for market rules: https://weathermarket.io/station/KSEA/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/KSEA/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for KSEA for the contract date (station-local calendar day), as published at https://weathermarket.io/station/KSEA/YYYY-MM-DD with every observation used, the finality status and the Flare anchor of the record. The daily value is the extreme over the hourly and special METAR reports in that day; a short-lived peak between reports may be missed. If the record is not final and settleable by the resolution deadline, the market is flagged for review."},"links":{"html":"https://weathermarket.io/station/KSEA/2026-09-29","json":"https://weathermarket.io/api/station/KSEA/2026-09-29","record":"https://weathermarket.io/api/station/KSEA/2026-09-29?format=record","prev":"https://weathermarket.io/station/KSEA/2026-09-28","next":"https://weathermarket.io/station/KSEA/2026-09-30","station":"https://weathermarket.io/station/KSEA","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=SEA&data=metar&year1=2026&month1=9&day1=29&year2=2026&month2=10&day2=1&tz=Etc%2FUTC&format=onlycomma&latlon=no&elev=no&missing=M&trace=T&direct=no&report_type=3&report_type=4","ogimet":"https://www.ogimet.com/display_metars2.php?lang=en&lugar=KSEA&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=9&day=29&hora=7&anof=2026&mesf=9&dayf=30&horaf=6&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KSEA"}}}