{"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":"2026-10-01","window":{"date":"2026-10-01","timezone":"America/Los_Angeles","dayStartUtc":"2026-10-01T07:00:00.000Z","dayEndUtc":"2026-10-02T07:00:00.000Z","utcOffsetStart":"-07:00","utcOffsetEnd":"-07:00","hours":24},"complete":true,"values":{"tmax":19.4,"tmaxAt":"2026-10-01T21:53:00.000Z","tmin":11.1,"tminAt":"2026-10-01T10:53:00.000Z","tavg":14.8,"humidityMean":73.5,"windMean":1.2,"windMax":3.6,"windMaxAt":"2026-10-01T07:53:00.000Z","precipObservedCount":0,"nObservations":24,"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":"2026-10-01T21:53:00.000Z","obsTimeLocal":"2026-10-01T14:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 012153Z 00000KT 10SM SCT090 BKN130 BKN220 19/09 A3005 RMK AO2 SLP182 ACSL DSNT SE T01940089 $","temp":19.4,"dewpoint":8.9,"humidity":51,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-01T10:53:00.000Z","obsTimeLocal":"2026-10-01T03:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011053Z 00000KT 10SM SCT090 SCT120 BKN180 OVC240 11/09 A3008 RMK AO2 SLP190 T01110094 $","temp":11.1,"dewpoint":9.4,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-01T07:53:00.000Z","obsTimeLocal":"2026-10-01T00:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010753Z 04007KT 10SM BKN120 OVC170 13/09 A3009 RMK AO2 SLP195 T01280094 401830094 $","temp":12.8,"dewpoint":9.4,"humidity":80,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-02T10:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"bed9d4a230e47c6f","lastChangedAt":"2026-10-02T06:56:38.406Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KSEA/2026-10-01?format=record","status":"anchored","sha256":"40aa012240d4b6cda8af1027b7da54c209fe86f1b4f0dd78002ce69b9d76c802","revision":"bed9d4a230e47c6f","flareTxHash":"0xd5ba2bcf8addab540541c3b2f9a43b05efe09f7dad2c98f53ef2a8f1049e7da4","flareBlock":71135375,"anchoredAt":"2026-10-02T10:01:30.430Z","explorer":"https://flare-explorer.flare.network/tx/0xd5ba2bcf8addab540541c3b2f9a43b05efe09f7dad2c98f53ef2a8f1049e7da4","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":24,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-01T21:53:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-01T10:53:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":19.4,"tmin":11.1,"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":20,"tmin":10.56,"precip":0,"corrected":false,"issuedAt":"2026-10-02T08:27:00.000Z","html":"https://weathermarket.io/nws-cli/KSEA/2026-10-01","json":"https://weathermarket.io/api/nws-cli/KSEA/2026-10-01"},"observations":[{"obsTimeUtc":"2026-10-01T07:53:00.000Z","obsTimeLocal":"2026-10-01T00:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010753Z 04007KT 10SM BKN120 OVC170 13/09 A3009 RMK AO2 SLP195 T01280094 401830094 $","temp":12.8,"dewpoint":9.4,"humidity":80,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T08:53:00.000Z","obsTimeLocal":"2026-10-01T01:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010853Z 03006KT 10SM SCT100 BKN160 OVC240 12/09 A3009 RMK AO2 SLP193 T01220094 58003 $","temp":12.2,"dewpoint":9.4,"humidity":83,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T09:53:00.000Z","obsTimeLocal":"2026-10-01T02:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010953Z 00000KT 10SM SCT140 BKN200 OVC240 12/09 A3008 RMK AO2 SLP192 T01170094 $","temp":11.7,"dewpoint":9.4,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T10:53:00.000Z","obsTimeLocal":"2026-10-01T03:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011053Z 00000KT 10SM SCT090 SCT120 BKN180 OVC240 11/09 A3008 RMK AO2 SLP190 T01110094 $","temp":11.1,"dewpoint":9.4,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T11:53:00.000Z","obsTimeLocal":"2026-10-01T04:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011153Z 00000KT 10SM BKN070 BKN085 OVC170 11/09 A3007 RMK AO2 SLP189 T01110094 10128 20106 56004 $","temp":11.1,"dewpoint":9.4,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T12:53:00.000Z","obsTimeLocal":"2026-10-01T05:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011253Z 00000KT 10SM BKN065 BKN080 OVC170 11/09 A3007 RMK AO2 SLP190 T01110094 $","temp":11.1,"dewpoint":9.4,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T13:53:00.000Z","obsTimeLocal":"2026-10-01T06:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011353Z 00000KT 10SM BKN060 OVC170 12/10 A3007 RMK AO2 SLP190 T01170100 $","temp":11.7,"dewpoint":10,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T14:53:00.000Z","obsTimeLocal":"2026-10-01T07:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011453Z 32003KT 10SM BKN060 BKN080 BKN140 OVC200 12/10 A3008 RMK AO2 SLP191 ACSL DSNT SE T01170100 53001 $","temp":11.7,"dewpoint":10,"humidity":89,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T15:53:00.000Z","obsTimeLocal":"2026-10-01T08:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011553Z 31003KT 10SM BKN055 BKN130 BKN200 12/10 A3008 RMK AO2 SLP193 ACSL DSNT SE T01220100 $","temp":12.2,"dewpoint":10,"humidity":86,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T16:53:00.000Z","obsTimeLocal":"2026-10-01T09:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011653Z 00000KT 10SM FEW055 SCT110 SCT140 BKN220 14/10 A3008 RMK AO2 SLP194 ACSL DSNT SE T01390100 $","temp":13.9,"dewpoint":10,"humidity":77,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T17:53:00.000Z","obsTimeLocal":"2026-10-01T10:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011753Z VRB04KT 10SM FEW060 FEW130 BKN220 16/11 A3008 RMK AO2 SLP192 ACSL DSNT SE T01560106 10156 20106 50001 $","temp":15.6,"dewpoint":10.6,"humidity":72,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T18:53:00.000Z","obsTimeLocal":"2026-10-01T11:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011853Z VRB04KT 10SM FEW130 BKN220 17/11 A3008 RMK AO2 SLP191 ACSL DSNT SE T01670106 $","temp":16.7,"dewpoint":10.6,"humidity":67,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T19:53:00.000Z","obsTimeLocal":"2026-10-01T12:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 011953Z 00000KT 10SM SCT095 SCT130 BKN220 18/10 A3007 RMK AO2 SLP188 ACSL DSNT SE T01780100 $","temp":17.8,"dewpoint":10,"humidity":60,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T20:53:00.000Z","obsTimeLocal":"2026-10-01T13:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 012053Z 28005KT 10SM SCT085 BKN130 BKN220 19/09 A3007 RMK AO2 SLP186 ACSL DSNT SE T01890094 58004 $","temp":18.9,"dewpoint":9.4,"humidity":54,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T21:53:00.000Z","obsTimeLocal":"2026-10-01T14:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 012153Z 00000KT 10SM SCT090 BKN130 BKN220 19/09 A3005 RMK AO2 SLP182 ACSL DSNT SE T01940089 $","temp":19.4,"dewpoint":8.9,"humidity":51,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T22:53:00.000Z","obsTimeLocal":"2026-10-01T15:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 012253Z 22004KT 10SM FEW085 FEW120 BKN210 19/08 A3003 RMK AO2 SLP174 ACSL DSNT SE T01890083 $","temp":18.9,"dewpoint":8.3,"humidity":50,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-01T23:53:00.000Z","obsTimeLocal":"2026-10-01T16:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 012353Z 29006KT 10SM FEW085 FEW130 BKN210 19/09 A3002 RMK AO2 SLP169 ACSL DSNT SE T01940094 10200 20156 57017 $","temp":19.4,"dewpoint":9.4,"humidity":52,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T00:53:00.000Z","obsTimeLocal":"2026-10-01T17:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 020053Z 00000KT 10SM FEW080 FEW130 BKN220 18/10 A3001 RMK AO2 SLP166 ACSL DSNT SE T01830100 $","temp":18.3,"dewpoint":10,"humidity":58,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T01:53:00.000Z","obsTimeLocal":"2026-10-01T18:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 020153Z 00000KT 10SM FEW080 SCT130 BKN240 17/11 A3000 RMK AO2 SLP166 ACSL DSNT SE T01720106 $","temp":17.2,"dewpoint":10.6,"humidity":65,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T02:53:00.000Z","obsTimeLocal":"2026-10-01T19:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 020253Z 29004KT 10SM FEW080 SCT120 SCT230 15/11 A3002 RMK AO2 SLP171 T01500106 53001 $","temp":15,"dewpoint":10.6,"humidity":75,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T03:53:00.000Z","obsTimeLocal":"2026-10-01T20:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 020353Z 00000KT 10SM FEW120 BKN220 17/09 A3000 RMK AO2 SLP165 T01670094 $","temp":16.7,"dewpoint":9.4,"humidity":62,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T04:53:00.000Z","obsTimeLocal":"2026-10-01T21:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 020453Z 36004KT 10SM BKN240 14/11 A3002 RMK AO2 SLP172 T01440106 $","temp":14.4,"dewpoint":10.6,"humidity":78,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T05:53:00.000Z","obsTimeLocal":"2026-10-01T22:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 020553Z 31004KT 10SM BKN240 15/11 A3002 RMK AO2 SLP171 T01500106 10194 20139 53001 $","temp":15,"dewpoint":10.6,"humidity":75,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T06:53:00.000Z","obsTimeLocal":"2026-10-01T23:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 020653Z 00000KT 10SM SCT060 BKN210 13/11 A3002 RMK AO2 SLP169 T01330111 $","temp":13.3,"dewpoint":11.1,"humidity":87,"wind":0,"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/2026-10-01","json":"https://weathermarket.io/api/station/KSEA/2026-10-01","record":"https://weathermarket.io/api/station/KSEA/2026-10-01?format=record","prev":"https://weathermarket.io/station/KSEA/2026-09-30","next":"https://weathermarket.io/station/KSEA/2026-10-02","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=10&day1=1&year2=2026&month2=10&day2=3&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=10&day=1&hora=7&anof=2026&mesf=10&dayf=2&horaf=6&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KSEA"}}}