{"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":"2026-10-19","window":{"date":"2026-10-19","timezone":"America/Los_Angeles","dayStartUtc":"2026-10-19T07:00:00.000Z","dayEndUtc":"2026-10-20T07:00:00.000Z","utcOffsetStart":"-07:00","utcOffsetEnd":"-07:00","hours":24},"complete":true,"values":{"tmax":16.7,"tmaxAt":"2026-10-19T22:53:00.000Z","tmin":8.3,"tminAt":"2026-10-19T11:53:00.000Z","tavg":11.6,"humidityMean":73,"windMean":2.6,"windMax":6.2,"windMaxAt":"2026-10-20T03:53:00.000Z","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":"2026-10-19T22:53:00.000Z","obsTimeLocal":"2026-10-19T15:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 192253Z 31007KT 10SM FEW030 FEW080 SCT210 17/07 A2997 RMK AO2 SLP156 T01670067","temp":16.7,"dewpoint":6.7,"humidity":52,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-19T11:53:00.000Z","obsTimeLocal":"2026-10-19T04:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191153Z 00000KT 10SM FEW065 BKN110 OVC150 08/06 A2995 RMK AO2 SLP147 T00830061 10106 20083 53004 $","temp":8.3,"dewpoint":6.1,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-20T03:53:00.000Z","obsTimeLocal":"2026-10-19T20:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 200353Z 02012KT 10SM FEW150 SCT230 12/05 A3003 RMK AO2 SLP174 T01170050 $","temp":11.7,"dewpoint":5,"humidity":63,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-20T10:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"b92cef8173dcd88c","lastChangedAt":"2026-10-20T06:55:39.323Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KSEA/2026-10-19?format=record","status":"anchored","sha256":"f85b7da7491c68f90db3e7a245857b36c9fd86cad6ec88179ffb61c20ed334e7","revision":"b92cef8173dcd88c","flareTxHash":"0x398af9b147dc42ce959310a3e20be470a2b6c4660e63930778d4f5bd2698f645","flareBlock":72547413,"anchoredAt":"2026-10-20T10:02:35.603Z","explorer":"https://flare-explorer.flare.network/tx/0x398af9b147dc42ce959310a3e20be470a2b6c4660e63930778d4f5bd2698f645","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":"2026-10-19T22:53:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-19T11:53:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":16.7,"tmin":8.3,"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":16.67,"tmin":7.78,"precip":0,"corrected":false,"issuedAt":"2026-10-20T08:26:00.000Z","html":"https://weathermarket.io/nws-cli/KSEA/2026-10-19","json":"https://weathermarket.io/api/nws-cli/KSEA/2026-10-19"},"observations":[{"obsTimeUtc":"2026-10-19T07:53:00.000Z","obsTimeLocal":"2026-10-19T00:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 190753Z 01007KT 10SM OVC160 10/07 A2993 RMK AO2 SLP142 T01000072 401560061 $","temp":10,"dewpoint":7.2,"humidity":83,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T08:53:00.000Z","obsTimeLocal":"2026-10-19T01:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 190853Z 30003KT 10SM BKN150 OVC210 09/07 A2994 RMK AO2 SLP143 T00890072 55007 $","temp":8.9,"dewpoint":7.2,"humidity":89,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T09:53:00.000Z","obsTimeLocal":"2026-10-19T02:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 190953Z 00000KT 10SM SCT070 BKN120 BKN150 OVC210 09/07 A2993 RMK AO2 SLP141 T00890072 $","temp":8.9,"dewpoint":7.2,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T10:53:00.000Z","obsTimeLocal":"2026-10-19T03:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191053Z 13006KT 10SM SCT070 BKN120 OVC230 09/07 A2994 RMK AO2 SLP144 T00890067 $","temp":8.9,"dewpoint":6.7,"humidity":86,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T11:53:00.000Z","obsTimeLocal":"2026-10-19T04:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191153Z 00000KT 10SM FEW065 BKN110 OVC150 08/06 A2995 RMK AO2 SLP147 T00830061 10106 20083 53004 $","temp":8.3,"dewpoint":6.1,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T12:53:00.000Z","obsTimeLocal":"2026-10-19T05:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191253Z 09006KT 10SM BKN065 09/06 A2993 RMK AO2 SLP144 T00890061 $","temp":8.9,"dewpoint":6.1,"humidity":83,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T13:53:00.000Z","obsTimeLocal":"2026-10-19T06:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191353Z 00000KT 10SM BKN065 BKN110 09/07 A2995 RMK AO2 SLP149 T00890067","temp":8.9,"dewpoint":6.7,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T14:53:00.000Z","obsTimeLocal":"2026-10-19T07:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191453Z 04003KT 10SM FEW025 SCT065 BKN130 BKN220 09/07 A2996 RMK AO2 SLP153 T00890067 53005","temp":8.9,"dewpoint":6.7,"humidity":86,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T15:53:00.000Z","obsTimeLocal":"2026-10-19T08:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191553Z 33003KT 10SM FEW025 FEW065 SCT130 BKN220 10/08 A2997 RMK AO2 SLP156 T01000083","temp":10,"dewpoint":8.3,"humidity":89,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T16:53:00.000Z","obsTimeLocal":"2026-10-19T09:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191653Z 00000KT 10SM FEW025 FEW100 SCT140 SCT220 11/08 A2998 RMK AO2 SLP160 ACSL DSNT SE T01110083","temp":11.1,"dewpoint":8.3,"humidity":83,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T17:53:00.000Z","obsTimeLocal":"2026-10-19T10:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191753Z 25003KT 10SM FEW010 FEW230 13/08 A2999 RMK AO2 SLP161 T01280078 10128 20078 51009","temp":12.8,"dewpoint":7.8,"humidity":72,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T18:53:00.000Z","obsTimeLocal":"2026-10-19T11:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191853Z VRB05KT 10SM FEW010 FEW140 SCT230 14/07 A3000 RMK AO2 SLP164 ACSL DSNT SE T01390067","temp":13.9,"dewpoint":6.7,"humidity":62,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T19:53:00.000Z","obsTimeLocal":"2026-10-19T12:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 191953Z 26003KT 10SM FEW020 FEW120 SCT230 15/07 A2999 RMK AO2 SLP162 T01500067","temp":15,"dewpoint":6.7,"humidity":58,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T20:53:00.000Z","obsTimeLocal":"2026-10-19T13:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 192053Z VRB03KT 10SM FEW025 FEW120 SCT230 16/07 A2999 RMK AO2 SLP161 T01610067 50000","temp":16.1,"dewpoint":6.7,"humidity":54,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T21:53:00.000Z","obsTimeLocal":"2026-10-19T14:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 192153Z 24004KT 10SM FEW030 FEW070 SCT210 16/07 A2998 RMK AO2 SLP157 T01610067","temp":16.1,"dewpoint":6.7,"humidity":54,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T22:53:00.000Z","obsTimeLocal":"2026-10-19T15:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 192253Z 31007KT 10SM FEW030 FEW080 SCT210 17/07 A2997 RMK AO2 SLP156 T01670067","temp":16.7,"dewpoint":6.7,"humidity":52,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T23:53:00.000Z","obsTimeLocal":"2026-10-19T16:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 192353Z 34005KT 10SM FEW030 FEW080 SCT210 16/07 A2999 RMK AO2 SLP162 T01610072 10167 20128 53000","temp":16.1,"dewpoint":7.2,"humidity":56,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T00:53:00.000Z","obsTimeLocal":"2026-10-19T17:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 200053Z 35008KT 10SM FEW070 FEW150 SCT230 14/06 A3000 RMK AO2 SLP167 T01390061","temp":13.9,"dewpoint":6.1,"humidity":59,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T01:53:00.000Z","obsTimeLocal":"2026-10-19T18:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 200153Z 36008KT 10SM FEW150 BKN230 12/04 A3002 RMK AO2 SLP172 T01220044","temp":12.2,"dewpoint":4.4,"humidity":59,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T02:53:00.000Z","obsTimeLocal":"2026-10-19T19:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 200253Z 01008KT 10SM FEW150 SCT230 11/04 A3002 RMK AO2 SLP173 T01110044 51010","temp":11.1,"dewpoint":4.4,"humidity":63,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T03:53:00.000Z","obsTimeLocal":"2026-10-19T20:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 200353Z 02012KT 10SM FEW150 SCT230 12/05 A3003 RMK AO2 SLP174 T01170050 $","temp":11.7,"dewpoint":5,"humidity":63,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T04:53:00.000Z","obsTimeLocal":"2026-10-19T21:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 200453Z 03010KT 10SM FEW150 SCT250 11/07 A3004 RMK AO2 SLP177 T01110067 $","temp":11.1,"dewpoint":6.7,"humidity":74,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T05:53:00.000Z","obsTimeLocal":"2026-10-19T22:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 200553Z 02010KT 10SM FEW150 SCT250 11/07 A3006 RMK AO2 SLP185 T01060072 10167 20106 53013 $","temp":10.6,"dewpoint":7.2,"humidity":79,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T06:53:00.000Z","obsTimeLocal":"2026-10-19T23:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 200653Z 01009KT 10SM SCT250 09/07 A3006 RMK AO2 SLP187 T00940072 $","temp":9.4,"dewpoint":7.2,"humidity":86,"wind":4.6,"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/2026-10-19","json":"https://weathermarket.io/api/station/KSEA/2026-10-19","record":"https://weathermarket.io/api/station/KSEA/2026-10-19?format=record","prev":"https://weathermarket.io/station/KSEA/2026-10-18","next":"https://weathermarket.io/station/KSEA/2026-10-20","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=19&year2=2026&month2=10&day2=21&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=19&hora=7&anof=2026&mesf=10&dayf=20&horaf=6&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KSEA"}}}