{"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":"2026-10-03","window":{"date":"2026-10-03","timezone":"America/Los_Angeles","dayStartUtc":"2026-10-03T07:00:00.000Z","dayEndUtc":"2026-10-04T07:00:00.000Z","utcOffsetStart":"-07:00","utcOffsetEnd":"-07:00","hours":24},"complete":true,"values":{"tmax":18.9,"tmaxAt":"2026-10-03T22:53:00.000Z","tmin":13.3,"tminAt":"2026-10-03T08:53:00.000Z","tavg":14.9,"humidityMean":86.7,"windMean":3.6,"windMax":4.6,"windMaxAt":"2026-10-03T12:53:00.000Z","precipObservedCount":0,"nObservations":30,"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":"2026-10-03T22:53:00.000Z","obsTimeLocal":"2026-10-03T15:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 032253Z 03005KT 10SM CLR 19/13 A3004 RMK AO2 SLP179 T01890128 $","temp":18.9,"dewpoint":12.8,"humidity":68,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-03T08:53:00.000Z","obsTimeLocal":"2026-10-03T01:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 030853Z 36006KT 10SM SCT240 13/12 A3012 RMK AO2 SLP204 T01330117 56002 $","temp":13.3,"dewpoint":11.7,"humidity":90,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-03T12:53:00.000Z","obsTimeLocal":"2026-10-03T05:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031253Z 01009KT 7SM OVC004 14/13 A3010 RMK AO2 SLP198 T01390128 $","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-04T10:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"d739bb6f07572798","lastChangedAt":"2026-10-04T06:55:38.504Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KSEA/2026-10-03?format=record","status":"anchored","sha256":"4eba072af590ffe47943fdfb1726eb10bb92b780f0a25f076c596b613c0700f1","revision":"d739bb6f07572798","flareTxHash":"0xf68337f160e2eb6b22c70eb0abec0f78dec5435a3b36be0326373e212b3d76c6","flareBlock":71291782,"anchoredAt":"2026-10-04T10:01:29.652Z","explorer":"https://flare-explorer.flare.network/tx/0xf68337f160e2eb6b22c70eb0abec0f78dec5435a3b36be0326373e212b3d76c6","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":30,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-03T22:53:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-03T08:53:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":18.9,"tmin":13.3,"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":19.44,"tmin":12.22,"precip":0,"corrected":false,"issuedAt":"2026-10-04T08:26:00.000Z","html":"https://weathermarket.io/nws-cli/KSEA/2026-10-03","json":"https://weathermarket.io/api/nws-cli/KSEA/2026-10-03"},"observations":[{"obsTimeUtc":"2026-10-03T07:53:00.000Z","obsTimeLocal":"2026-10-03T00:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 030753Z 36007KT 10SM SCT240 14/13 A3012 RMK AO2 SLP204 T01440128 402170111 $","temp":14.4,"dewpoint":12.8,"humidity":90,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T08:53:00.000Z","obsTimeLocal":"2026-10-03T01:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 030853Z 36006KT 10SM SCT240 13/12 A3012 RMK AO2 SLP204 T01330117 56002 $","temp":13.3,"dewpoint":11.7,"humidity":90,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T09:53:00.000Z","obsTimeLocal":"2026-10-03T02:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 030953Z 01007KT 10SM SCT240 14/13 A3012 RMK AO2 SLP203 T01390128 $","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T10:53:00.000Z","obsTimeLocal":"2026-10-03T03:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031053Z 34005KT 10SM FEW010 SCT200 13/13 A3011 RMK AO2 SLP201 T01330128 $","temp":13.3,"dewpoint":12.8,"humidity":97,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T11:53:00.000Z","obsTimeLocal":"2026-10-03T04:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031153Z 04007KT 10SM SCT005 BKN200 14/13 A3010 RMK AO2 SLP199 T01390128 10156 20128 58005 $","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T12:04:00.000Z","obsTimeLocal":"2026-10-03T05:04:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 031204Z 01008KT 10SM BKN005 BKN200 14/13 A3010 RMK AO2 T01390128 $","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T12:17:00.000Z","obsTimeLocal":"2026-10-03T05:17:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 031217Z 32005KT 10SM BKN004 BKN200 13/13 A3011 RMK AO2 T01330128 $","temp":13.3,"dewpoint":12.8,"humidity":97,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T12:53:00.000Z","obsTimeLocal":"2026-10-03T05:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031253Z 01009KT 7SM OVC004 14/13 A3010 RMK AO2 SLP198 T01390128 $","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T13:53:00.000Z","obsTimeLocal":"2026-10-03T06:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031353Z 36007KT 3SM BR OVC001 13/13 A3011 RMK AO2 SLP200 T01330128 $","temp":13.3,"dewpoint":12.8,"humidity":97,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T14:16:00.000Z","obsTimeLocal":"2026-10-03T07:16:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 031416Z 35008KT 2 1/2SM BR OVC001 13/13 A3011 RMK AO2 T01330128 $","temp":13.3,"dewpoint":12.8,"humidity":97,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T14:53:00.000Z","obsTimeLocal":"2026-10-03T07:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031453Z 01007KT 3SM BR OVC001 13/13 A3011 RMK AO2 SLP201 T01330128 53002 $","temp":13.3,"dewpoint":12.8,"humidity":97,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T15:17:00.000Z","obsTimeLocal":"2026-10-03T08:17:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 031517Z 36009KT 6SM BR OVC002 13/13 A3011 RMK AO2 T01330128 $","temp":13.3,"dewpoint":12.8,"humidity":97,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T15:53:00.000Z","obsTimeLocal":"2026-10-03T08:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031553Z 02009KT 8SM OVC003 14/13 A3012 RMK AO2 SLP204 T01390128 $","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T16:32:00.000Z","obsTimeLocal":"2026-10-03T09:32:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 031632Z 02008KT 10SM OVC007 14/12 A3012 RMK AO2 T01440122 $","temp":14.4,"dewpoint":12.2,"humidity":87,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T16:53:00.000Z","obsTimeLocal":"2026-10-03T09:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031653Z 04008KT 10SM OVC006 14/12 A3012 RMK AO2 SLP206 T01440122 $","temp":14.4,"dewpoint":12.2,"humidity":87,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T17:53:00.000Z","obsTimeLocal":"2026-10-03T10:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031753Z 35008KT 8SM OVC006 15/13 A3012 RMK AO2 SLP205 T01500128 10150 20133 50004 $","temp":15,"dewpoint":12.8,"humidity":87,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T18:53:00.000Z","obsTimeLocal":"2026-10-03T11:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031853Z 02008KT 8SM OVC005 14/13 A3011 RMK AO2 SLP201 T01440128 $","temp":14.4,"dewpoint":12.8,"humidity":90,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T19:53:00.000Z","obsTimeLocal":"2026-10-03T12:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 031953Z 02009KT 10SM OVC006 16/13 A3009 RMK AO2 SLP196 T01560128 $","temp":15.6,"dewpoint":12.8,"humidity":83,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T20:53:00.000Z","obsTimeLocal":"2026-10-03T13:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 032053Z 36009KT 10SM SCT010 BKN025 BKN050 17/13 A3008 RMK AO2 SLP191 T01670128 58014 $","temp":16.7,"dewpoint":12.8,"humidity":78,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T21:32:00.000Z","obsTimeLocal":"2026-10-03T14:32:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 032132Z 36008KT 10SM FEW010 SCT025 18/13 A3007 RMK AO2 T01780128 $","temp":17.8,"dewpoint":12.8,"humidity":73,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T21:53:00.000Z","obsTimeLocal":"2026-10-03T14:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 032153Z VRB06KT 10SM CLR 18/13 A3006 RMK AO2 SLP185 T01780128 $","temp":17.8,"dewpoint":12.8,"humidity":73,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T22:53:00.000Z","obsTimeLocal":"2026-10-03T15:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 032253Z 03005KT 10SM CLR 19/13 A3004 RMK AO2 SLP179 T01890128 $","temp":18.9,"dewpoint":12.8,"humidity":68,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T23:53:00.000Z","obsTimeLocal":"2026-10-03T16:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 032353Z 01005KT 10SM CLR 19/13 A3003 RMK AO2 SLP175 T01890128 10194 20144 56016 $","temp":18.9,"dewpoint":12.8,"humidity":68,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T00:53:00.000Z","obsTimeLocal":"2026-10-03T17:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 040053Z 35004KT 10SM CLR 19/13 A3003 RMK AO2 SLP173 T01890128 $","temp":18.9,"dewpoint":12.8,"humidity":68,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T01:53:00.000Z","obsTimeLocal":"2026-10-03T18:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 040153Z 35006KT 10SM CLR 16/12 A3003 RMK AO2 SLP173 T01610122 $","temp":16.1,"dewpoint":12.2,"humidity":78,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T02:53:00.000Z","obsTimeLocal":"2026-10-03T19:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 040253Z 36007KT 10SM CLR 15/12 A3004 RMK AO2 SLP176 T01500122 53001 $","temp":15,"dewpoint":12.2,"humidity":83,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T03:53:00.000Z","obsTimeLocal":"2026-10-03T20:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 040353Z 35007KT 10SM CLR 14/12 A3004 RMK AO2 SLP178 T01440122 $","temp":14.4,"dewpoint":12.2,"humidity":87,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T04:53:00.000Z","obsTimeLocal":"2026-10-03T21:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 040453Z 01009KT 10SM CLR 15/12 A3005 RMK AO2 SLP179 T01500122 $","temp":15,"dewpoint":12.2,"humidity":83,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T05:53:00.000Z","obsTimeLocal":"2026-10-03T22:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 040553Z 35007KT 10SM CLR 13/12 A3005 RMK AO2 SLP182 T01330122 10194 20133 53006 $","temp":13.3,"dewpoint":12.2,"humidity":93,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T06:53:00.000Z","obsTimeLocal":"2026-10-03T23:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 040653Z 01004KT 10SM FEW250 14/12 A3006 RMK AO2 SLP183 T01390117 $","temp":13.9,"dewpoint":11.7,"humidity":87,"wind":2.1,"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/2026-10-03","json":"https://weathermarket.io/api/station/KSEA/2026-10-03","record":"https://weathermarket.io/api/station/KSEA/2026-10-03?format=record","prev":"https://weathermarket.io/station/KSEA/2026-10-02","next":"https://weathermarket.io/station/KSEA/2026-10-04","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=3&year2=2026&month2=10&day2=5&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=3&hora=7&anof=2026&mesf=10&dayf=4&horaf=6&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KSEA"}}}