{"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":"2026-10-31","window":{"date":"2026-10-31","timezone":"America/Los_Angeles","dayStartUtc":"2026-10-31T07:00:00.000Z","dayEndUtc":"2026-11-01T07:00:00.000Z","utcOffsetStart":"-07:00","utcOffsetEnd":"-07:00","hours":24},"complete":true,"values":{"tmax":12.2,"tmaxAt":"2026-10-31T21:53:00.000Z","tmin":1.1,"tminAt":"2026-10-31T14:41:00.000Z","tavg":6.1,"humidityMean":91.5,"windMean":2.7,"windMax":5.1,"windMaxAt":"2026-11-01T00:53:00.000Z","precipObservedCount":0,"nObservations":31,"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":"2026-10-31T21:53:00.000Z","obsTimeLocal":"2026-10-31T14:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 312153Z 35007KT 10SM BKN240 12/07 A2996 RMK AO2 SLP152 T01220067","temp":12.2,"dewpoint":6.7,"humidity":69,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-31T14:41:00.000Z","obsTimeLocal":"2026-10-31T07:41:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 311441Z 01007KT 1/4SM R16L/0700V1600FT FG VV001 01/01 A3001 RMK AO2 T00110006","temp":1.1,"dewpoint":0.6,"humidity":96,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-11-01T00:53:00.000Z","obsTimeLocal":"2026-10-31T17:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010053Z 34010KT 10SM FEW100 SCT240 08/06 A2995 RMK AO2 SLP150 T00830061","temp":8.3,"dewpoint":6.1,"humidity":86,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-11-01T10:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"9176fdf035529383","lastChangedAt":"2026-11-01T06:56:38.368Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KSEA/2026-10-31?format=record","status":"anchored","sha256":"3f31c66ca0108d4e29369a3dcf1999d13188fced69f1715306f94654b92c7ab9","revision":"9176fdf035529383","flareTxHash":"0x42885942905a25b19717f8fc7857efc220f596fecdf3bd9f5122cee821bb6876","flareBlock":73833169,"anchoredAt":"2026-11-05T21:01:40.919Z","explorer":"https://flare-explorer.flare.network/tx/0x42885942905a25b19717f8fc7857efc220f596fecdf3bd9f5122cee821bb6876","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":31,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-31T21:53:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-31T14:41:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":12.2,"tmin":1.1,"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":12.22,"tmin":1.11,"precip":0,"corrected":false,"issuedAt":"2026-11-01T08:27:00.000Z","html":"https://weathermarket.io/nws-cli/KSEA/2026-10-31","json":"https://weathermarket.io/api/nws-cli/KSEA/2026-10-31"},"observations":[{"obsTimeUtc":"2026-10-31T07:53:00.000Z","obsTimeLocal":"2026-10-31T00:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 310753Z 06003KT 10SM CLR 06/05 A2998 RMK AO2 SLP160 T00560050 400940056","temp":5.6,"dewpoint":5,"humidity":96,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T08:53:00.000Z","obsTimeLocal":"2026-10-31T01:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 310853Z 00000KT 8SM CLR 04/04 A2999 RMK AO2 SLP163 T00440044 53005","temp":4.4,"dewpoint":4.4,"humidity":100,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T09:53:00.000Z","obsTimeLocal":"2026-10-31T02:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 310953Z 12004KT 10SM CLR 04/04 A2999 RMK AO2 SLP164 T00440044","temp":4.4,"dewpoint":4.4,"humidity":100,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T10:53:00.000Z","obsTimeLocal":"2026-10-31T03:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311053Z 12007KT 10SM CLR 05/03 A2999 RMK AO2 SLP163 T00500028","temp":5,"dewpoint":2.8,"humidity":86,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T11:53:00.000Z","obsTimeLocal":"2026-10-31T04:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311153Z 12005KT 10SM FEW250 05/03 A2999 RMK AO2 SLP163 70054 T00500028 10078 20039 50000","temp":5,"dewpoint":2.8,"humidity":86,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T12:53:00.000Z","obsTimeLocal":"2026-10-31T05:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311253Z 06004KT 8SM FEW250 03/02 A3000 RMK AO2 SLP167 T00330022","temp":3.3,"dewpoint":2.2,"humidity":92,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T13:53:00.000Z","obsTimeLocal":"2026-10-31T06:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311353Z 03004KT 7SM MIFG CLR 03/02 A3001 RMK AO2 SLP169 T00280022","temp":2.8,"dewpoint":2.2,"humidity":96,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T14:14:00.000Z","obsTimeLocal":"2026-10-31T07:14:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 311414Z 04005KT 1 1/2SM BR FEW160 03/03 A3001 RMK AO2 T00330028","temp":3.3,"dewpoint":2.8,"humidity":97,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T14:19:00.000Z","obsTimeLocal":"2026-10-31T07:19:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 311419Z 03004KT 3/4SM R16L/P6000FT BR VV001 03/03 A3001 RMK AO2 VIS 1/4V5 T00330028","temp":3.3,"dewpoint":2.8,"humidity":97,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T14:41:00.000Z","obsTimeLocal":"2026-10-31T07:41:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 311441Z 01007KT 1/4SM R16L/0700V1600FT FG VV001 01/01 A3001 RMK AO2 T00110006","temp":1.1,"dewpoint":0.6,"humidity":96,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T14:53:00.000Z","obsTimeLocal":"2026-10-31T07:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311453Z 01005KT 1/4SM R16L/0600V1200FT FG VV001 02/02 A3001 RMK AO2 SLP172 T00220017 51008","temp":2.2,"dewpoint":1.7,"humidity":96,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T15:04:00.000Z","obsTimeLocal":"2026-10-31T08:04:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 311504Z 01006KT 1/8SM R16L/0600V1000FT FG VV001 02/02 A3001 RMK AO2 T00220022","temp":2.2,"dewpoint":2.2,"humidity":100,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T15:53:00.000Z","obsTimeLocal":"2026-10-31T08:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311553Z 02004KT 1/8SM R16L/0700V1200FT FG VV001 04/04 A3001 RMK AO2 SLP171 T00440044","temp":4.4,"dewpoint":4.4,"humidity":100,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T16:53:00.000Z","obsTimeLocal":"2026-10-31T09:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311653Z 00000KT 1/4SM R16L/0800V1000FT FG VV001 04/04 A3001 RMK AO2 SLP171 T00440044","temp":4.4,"dewpoint":4.4,"humidity":100,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T17:39:00.000Z","obsTimeLocal":"2026-10-31T10:39:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 311739Z 30003KT 1SM R16L/0800V3000FT BR BKN001 BKN050 BKN120 06/06 A3001 RMK AO2 T00610061","temp":6.1,"dewpoint":6.1,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T17:53:00.000Z","obsTimeLocal":"2026-10-31T10:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311753Z 31003KT 2SM R16L/1600VP6000FT BR SCT001 BKN010 BKN160 06/06 A3001 RMK AO2 SLP171 T00560056 10061 20011 58001","temp":5.6,"dewpoint":5.6,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T18:07:00.000Z","obsTimeLocal":"2026-10-31T11:07:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 311807Z 29003KT 3SM BR SCT001 SCT010 BKN170 06/06 A3001 RMK AO2 T00610061","temp":6.1,"dewpoint":6.1,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T18:53:00.000Z","obsTimeLocal":"2026-10-31T11:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311853Z 32003KT 8SM FEW005 SCT014 BKN140 08/07 A3001 RMK AO2 SLP170 T00780072","temp":7.8,"dewpoint":7.2,"humidity":96,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T19:53:00.000Z","obsTimeLocal":"2026-10-31T12:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 311953Z 31005KT 10SM FEW005 SCT016 BKN160 09/08 A2999 RMK AO2 SLP164 T00890078","temp":8.9,"dewpoint":7.8,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T20:53:00.000Z","obsTimeLocal":"2026-10-31T13:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 312053Z 31005KT 10SM FEW020 SCT060 BKN200 11/08 A2998 RMK AO2 SLP159 T01110078 58012","temp":11.1,"dewpoint":7.8,"humidity":80,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T21:53:00.000Z","obsTimeLocal":"2026-10-31T14:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 312153Z 35007KT 10SM BKN240 12/07 A2996 RMK AO2 SLP152 T01220067","temp":12.2,"dewpoint":6.7,"humidity":69,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T22:53:00.000Z","obsTimeLocal":"2026-10-31T15:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 312253Z 34009KT 10SM FEW100 BKN240 12/07 A2995 RMK AO2 SLP148 T01170067","temp":11.7,"dewpoint":6.7,"humidity":71,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T23:53:00.000Z","obsTimeLocal":"2026-10-31T16:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 312353Z 34009KT 10SM FEW100 BKN240 10/06 A2995 RMK AO2 SLP149 T01000061 10122 20056 55009","temp":10,"dewpoint":6.1,"humidity":77,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T00:53:00.000Z","obsTimeLocal":"2026-10-31T17:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010053Z 34010KT 10SM FEW100 SCT240 08/06 A2995 RMK AO2 SLP150 T00830061","temp":8.3,"dewpoint":6.1,"humidity":86,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T01:53:00.000Z","obsTimeLocal":"2026-10-31T18:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010153Z 35009KT 10SM FEW100 SCT240 07/06 A2996 RMK AO2 SLP153 T00720056","temp":7.2,"dewpoint":5.6,"humidity":90,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T02:53:00.000Z","obsTimeLocal":"2026-10-31T19:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010253Z 01010KT 10SM SCT240 08/06 A2996 RMK AO2 SLP152 T00830056 51003 $","temp":8.3,"dewpoint":5.6,"humidity":83,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T03:53:00.000Z","obsTimeLocal":"2026-10-31T20:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010353Z 01009KT 10SM FEW100 SCT200 08/05 A2996 RMK AO2 SLP153 T00780050 $","temp":7.8,"dewpoint":5,"humidity":82,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T04:53:00.000Z","obsTimeLocal":"2026-10-31T21:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010453Z 02006KT 10SM FEW100 FEW200 07/05 A2996 RMK AO2 SLP155 T00670050 $","temp":6.7,"dewpoint":5,"humidity":89,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T05:53:00.000Z","obsTimeLocal":"2026-10-31T22:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010553Z 33004KT 10SM SCT090 SCT220 06/05 A2998 RMK AO2 SLP159 T00560050 10100 20050 53006 $","temp":5.6,"dewpoint":5,"humidity":96,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T06:05:00.000Z","obsTimeLocal":"2026-10-31T23:05:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 010605Z 02004KT 10SM BKN012 OVC090 06/05 A2997 RMK AO2 T00560050 $","temp":5.6,"dewpoint":5,"humidity":96,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T06:53:00.000Z","obsTimeLocal":"2026-10-31T23:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 010653Z 03007KT 10SM BKN011 OVC090 08/06 A2998 RMK AO2 SLP160 T00780056 $","temp":7.8,"dewpoint":5.6,"humidity":86,"wind":3.6,"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/2026-10-31","json":"https://weathermarket.io/api/station/KSEA/2026-10-31","record":"https://weathermarket.io/api/station/KSEA/2026-10-31?format=record","prev":"https://weathermarket.io/station/KSEA/2026-10-30","next":"https://weathermarket.io/station/KSEA/2026-11-01","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=31&year2=2026&month2=11&day2=2&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=31&hora=7&anof=2026&mesf=11&dayf=1&horaf=6&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KSEA"}}}