{"station":{"icao":"KBOS","city":{"slug":"boston","name":"Boston","country":"United States"},"timezone":"America/New_York","lat":42.36,"lon":-71.06,"us":true,"html":"https://weathermarket.io/station/KBOS","json":"https://weathermarket.io/api/station/KBOS","nwsCli":{"html":"https://weathermarket.io/nws-cli/KBOS","json":"https://weathermarket.io/api/nws-cli/KBOS"}},"date":"2026-10-20","window":{"date":"2026-10-20","timezone":"America/New_York","dayStartUtc":"2026-10-20T04:00:00.000Z","dayEndUtc":"2026-10-21T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":16.7,"tmaxAt":"2026-10-20T17:54:00.000Z","tmin":6.7,"tminAt":"2026-10-20T05:54:00.000Z","tavg":11.3,"humidityMean":70.3,"windMean":4.8,"windMax":9.3,"windMaxAt":"2026-10-20T17:54:00.000Z","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":"2026-10-20T17:54:00.000Z","obsTimeLocal":"2026-10-20T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201754Z 03018KT 10SM SCT250 17/06 A3025 RMK AO2 SLP243 T01670056 10167 20089 58004","temp":16.7,"dewpoint":5.6,"humidity":48,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-20T05:54:00.000Z","obsTimeLocal":"2026-10-20T01:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 200554Z 35003KT 10SM FEW250 07/06 A3023 RMK AO2 SLP237 T00670056 10100 20067 56014","temp":6.7,"dewpoint":5.6,"humidity":93,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-20T17:54:00.000Z","obsTimeLocal":"2026-10-20T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201754Z 03018KT 10SM SCT250 17/06 A3025 RMK AO2 SLP243 T01670056 10167 20089 58004","temp":16.7,"dewpoint":5.6,"humidity":48,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-21T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"a736caa6a8bc68d9","lastChangedAt":"2026-10-21T03:57:38.238Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KBOS/2026-10-20?format=record","status":"anchored","sha256":"cb9e87d11919c2347d6c7276b26d45865bb8c374cf686090191eb7e18ca39e8f","revision":"a736caa6a8bc68d9","flareTxHash":"0xd1820a9490fa0f7d5a2f7c7036f9dd753ea96f4b0d435325aecd2195f0c7bc47","flareBlock":73860312,"anchoredAt":"2026-11-06T05:01:27.405Z","explorer":"https://flare-explorer.flare.network/tx/0xd1820a9490fa0f7d5a2f7c7036f9dd753ea96f4b0d435325aecd2195f0c7bc47","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":"2026-10-20T17:54:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-20T05:54:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":16.7,"tmin":6.7,"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":16.67,"tmin":6.67,"precip":0,"corrected":false,"issuedAt":"2026-10-21T06:37:00.000Z","html":"https://weathermarket.io/nws-cli/KBOS/2026-10-20","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-10-20"},"observations":[{"obsTimeUtc":"2026-10-20T04:54:00.000Z","obsTimeLocal":"2026-10-20T00:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 200454Z 36004KT 10SM FEW250 07/06 A3024 RMK AO2 SLP239 T00720056 401330044","temp":7.2,"dewpoint":5.6,"humidity":90,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T05:54:00.000Z","obsTimeLocal":"2026-10-20T01:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 200554Z 35003KT 10SM FEW250 07/06 A3023 RMK AO2 SLP237 T00670056 10100 20067 56014","temp":6.7,"dewpoint":5.6,"humidity":93,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T06:54:00.000Z","obsTimeLocal":"2026-10-20T02:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 200654Z 33006KT 10SM FEW250 07/06 A3022 RMK AO2 SLP232 T00720056","temp":7.2,"dewpoint":5.6,"humidity":90,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T07:54:00.000Z","obsTimeLocal":"2026-10-20T03:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 200754Z 33006KT 10SM FEW250 07/05 A3021 RMK AO2 SLP229 T00670050","temp":6.7,"dewpoint":5,"humidity":89,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T08:54:00.000Z","obsTimeLocal":"2026-10-20T04:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 200854Z 33007KT 10SM FEW250 07/05 A3020 RMK AO2 SLP227 T00670050 56010","temp":6.7,"dewpoint":5,"humidity":89,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T09:54:00.000Z","obsTimeLocal":"2026-10-20T05:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 200954Z 33007KT 10SM FEW250 07/04 A3022 RMK AO2 SLP232 T00670044","temp":6.7,"dewpoint":4.4,"humidity":85,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T10:54:00.000Z","obsTimeLocal":"2026-10-20T06:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201054Z 35007KT 10SM FEW200 08/04 A3023 RMK AO2 SLP236 T00780044 $","temp":7.8,"dewpoint":4.4,"humidity":79,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T11:54:00.000Z","obsTimeLocal":"2026-10-20T07:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201154Z 35009KT 10SM FEW200 SCT250 09/04 A3025 RMK AO2 SLP242 T00890044 10089 20067 53015","temp":8.9,"dewpoint":4.4,"humidity":73,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T12:54:00.000Z","obsTimeLocal":"2026-10-20T08:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201254Z 34011KT 10SM FEW200 SCT250 09/04 A3026 RMK AO2 SLP247 T00940044","temp":9.4,"dewpoint":4.4,"humidity":71,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T13:54:00.000Z","obsTimeLocal":"2026-10-20T09:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201354Z 01009KT 10SM FEW200 SCT250 12/06 A3026 RMK AO2 SLP246 T01220056","temp":12.2,"dewpoint":5.6,"humidity":64,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T14:54:00.000Z","obsTimeLocal":"2026-10-20T10:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201454Z 03017G23KT 10SM FEW200 BKN250 16/06 A3026 RMK AO2 PK WND 02026/1414 SLP247 T01560056 51005","temp":15.6,"dewpoint":5.6,"humidity":51,"wind":8.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T15:54:00.000Z","obsTimeLocal":"2026-10-20T11:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201554Z 03014G24KT 10SM BKN250 16/06 A3027 RMK AO2 PK WND 03027/1515 SLP248 T01610061","temp":16.1,"dewpoint":6.1,"humidity":52,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T16:54:00.000Z","obsTimeLocal":"2026-10-20T12:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201654Z 04015KT 10SM CLR 16/06 A3026 RMK AO2 PK WND 02027/1607 SLP245 T01560061","temp":15.6,"dewpoint":6.1,"humidity":53,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T17:54:00.000Z","obsTimeLocal":"2026-10-20T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201754Z 03018KT 10SM SCT250 17/06 A3025 RMK AO2 SLP243 T01670056 10167 20089 58004","temp":16.7,"dewpoint":5.6,"humidity":48,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T18:54:00.000Z","obsTimeLocal":"2026-10-20T14:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201854Z 04014KT 10SM SCT250 16/06 A3024 RMK AO2 SLP239 T01610056","temp":16.1,"dewpoint":5.6,"humidity":50,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T19:54:00.000Z","obsTimeLocal":"2026-10-20T15:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 201954Z 05010KT 10SM FEW250 16/07 A3023 RMK AO2 SLP236 T01610067","temp":16.1,"dewpoint":6.7,"humidity":54,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T20:54:00.000Z","obsTimeLocal":"2026-10-20T16:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 202054Z 05010KT 10SM FEW250 15/06 A3023 RMK AO2 SLP236 T01500061 56007","temp":15,"dewpoint":6.1,"humidity":55,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T21:54:00.000Z","obsTimeLocal":"2026-10-20T17:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 202154Z 05008KT 10SM FEW250 14/07 A3023 RMK AO2 SLP237 T01390072","temp":13.9,"dewpoint":7.2,"humidity":64,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T22:54:00.000Z","obsTimeLocal":"2026-10-20T18:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 202254Z 03008KT 10SM FEW250 13/05 A3024 RMK AO2 SLP240 T01330050","temp":13.3,"dewpoint":5,"humidity":57,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-20T23:54:00.000Z","obsTimeLocal":"2026-10-20T19:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 202354Z 01008KT 10SM CLR 11/05 A3025 RMK AO2 SLP242 T01110050 10167 20111 53007","temp":11.1,"dewpoint":5,"humidity":66,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-21T00:54:00.000Z","obsTimeLocal":"2026-10-20T20:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 210054Z 01009KT 10SM CLR 11/06 A3026 RMK AO2 SLP246 T01110061","temp":11.1,"dewpoint":6.1,"humidity":71,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-21T01:54:00.000Z","obsTimeLocal":"2026-10-20T21:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 210154Z 01008KT 10SM CLR 11/07 A3027 RMK AO2 SLP251 T01060067","temp":10.6,"dewpoint":6.7,"humidity":77,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-21T02:54:00.000Z","obsTimeLocal":"2026-10-20T22:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 210254Z 01009KT 10SM CLR 10/07 A3029 RMK AO2 SLP257 T01000072 53014","temp":10,"dewpoint":7.2,"humidity":83,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-21T03:54:00.000Z","obsTimeLocal":"2026-10-20T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 210354Z 35006KT 10SM CLR 10/07 A3030 RMK AO2 SLP259 T01000072","temp":10,"dewpoint":7.2,"humidity":83,"wind":3.1,"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/KBOS/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/KBOS/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for KBOS for the contract date (station-local calendar day), as published at https://weathermarket.io/station/KBOS/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/KBOS/2026-10-20","json":"https://weathermarket.io/api/station/KBOS/2026-10-20","record":"https://weathermarket.io/api/station/KBOS/2026-10-20?format=record","prev":"https://weathermarket.io/station/KBOS/2026-10-19","next":"https://weathermarket.io/station/KBOS/2026-10-21","station":"https://weathermarket.io/station/KBOS","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=BOS&data=metar&year1=2026&month1=10&day1=20&year2=2026&month2=10&day2=22&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=KBOS&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=10&day=20&hora=4&anof=2026&mesf=10&dayf=21&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KBOS"}}}