{"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":"2026-10-09","window":{"date":"2026-10-09","timezone":"America/New_York","dayStartUtc":"2026-10-09T04:00:00.000Z","dayEndUtc":"2026-10-10T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":19.4,"tmaxAt":"2026-10-09T17:54:00.000Z","tmin":12.8,"tminAt":"2026-10-09T09:54:00.000Z","tavg":16.5,"humidityMean":46,"windMean":6.4,"windMax":9.8,"windMaxAt":"2026-10-09T18:54:00.000Z","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":"2026-10-09T17:54:00.000Z","obsTimeLocal":"2026-10-09T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091754Z 27018G26KT 10SM SCT060 19/04 A3004 RMK AO2 PK WND 26029/1712 SLP172 T01940039 10200 20133 56009","temp":19.4,"dewpoint":3.9,"humidity":36,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-09T09:54:00.000Z","obsTimeLocal":"2026-10-09T05:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 090954Z 24010KT 10SM FEW250 13/06 A3001 RMK AO2 SLP163 T01280061","temp":12.8,"dewpoint":6.1,"humidity":64,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-09T18:54:00.000Z","obsTimeLocal":"2026-10-09T14:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091854Z 26019G34KT 10SM SCT070 19/02 A3004 RMK AO2 PK WND 29034/1848 SLP172 T01940022","temp":19.4,"dewpoint":2.2,"humidity":32,"wind":9.8,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-10T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"24d8d71b697371d9","lastChangedAt":"2026-10-10T03:57:38.097Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KBOS/2026-10-09?format=record","status":"anchored","sha256":"59242491b8d55fa0750c0779a646d2d8dea649cf93ea114177a8e76d34b42a37","revision":"24d8d71b697371d9","flareTxHash":"0x3c0ea52860921eb4a11ca275212c0f85120bd4ff7c79dd08782f60a898e1ea03","flareBlock":71757744,"anchoredAt":"2026-10-10T07:02:00.676Z","explorer":"https://flare-explorer.flare.network/tx/0x3c0ea52860921eb4a11ca275212c0f85120bd4ff7c79dd08782f60a898e1ea03","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":"2026-10-09T17:54:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-09T09:54:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":19.4,"tmin":12.8,"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":20.56,"tmin":12.78,"precip":0,"corrected":false,"issuedAt":"2026-10-10T05:53:00.000Z","html":"https://weathermarket.io/nws-cli/KBOS/2026-10-09","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-10-09"},"observations":[{"obsTimeUtc":"2026-10-09T04:54:00.000Z","obsTimeLocal":"2026-10-09T00:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 090454Z 27009KT 10SM CLR 16/04 A2998 RMK AO2 SLP151 T01610044 402280133","temp":16.1,"dewpoint":4.4,"humidity":46,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T05:54:00.000Z","obsTimeLocal":"2026-10-09T01:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 090554Z 26010KT 10SM CLR 16/05 A2998 RMK AO2 SLP153 T01560050 10189 20156 51006","temp":15.6,"dewpoint":5,"humidity":49,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T06:54:00.000Z","obsTimeLocal":"2026-10-09T02:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 090654Z 26009KT 10SM FEW250 15/06 A2999 RMK AO2 SLP153 T01500056","temp":15,"dewpoint":5.6,"humidity":53,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T07:54:00.000Z","obsTimeLocal":"2026-10-09T03:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 090754Z 27009G18KT 10SM FEW250 14/06 A2998 RMK AO2 SLP152 T01440056","temp":14.4,"dewpoint":5.6,"humidity":55,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T08:54:00.000Z","obsTimeLocal":"2026-10-09T04:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 090854Z 27011KT 10SM FEW250 14/06 A3000 RMK AO2 SLP158 T01390056 53005","temp":13.9,"dewpoint":5.6,"humidity":57,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T09:54:00.000Z","obsTimeLocal":"2026-10-09T05:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 090954Z 24010KT 10SM FEW250 13/06 A3001 RMK AO2 SLP163 T01280061","temp":12.8,"dewpoint":6.1,"humidity":64,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T10:54:00.000Z","obsTimeLocal":"2026-10-09T06:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091054Z 26011KT 10SM FEW140 FEW250 13/06 A3003 RMK AO2 SLP169 T01280061","temp":12.8,"dewpoint":6.1,"humidity":64,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T11:54:00.000Z","obsTimeLocal":"2026-10-09T07:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091154Z 26013KT 10SM FEW140 FEW250 13/06 A3005 RMK AO2 SLP174 T01330061 10161 20128 51016","temp":13.3,"dewpoint":6.1,"humidity":62,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T12:54:00.000Z","obsTimeLocal":"2026-10-09T08:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091254Z 26013KT 10SM FEW140 FEW250 15/07 A3006 RMK AO2 SLP178 T01500067","temp":15,"dewpoint":6.7,"humidity":58,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T13:54:00.000Z","obsTimeLocal":"2026-10-09T09:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091354Z 28017G26KT 10SM FEW090 FEW250 17/06 A3007 RMK AO2 PK WND 28026/1354 SLP182 T01670061","temp":16.7,"dewpoint":6.1,"humidity":50,"wind":8.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T14:54:00.000Z","obsTimeLocal":"2026-10-09T10:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091454Z 26015G25KT 10SM FEW050 FEW090 FEW250 18/07 A3007 RMK AO2 SLP181 T01830067 50007","temp":18.3,"dewpoint":6.7,"humidity":47,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T15:54:00.000Z","obsTimeLocal":"2026-10-09T11:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091554Z 27012G24KT 10SM SCT060 SCT110 18/05 A3005 RMK AO2 PK WND 25029/1501 SLP176 T01830050","temp":18.3,"dewpoint":5,"humidity":42,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T16:54:00.000Z","obsTimeLocal":"2026-10-09T12:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091654Z 26015G25KT 10SM SCT060 19/04 A3005 RMK AO2 PK WND 29031/1613 SLP175 T01890044","temp":18.9,"dewpoint":4.4,"humidity":38,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T17:54:00.000Z","obsTimeLocal":"2026-10-09T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091754Z 27018G26KT 10SM SCT060 19/04 A3004 RMK AO2 PK WND 26029/1712 SLP172 T01940039 10200 20133 56009","temp":19.4,"dewpoint":3.9,"humidity":36,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T18:54:00.000Z","obsTimeLocal":"2026-10-09T14:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091854Z 26019G34KT 10SM SCT070 19/02 A3004 RMK AO2 PK WND 29034/1848 SLP172 T01940022","temp":19.4,"dewpoint":2.2,"humidity":32,"wind":9.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T19:54:00.000Z","obsTimeLocal":"2026-10-09T15:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 091954Z 28015G25KT 10SM FEW070 19/03 A3006 RMK AO2 PK WND 28031/1927 SLP177 T01940028","temp":19.4,"dewpoint":2.8,"humidity":33,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T20:54:00.000Z","obsTimeLocal":"2026-10-09T16:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 092054Z 29013G25KT 10SM FEW075 19/03 A3008 RMK AO2 PK WND 28030/2010 SLP184 T01940028 53013","temp":19.4,"dewpoint":2.8,"humidity":33,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T21:54:00.000Z","obsTimeLocal":"2026-10-09T17:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 092154Z 27014G23KT 10SM FEW075 FEW250 18/03 A3009 RMK AO2 SLP190 T01830028","temp":18.3,"dewpoint":2.8,"humidity":36,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T22:54:00.000Z","obsTimeLocal":"2026-10-09T18:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 092254Z 28007KT 240V300 10SM FEW075 FEW250 18/03 A3012 RMK AO2 SLP198 T01780028","temp":17.8,"dewpoint":2.8,"humidity":37,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T23:54:00.000Z","obsTimeLocal":"2026-10-09T19:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 092354Z 26013G20KT 10SM FEW250 17/03 A3016 RMK AO2 SLP212 T01670028 10206 20167 53028","temp":16.7,"dewpoint":2.8,"humidity":39,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T00:54:00.000Z","obsTimeLocal":"2026-10-09T20:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 100054Z 24010KT 10SM FEW250 16/04 A3017 RMK AO2 SLP216 T01560039","temp":15.6,"dewpoint":3.9,"humidity":46,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T01:54:00.000Z","obsTimeLocal":"2026-10-09T21:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 100154Z 26014G26KT 10SM FEW250 16/03 A3019 RMK AO2 PK WND 28026/0149 SLP222 T01610028","temp":16.1,"dewpoint":2.8,"humidity":41,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T02:54:00.000Z","obsTimeLocal":"2026-10-09T22:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 100254Z 26010G18KT 220V290 10SM FEW250 16/03 A3020 RMK AO2 PK WND 25026/0237 SLP226 T01610028 53014","temp":16.1,"dewpoint":2.8,"humidity":41,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T03:54:00.000Z","obsTimeLocal":"2026-10-09T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 100354Z 28011KT 10SM SCT070 SCT250 16/03 A3021 RMK AO2 SLP230 T01560033","temp":15.6,"dewpoint":3.3,"humidity":44,"wind":5.7,"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/2026-10-09","json":"https://weathermarket.io/api/station/KBOS/2026-10-09","record":"https://weathermarket.io/api/station/KBOS/2026-10-09?format=record","prev":"https://weathermarket.io/station/KBOS/2026-10-08","next":"https://weathermarket.io/station/KBOS/2026-10-10","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=9&year2=2026&month2=10&day2=11&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=9&hora=4&anof=2026&mesf=10&dayf=10&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KBOS"}}}