{"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":"2026-10-04","window":{"date":"2026-10-04","timezone":"America/New_York","dayStartUtc":"2026-10-04T04:00:00.000Z","dayEndUtc":"2026-10-05T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":17.2,"tmaxAt":"2026-10-04T16:54:00.000Z","tmin":10,"tminAt":"2026-10-04T07:54:00.000Z","tavg":14.3,"humidityMean":81.9,"windMean":4,"windMax":6.7,"windMaxAt":"2026-10-04T15:54:00.000Z","precipObservedCount":1,"nObservations":26,"maxGapMinutes":120,"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":"2026-10-04T16:54:00.000Z","obsTimeLocal":"2026-10-04T12:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041654Z 08011KT 10SM SCT029 BKN250 17/10 A3028 RMK AO2 SLP254 T01720100","temp":17.2,"dewpoint":10,"humidity":63,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-04T07:54:00.000Z","obsTimeLocal":"2026-10-04T03:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 040754Z 02006KT 10SM CLR 10/09 A3035 RMK AO2 SLP276 T01000094","temp":10,"dewpoint":9.4,"humidity":96,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-04T15:54:00.000Z","obsTimeLocal":"2026-10-04T11:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041554Z 08013KT 10SM SCT028 BKN250 17/09 A3030 RMK AO2 SLP258 T01670094","temp":16.7,"dewpoint":9.4,"humidity":62,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-05T07:00:00.000Z","settleable":false,"coverage":{"ok":false,"maxGapMinutes":120,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":["coverage_gap: longest stretch without a report was 120 min, above 90 min (station normal interval 60 + 30)"],"holdHours":3},"revision":"594c58b1ea0f1052","lastChangedAt":"2026-10-05T03:57:39.489Z","corrections":[{"obsTimeUtc":"2026-10-04T17:54:00.000Z","correctedAt":"2026-10-04T18:09:41.216Z","original":"METAR KBOS 041754Z 08011KT 10SM CLR 17/11 A3024 RMK AO2 SLP241 T01670106 10172 20117 58028","corrected":"METAR KBOS 041754Z COR 08011KT 10SM FEW027 BKN250 17/11 A3024 RMK AO2 SLP241 T01670106 10172 20117 58028"}],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KBOS/2026-10-04?format=record","status":"anchored","sha256":"5af1c3c6ef4107a1023cb5c16464353b50338909ef71fd4751aaebd378c1ec8d","revision":"594c58b1ea0f1052","flareTxHash":"0xd1d8135f065aace3f12626d8425249b64fbac4fa5bfbdc697ea2eaf26288475a","flareBlock":71360308,"anchoredAt":"2026-10-05T07:01:18.828Z","explorer":"https://flare-explorer.flare.network/tx/0xd1d8135f065aace3f12626d8425249b64fbac4fa5bfbdc697ea2eaf26288475a","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":26,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-04T16:54:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-04T07:54:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":17.2,"tmin":10,"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":17.22,"tmin":10,"precip":0,"corrected":false,"issuedAt":"2026-10-05T05:34:00.000Z","html":"https://weathermarket.io/nws-cli/KBOS/2026-10-04","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-10-04"},"observations":[{"obsTimeUtc":"2026-10-04T04:54:00.000Z","obsTimeLocal":"2026-10-04T00:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 040454Z 35003KT 10SM FEW250 13/09 A3036 RMK AO2 SLP279 T01280094 401940122","temp":12.8,"dewpoint":9.4,"humidity":80,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T05:54:00.000Z","obsTimeLocal":"2026-10-04T01:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 040554Z 01006KT 10SM FEW250 12/09 A3036 RMK AO2 SLP280 T01170094 10144 20111 53002","temp":11.7,"dewpoint":9.4,"humidity":86,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T06:54:00.000Z","obsTimeLocal":"2026-10-04T02:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 040654Z 36005KT 10SM CLR 11/09 A3035 RMK AO2 SLP277 T01110094","temp":11.1,"dewpoint":9.4,"humidity":89,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T07:54:00.000Z","obsTimeLocal":"2026-10-04T03:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 040754Z 02006KT 10SM CLR 10/09 A3035 RMK AO2 SLP276 T01000094","temp":10,"dewpoint":9.4,"humidity":96,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T08:54:00.000Z","obsTimeLocal":"2026-10-04T04:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 040854Z 36005KT 10SM FEW250 11/10 A3035 RMK AO2 SLP278 T01110100 55003","temp":11.1,"dewpoint":10,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T09:54:00.000Z","obsTimeLocal":"2026-10-04T05:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 040954Z 36007KT 10SM FEW020 FEW250 11/10 A3036 RMK AO2 SLP279 T01110100","temp":11.1,"dewpoint":10,"humidity":93,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T10:54:00.000Z","obsTimeLocal":"2026-10-04T06:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041054Z 36008KT 10SM SCT026 SCT250 11/10 A3036 RMK AO2 SLP279 T01110100","temp":11.1,"dewpoint":10,"humidity":93,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T12:54:00.000Z","obsTimeLocal":"2026-10-04T08:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041254Z 03007KT 10SM SCT025 SCT250 14/11 A3034 RMK AO2 SLP274 T01440111","temp":14.4,"dewpoint":11.1,"humidity":81,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T13:54:00.000Z","obsTimeLocal":"2026-10-04T09:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041354Z 08012KT 10SM SCT026 SCT250 16/09 A3034 RMK AO2 SLP274 T01560094","temp":15.6,"dewpoint":9.4,"humidity":67,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T14:54:00.000Z","obsTimeLocal":"2026-10-04T10:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041454Z 08010KT 10SM SCT027 BKN250 17/10 A3033 RMK AO2 SLP269 T01670100 56011","temp":16.7,"dewpoint":10,"humidity":65,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T15:54:00.000Z","obsTimeLocal":"2026-10-04T11:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041554Z 08013KT 10SM SCT028 BKN250 17/09 A3030 RMK AO2 SLP258 T01670094","temp":16.7,"dewpoint":9.4,"humidity":62,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T16:54:00.000Z","obsTimeLocal":"2026-10-04T12:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041654Z 08011KT 10SM SCT029 BKN250 17/10 A3028 RMK AO2 SLP254 T01720100","temp":17.2,"dewpoint":10,"humidity":63,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T17:54:00.000Z","obsTimeLocal":"2026-10-04T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041754Z COR 08011KT 10SM FEW027 BKN250 17/11 A3024 RMK AO2 SLP241 T01670106 10172 20117 58028","temp":16.7,"dewpoint":10.6,"humidity":67,"wind":5.7,"precipObserved":false,"correctedAt":"2026-10-04T18:09:41.216Z","originalRaw":"METAR KBOS 041754Z 08011KT 10SM CLR 17/11 A3024 RMK AO2 SLP241 T01670106 10172 20117 58028"},{"obsTimeUtc":"2026-10-04T18:54:00.000Z","obsTimeLocal":"2026-10-04T14:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041854Z 07009KT 10SM FEW027 BKN100 BKN250 16/11 A3023 RMK AO2 SLP237 T01610111","temp":16.1,"dewpoint":11.1,"humidity":72,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T19:54:00.000Z","obsTimeLocal":"2026-10-04T15:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 041954Z 06009KT 10SM FEW027 BKN110 16/11 A3021 RMK AO2 SLP230 T01560111","temp":15.6,"dewpoint":11.1,"humidity":75,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T20:54:00.000Z","obsTimeLocal":"2026-10-04T16:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 042054Z 07010KT 10SM -RA FEW027 OVC110 15/11 A3019 RMK AO2 RAB47 SLP224 P0000 60000 T01500111 58017","temp":15,"dewpoint":11.1,"humidity":78,"wind":5.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T21:54:00.000Z","obsTimeLocal":"2026-10-04T17:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 042154Z 07008KT 10SM SCT043 BKN065 OVC100 15/12 A3018 RMK AO2 RAE2059B21E29 SLP220 P0000 T01500117","temp":15,"dewpoint":11.7,"humidity":81,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T22:54:00.000Z","obsTimeLocal":"2026-10-04T18:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 042254Z 06008KT 10SM BKN030 OVC100 15/12 A3016 RMK AO2 SLP213 T01500122","temp":15,"dewpoint":12.2,"humidity":83,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T23:47:00.000Z","obsTimeLocal":"2026-10-04T19:47:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 042347Z 04008KT 10SM OVC022 15/13 A3014 RMK AO2 T01500128","temp":15,"dewpoint":12.8,"humidity":87,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T23:54:00.000Z","obsTimeLocal":"2026-10-04T19:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 042354Z 05007KT 10SM OVC022 15/13 A3014 RMK AO2 SLP206 60000 T01500128 10172 20150 58018","temp":15,"dewpoint":12.8,"humidity":87,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T00:54:00.000Z","obsTimeLocal":"2026-10-04T20:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 050054Z 02006KT 10SM OVC015 15/13 A3012 RMK AO2 SLP199 T01500133","temp":15,"dewpoint":13.3,"humidity":90,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T01:08:00.000Z","obsTimeLocal":"2026-10-04T21:08:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 050108Z 03008KT 10SM OVC014 15/13 A3011 RMK AO2 T01500133","temp":15,"dewpoint":13.3,"humidity":90,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T01:54:00.000Z","obsTimeLocal":"2026-10-04T21:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 050154Z 01006KT 10SM SCT015 OVC036 15/13 A3009 RMK AO2 SLP188 T01500128","temp":15,"dewpoint":12.8,"humidity":87,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T02:54:00.000Z","obsTimeLocal":"2026-10-04T22:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 050254Z 02007KT 10SM SCT016 OVC030 15/13 A3007 RMK AO2 SLP181 T01500133 57024","temp":15,"dewpoint":13.3,"humidity":90,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T03:29:00.000Z","obsTimeLocal":"2026-10-04T23:29:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 050329Z 01007KT 10SM BKN012 OVC030 15/13 A3005 RMK AO2 T01500128","temp":15,"dewpoint":12.8,"humidity":87,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T03:54:00.000Z","obsTimeLocal":"2026-10-04T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 050354Z 35007KT 10SM OVC013 15/13 A3005 RMK AO2 SLP174 T01500128","temp":15,"dewpoint":12.8,"humidity":87,"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/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/2026-10-04","json":"https://weathermarket.io/api/station/KBOS/2026-10-04","record":"https://weathermarket.io/api/station/KBOS/2026-10-04?format=record","prev":"https://weathermarket.io/station/KBOS/2026-10-03","next":"https://weathermarket.io/station/KBOS/2026-10-05","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=4&year2=2026&month2=10&day2=6&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=4&hora=4&anof=2026&mesf=10&dayf=5&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KBOS"}}}