{"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":"2026-09-25","window":{"date":"2026-09-25","timezone":"America/New_York","dayStartUtc":"2026-09-25T04:00:00.000Z","dayEndUtc":"2026-09-26T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":17.8,"tmaxAt":"2026-09-25T17:54:00.000Z","tmin":10.6,"tminAt":"2026-09-25T06:54:00.000Z","tavg":14.8,"humidityMean":66.8,"windMean":7.7,"windMax":10.8,"windMaxAt":"2026-09-25T16:54:00.000Z","precipObservedCount":3,"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":"2026-09-25T17:54:00.000Z","obsTimeLocal":"2026-09-25T13:54:00-04:00","metarType":null,"raw":"METAR KBOS 251754Z 02021G29KT 10SM FEW090 SCT150 BKN220 18/09 A3014 RMK AO2 PK WND 01033/1738 SLP204 T01780089 10178 20122 58019","temp":17.8,"dewpoint":8.9,"humidity":56,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-09-25T06:54:00.000Z","obsTimeLocal":"2026-09-25T02:54:00-04:00","metarType":null,"raw":"METAR KBOS 250654Z 35008KT 10SM FEW250 11/08 A3025 RMK AO2 SLP241 T01060078","temp":10.6,"dewpoint":7.8,"humidity":83,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-09-25T16:54:00.000Z","obsTimeLocal":"2026-09-25T12:54:00-04:00","metarType":null,"raw":"METAR KBOS 251654Z 03021KT 10SM FEW150 SCT200 BKN240 17/09 A3016 RMK AO2 PK WND 03029/1555 SLP213 T01720094","temp":17.2,"dewpoint":9.4,"humidity":60,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-09-26T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"566f091bcb3b3739","lastChangedAt":"2026-09-26T04:00:14.715Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KBOS/2026-09-25?format=record","status":"pending_anchor","sha256":null,"revision":null,"flareTxHash":null,"flareBlock":null,"anchoredAt":null,"explorer":null,"matchesCurrent":null,"note":"Final - the next hourly run writes this record's hash to SnapshotAnchor on Flare"},"qc":{"summary":{"good":24,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-09-25T17:54:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-09-25T06:54:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":17.8,"tmin":10.6,"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":17.78,"tmin":10,"precip":0.25,"corrected":false,"issuedAt":"2026-09-26T05:40:00.000Z","html":"https://weathermarket.io/nws-cli/KBOS/2026-09-25","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-25"},"observations":[{"obsTimeUtc":"2026-09-25T04:54:00.000Z","obsTimeLocal":"2026-09-25T00:54:00-04:00","metarType":null,"raw":"METAR KBOS 250454Z 35007KT 10SM FEW200 SCT250 11/08 A3029 RMK AO2 SLP258 T01110078 401830094","temp":11.1,"dewpoint":7.8,"humidity":80,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T05:54:00.000Z","obsTimeLocal":"2026-09-25T01:54:00-04:00","metarType":null,"raw":"METAR KBOS 250554Z 34008KT 10SM CLR 11/08 A3027 RMK AO2 SLP250 T01110078 10133 20106 58014","temp":11.1,"dewpoint":7.8,"humidity":80,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T06:54:00.000Z","obsTimeLocal":"2026-09-25T02:54:00-04:00","metarType":null,"raw":"METAR KBOS 250654Z 35008KT 10SM FEW250 11/08 A3025 RMK AO2 SLP241 T01060078","temp":10.6,"dewpoint":7.8,"humidity":83,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T07:54:00.000Z","obsTimeLocal":"2026-09-25T03:54:00-04:00","metarType":null,"raw":"METAR KBOS 250754Z 35009KT 10SM SCT250 11/07 A3024 RMK AO2 SLP238 T01060072","temp":10.6,"dewpoint":7.2,"humidity":79,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T08:54:00.000Z","obsTimeLocal":"2026-09-25T04:54:00-04:00","metarType":null,"raw":"METAR KBOS 250854Z 36011KT 10SM SCT250 11/06 A3021 RMK AO2 SLP231 T01060061 56020","temp":10.6,"dewpoint":6.1,"humidity":74,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T09:54:00.000Z","obsTimeLocal":"2026-09-25T05:54:00-04:00","metarType":null,"raw":"METAR KBOS 250954Z 01011KT 10SM SCT250 11/06 A3020 RMK AO2 SLP226 T01060056","temp":10.6,"dewpoint":5.6,"humidity":71,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T10:54:00.000Z","obsTimeLocal":"2026-09-25T06:54:00-04:00","metarType":null,"raw":"METAR KBOS 251054Z 36009KT 10SM FEW140 BKN250 11/07 A3021 RMK AO2 SLP230 T01110067","temp":11.1,"dewpoint":6.7,"humidity":74,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T11:54:00.000Z","obsTimeLocal":"2026-09-25T07:54:00-04:00","metarType":null,"raw":"METAR KBOS 251154Z 36010KT 10SM SCT140 BKN230 12/08 A3021 RMK AO2 SLP229 T01170078 10117 20100 56002","temp":11.7,"dewpoint":7.8,"humidity":77,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T12:54:00.000Z","obsTimeLocal":"2026-09-25T08:54:00-04:00","metarType":null,"raw":"METAR KBOS 251254Z 36010KT 10SM FEW140 SCT180 BKN230 13/09 A3021 RMK AO2 SLP228 T01280094","temp":12.8,"dewpoint":9.4,"humidity":80,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T13:54:00.000Z","obsTimeLocal":"2026-09-25T09:54:00-04:00","metarType":null,"raw":"METAR KBOS 251354Z 02014KT 10SM FEW140 FEW180 BKN250 15/11 A3020 RMK AO2 SLP224 T01500106","temp":15,"dewpoint":10.6,"humidity":75,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T14:54:00.000Z","obsTimeLocal":"2026-09-25T10:54:00-04:00","metarType":null,"raw":"METAR KBOS 251454Z 02019G27KT 10SM FEW150 FEW200 OVC240 17/09 A3019 RMK AO2 PK WND 03028/1443 SLP223 T01670094 57005","temp":16.7,"dewpoint":9.4,"humidity":62,"wind":9.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T15:54:00.000Z","obsTimeLocal":"2026-09-25T11:54:00-04:00","metarType":null,"raw":"METAR KBOS 251554Z 03019G27KT 10SM FEW150 FEW200 OVC240 17/09 A3018 RMK AO2 PK WND 03029/1511 SLP219 T01720094","temp":17.2,"dewpoint":9.4,"humidity":60,"wind":9.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T16:54:00.000Z","obsTimeLocal":"2026-09-25T12:54:00-04:00","metarType":null,"raw":"METAR KBOS 251654Z 03021KT 10SM FEW150 SCT200 BKN240 17/09 A3016 RMK AO2 PK WND 03029/1555 SLP213 T01720094","temp":17.2,"dewpoint":9.4,"humidity":60,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T17:54:00.000Z","obsTimeLocal":"2026-09-25T13:54:00-04:00","metarType":null,"raw":"METAR KBOS 251754Z 02021G29KT 10SM FEW090 SCT150 BKN220 18/09 A3014 RMK AO2 PK WND 01033/1738 SLP204 T01780089 10178 20122 58019","temp":17.8,"dewpoint":8.9,"humidity":56,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T18:54:00.000Z","obsTimeLocal":"2026-09-25T14:54:00-04:00","metarType":null,"raw":"METAR KBOS 251854Z 02020G32KT 10SM FEW090 SCT150 BKN220 18/08 A3011 RMK AO2 PK WND 02032/1851 SLP197 T01780083","temp":17.8,"dewpoint":8.3,"humidity":54,"wind":10.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T19:54:00.000Z","obsTimeLocal":"2026-09-25T15:54:00-04:00","metarType":null,"raw":"METAR KBOS 251954Z 03021G32KT 10SM FEW090 SCT140 BKN220 18/09 A3010 RMK AO2 PK WND 01035/1904 SLP191 T01780089","temp":17.8,"dewpoint":8.9,"humidity":56,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T20:54:00.000Z","obsTimeLocal":"2026-09-25T16:54:00-04:00","metarType":null,"raw":"METAR KBOS 252054Z 03019G30KT 10SM FEW090 SCT130 OVC220 17/08 A3009 RMK AO2 PK WND 02033/1957 SLP190 T01720083 56014","temp":17.2,"dewpoint":8.3,"humidity":56,"wind":9.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T21:54:00.000Z","obsTimeLocal":"2026-09-25T17:54:00-04:00","metarType":null,"raw":"METAR KBOS 252154Z 03019G29KT 10SM FEW090 SCT130 OVC220 18/07 A3008 RMK AO2 PK WND 03030/2059 SLP186 T01780072","temp":17.8,"dewpoint":7.2,"humidity":50,"wind":9.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T22:54:00.000Z","obsTimeLocal":"2026-09-25T18:54:00-04:00","metarType":null,"raw":"METAR KBOS 252254Z 04021G33KT 10SM SCT110 OVC200 18/07 A3007 RMK AO2 PK WND 04033/2253 SLP181 T01780072","temp":17.8,"dewpoint":7.2,"humidity":50,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-25T23:54:00.000Z","obsTimeLocal":"2026-09-25T19:54:00-04:00","metarType":null,"raw":"METAR KBOS 252354Z 04014G22KT 10SM -RA BKN110 OVC200 17/09 A3008 RMK AO2 PK WND 03028/2306 RAB13 SLP186 P0000 60000 T01670094 10178 20167 55004","temp":16.7,"dewpoint":9.4,"humidity":62,"wind":7.2,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T00:54:00.000Z","obsTimeLocal":"2026-09-25T20:54:00-04:00","metarType":null,"raw":"METAR KBOS 260054Z 02012KT 10SM -RA FEW065 OVC120 16/10 A3008 RMK AO2 SLP187 P0001 T01610100","temp":16.1,"dewpoint":10,"humidity":67,"wind":6.2,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T01:54:00.000Z","obsTimeLocal":"2026-09-25T21:54:00-04:00","metarType":null,"raw":"METAR KBOS 260154Z 03016G23KT 10SM FEW065 OVC100 17/10 A3006 RMK AO2 RAE29 SLP179 P0000 T01670100","temp":16.7,"dewpoint":10,"humidity":65,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T02:54:00.000Z","obsTimeLocal":"2026-09-25T22:54:00-04:00","metarType":null,"raw":"METAR KBOS 260254Z 04021G31KT 10SM BKN110 18/09 A3004 RMK AO2 PK WND 04033/0241 SLP172 60001 T01780094 58014","temp":17.8,"dewpoint":9.4,"humidity":58,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T03:54:00.000Z","obsTimeLocal":"2026-09-25T23:54:00-04:00","metarType":null,"raw":"METAR KBOS 260354Z 05018KT 10SM -RA BKN095 OVC110 16/12 A3003 RMK AO2 PK WND 06031/0300 RAB06 SLP167 P0000 T01610117","temp":16.1,"dewpoint":11.7,"humidity":75,"wind":9.3,"precipObserved":true,"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/2026-09-25","json":"https://weathermarket.io/api/station/KBOS/2026-09-25","record":"https://weathermarket.io/api/station/KBOS/2026-09-25?format=record","prev":"https://weathermarket.io/station/KBOS/2026-09-24","next":"https://weathermarket.io/station/KBOS/2026-09-26","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=9&day1=25&year2=2026&month2=9&day2=27&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=9&day=25&hora=4&anof=2026&mesf=9&dayf=26&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KBOS"}}}