{"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":"2026-09-27","window":{"date":"2026-09-27","timezone":"America/New_York","dayStartUtc":"2026-09-27T04:00:00.000Z","dayEndUtc":"2026-09-28T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":15.6,"tmaxAt":"2026-09-27T16:54:00.000Z","tmin":13.9,"tminAt":"2026-09-28T01:54:00.000Z","tavg":15,"humidityMean":96,"windMean":11.3,"windMax":13.9,"windMaxAt":"2026-09-27T07:54:00.000Z","precipObservedCount":31,"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":"2026-09-27T16:54:00.000Z","obsTimeLocal":"2026-09-27T12:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271654Z 04024G35KT 2 1/2SM -RA BR BKN006 OVC010 16/15 A2981 RMK AO2 PK WND 03037/1638 SLP095 P0014 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":12.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-09-28T01:54:00.000Z","obsTimeLocal":"2026-09-27T21:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 280154Z 03022G32KT 1 1/2SM -RA BR OVC004 14/13 A2990 RMK AO2 PK WND 03032/0154 SFC VIS 2 SLP125 P0001 T01390133","temp":13.9,"dewpoint":13.3,"humidity":96,"wind":11.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-09-27T07:54:00.000Z","obsTimeLocal":"2026-09-27T03:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270754Z 04027G44KT 1 1/4SM -RA BR OVC005 14/14 A2975 RMK AO2 PK WND 05044/0754 SLP074 P0001 T01440139 $","temp":14.4,"dewpoint":13.9,"humidity":97,"wind":13.9,"precipObserved":true,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-09-28T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"ed7f0613b0ac4f04","lastChangedAt":"2026-09-28T03:57:38.386Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KBOS/2026-09-27?format=record","status":"anchored","sha256":"69906da445a6181a610f0430302e667a31621f7ab7a414b3cad597ef5ec46954","revision":"ed7f0613b0ac4f04","flareTxHash":"0x28c57a77eb57d63dbb5c3e1dde7139455365b5bd5bb3f24f993d689524e70ea3","flareBlock":71112096,"anchoredAt":"2026-10-02T03:01:24.393Z","explorer":"https://flare-explorer.flare.network/tx/0x28c57a77eb57d63dbb5c3e1dde7139455365b5bd5bb3f24f993d689524e70ea3","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":"2026-09-27T16:54:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-09-28T01:54:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":15.6,"tmin":13.9,"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":15.56,"tmin":13.33,"precip":38.1,"corrected":false,"issuedAt":"2026-09-28T05:26:00.000Z","html":"https://weathermarket.io/nws-cli/KBOS/2026-09-27","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-27"},"observations":[{"obsTimeUtc":"2026-09-27T04:54:00.000Z","obsTimeLocal":"2026-09-27T00:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270454Z 03021G39KT 1 1/2SM -RA BR OVC008 14/13 A2979 RMK AO2 PK WND 02040/0408 SLP085 P0004 T01440133 401610128 $","temp":14.4,"dewpoint":13.3,"humidity":93,"wind":10.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T05:54:00.000Z","obsTimeLocal":"2026-09-27T01:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270554Z 03024G36KT 1 1/2SM -RA BR OVC007 14/14 A2978 RMK AO2 PK WND 02039/0523 SLP083 P0002 60025 T01440139 10144 20139 56014 $","temp":14.4,"dewpoint":13.9,"humidity":97,"wind":12.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T06:54:00.000Z","obsTimeLocal":"2026-09-27T02:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270654Z 04025G42KT 1 1/4SM -RA BR OVC006 14/14 A2976 RMK AO2 PK WND 04042/0646 SLP078 P0002 T01440139 $","temp":14.4,"dewpoint":13.9,"humidity":97,"wind":12.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T07:54:00.000Z","obsTimeLocal":"2026-09-27T03:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270754Z 04027G44KT 1 1/4SM -RA BR OVC005 14/14 A2975 RMK AO2 PK WND 05044/0754 SLP074 P0001 T01440139 $","temp":14.4,"dewpoint":13.9,"humidity":97,"wind":13.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T08:54:00.000Z","obsTimeLocal":"2026-09-27T04:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270854Z 04026G37KT 1 1/4SM RA BR OVC005 14/14 A2975 RMK AO2 PK WND 05043/0818 SLP072 P0006 60009 T01440139 56011 $","temp":14.4,"dewpoint":13.9,"humidity":97,"wind":13.4,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T09:54:00.000Z","obsTimeLocal":"2026-09-27T05:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270954Z 04024G38KT 1 1/2SM RA BR OVC006 14/14 A2975 RMK AO2 PK WND 03039/0921 SLP075 P0009 T01440139 $","temp":14.4,"dewpoint":13.9,"humidity":97,"wind":12.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T10:54:00.000Z","obsTimeLocal":"2026-09-27T06:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271054Z 04026G43KT 1 1/2SM +RA BR OVC006 15/14 A2976 RMK AO2 PK WND 02043/1049 SLP075 P0012 T01500139 $","temp":15,"dewpoint":13.9,"humidity":93,"wind":13.4,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T11:54:00.000Z","obsTimeLocal":"2026-09-27T07:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271154Z 03025G35KT 1 1/2SM R04R/5500VP6000FT +RA BR BKN007 OVC011 14/14 A2977 RMK AO2 PK WND 03041/1108 SLP081 P0027 60057 70150 T01440139 10150 20144 53009 $","temp":14.4,"dewpoint":13.9,"humidity":97,"wind":12.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T12:54:00.000Z","obsTimeLocal":"2026-09-27T08:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271254Z 04019G28KT 1 1/4SM R04R/4500VP6000FT RA BR OVC006 15/14 A2978 RMK AO2 PK WND 03037/1158 SLP084 P0015 T01500144 $","temp":15,"dewpoint":14.4,"humidity":96,"wind":9.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T13:54:00.000Z","obsTimeLocal":"2026-09-27T09:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271354Z 03024G35KT 1 1/2SM R04R/4000VP6000FT RA BR OVC005 15/14 A2978 RMK AO2 PK WND 03036/1320 SLP084 P0011 T01500144","temp":15,"dewpoint":14.4,"humidity":96,"wind":12.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T14:54:00.000Z","obsTimeLocal":"2026-09-27T10:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271454Z 03023G32KT 2 1/2SM -RA BR OVC007 15/14 A2980 RMK AO2 PK WND 03033/1439 SLP091 P0018 60044 T01500144 53010","temp":15,"dewpoint":14.4,"humidity":96,"wind":11.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T15:46:00.000Z","obsTimeLocal":"2026-09-27T11:46:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 271546Z 03022G33KT 1 1/4SM R04R/3500VP6000FT RA BR OVC007 15/14 A2981 RMK AO2 PK WND 04036/1456 P0005 T01500144","temp":15,"dewpoint":14.4,"humidity":96,"wind":11.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T15:54:00.000Z","obsTimeLocal":"2026-09-27T11:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271554Z 03025G35KT 1SM R04R/3500V5500FT RA BR OVC007 15/14 A2981 RMK AO2 PK WND 04036/1456 SLP095 P0008 T01500144","temp":15,"dewpoint":14.4,"humidity":96,"wind":12.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T16:54:00.000Z","obsTimeLocal":"2026-09-27T12:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271654Z 04024G35KT 2 1/2SM -RA BR BKN006 OVC010 16/15 A2981 RMK AO2 PK WND 03037/1638 SLP095 P0014 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":12.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T17:01:00.000Z","obsTimeLocal":"2026-09-27T13:01:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 271701Z 04023G37KT 3SM -RA BR OVC006 16/15 A2982 RMK AO2 PK WND 03037/1657 P0000 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":11.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T17:09:00.000Z","obsTimeLocal":"2026-09-27T13:09:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 271709Z 03024G34KT 2 1/2SM -RA BR OVC005 16/15 A2982 RMK AO2 PK WND 03037/1657 P0000 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":12.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T17:24:00.000Z","obsTimeLocal":"2026-09-27T13:24:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 271724Z 04021G34KT 1 1/4SM R04R/4000VP6000FT RA BR OVC005 16/15 A2982 RMK AO2 PK WND 03037/1657 P0000 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":10.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T17:44:00.000Z","obsTimeLocal":"2026-09-27T13:44:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 271744Z 04021G32KT 1SM R04R/4000V5000FT -RA BR OVC004 16/15 A2983 RMK AO2 PK WND 03037/1657 P0003 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":10.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T17:54:00.000Z","obsTimeLocal":"2026-09-27T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271754Z 04019G29KT 1SM R04R/4500V5000FT -RA BR OVC004 16/15 A2982 RMK AO2 PK WND 03037/1657 SLP099 P0003 60069 T01560150 10156 20144 51008","temp":15.6,"dewpoint":15,"humidity":96,"wind":9.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T18:54:00.000Z","obsTimeLocal":"2026-09-27T14:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271854Z 04022G31KT 1SM R04R/5000V5500FT -RA BR OVC004 16/15 A2983 RMK AO2 PK WND 05035/1816 SLP101 P0001 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":11.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T19:29:00.000Z","obsTimeLocal":"2026-09-27T15:29:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 271929Z 04020G30KT 3/4SM R04R/4500V5000FT -RA BR OVC004 16/15 A2984 RMK AO2 PK WND 03033/1859 P0000 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":10.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T19:54:00.000Z","obsTimeLocal":"2026-09-27T15:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 271954Z 04023G31KT 3/4SM R04R/4500V5000FT -RA BR OVC004 16/15 A2984 RMK AO2 PK WND 03033/1859 SLP105 P0000 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":11.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T20:54:00.000Z","obsTimeLocal":"2026-09-27T16:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 272054Z 04017G33KT 3/4SM R04R/5000V5500FT -RA BR OVC004 16/15 A2985 RMK AO2 PK WND 04033/2049 SLP107 P0001 60002 T01560150 53008","temp":15.6,"dewpoint":15,"humidity":96,"wind":8.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T21:54:00.000Z","obsTimeLocal":"2026-09-27T17:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 272154Z 04020G29KT 3/4SM R04R/6000VP6000FT -RA BR OVC004 16/15 A2986 RMK AO2 PK WND 04033/2056 SLP111 P0001 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":10.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T22:54:00.000Z","obsTimeLocal":"2026-09-27T18:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 272254Z 04019G28KT 3/4SM R04R/P6000FT -RA BR OVC004 16/15 A2988 RMK AO2 PK WND 04030/2155 SLP117 P0001 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":9.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T23:32:00.000Z","obsTimeLocal":"2026-09-27T19:32:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 272332Z 04017G30KT 1SM R04R/P6000FT -RA BR OVC004 16/15 A2989 RMK AO2 PK WND 04030/2328 P0001 T01560150","temp":15.6,"dewpoint":15,"humidity":96,"wind":8.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T23:54:00.000Z","obsTimeLocal":"2026-09-27T19:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 272354Z 03017G32KT 1SM R04R/P6000FT -RA BR OVC004 16/15 A2989 RMK AO2 PK WND 03034/2340 TWR VIS 1 1/2 SLP122 P0002 60006 T01560150 10156 20156 53016","temp":15.6,"dewpoint":15,"humidity":96,"wind":8.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-28T00:54:00.000Z","obsTimeLocal":"2026-09-27T20:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 280054Z 02019G29KT 1SM R04R/P6000FT -RA BR OVC004 14/14 A2990 RMK AO2 PK WND 04031/2356 TWR VIS 1 1/2 SLP123 P0002 T01440139","temp":14.4,"dewpoint":13.9,"humidity":97,"wind":9.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-28T01:54:00.000Z","obsTimeLocal":"2026-09-27T21:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 280154Z 03022G32KT 1 1/2SM -RA BR OVC004 14/13 A2990 RMK AO2 PK WND 03032/0154 SFC VIS 2 SLP125 P0001 T01390133","temp":13.9,"dewpoint":13.3,"humidity":96,"wind":11.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-28T02:54:00.000Z","obsTimeLocal":"2026-09-27T22:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 280254Z 02021G29KT 1 1/2SM -RA BR OVC004 14/13 A2990 RMK AO2 PK WND 03031/0233 SFC VIS 2 1/2 SLP125 P0010 60013 T01390133 51003","temp":13.9,"dewpoint":13.3,"humidity":96,"wind":10.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-28T03:54:00.000Z","obsTimeLocal":"2026-09-27T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 280354Z 02020G26KT 1 1/2SM -RA BR OVC004 14/13 A2990 RMK AO2 PK WND 02030/0343 SFC VIS 2 1/2 SLP125 P0002 T01390133","temp":13.9,"dewpoint":13.3,"humidity":96,"wind":10.3,"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/2026-09-27","json":"https://weathermarket.io/api/station/KBOS/2026-09-27","record":"https://weathermarket.io/api/station/KBOS/2026-09-27?format=record","prev":"https://weathermarket.io/station/KBOS/2026-09-26","next":"https://weathermarket.io/station/KBOS/2026-09-28","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=27&year2=2026&month2=9&day2=29&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=27&hora=4&anof=2026&mesf=9&dayf=28&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KBOS"}}}