{"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":"2026-09-26","window":{"date":"2026-09-26","timezone":"America/New_York","dayStartUtc":"2026-09-26T04:00:00.000Z","dayEndUtc":"2026-09-27T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":16.1,"tmaxAt":"2026-09-26T04:54:00.000Z","tmin":12.8,"tminAt":"2026-09-26T17:30:00.000Z","tavg":14,"humidityMean":89.9,"windMean":12.1,"windMax":16.5,"windMaxAt":"2026-09-26T23:11:00.000Z","precipObservedCount":37,"nObservations":40,"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":"2026-09-26T04:54:00.000Z","obsTimeLocal":"2026-09-26T00:54:00-04:00","metarType":null,"raw":"METAR KBOS 260454Z 04018G28KT 10SM BKN080 OVC100 16/12 A2999 RMK AO2 PK WND 06031/0411 RAE21 SLP156 P0000 T01610117 401780100","temp":16.1,"dewpoint":11.7,"humidity":75,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-09-26T17:30:00.000Z","obsTimeLocal":"2026-09-26T13:30:00-04:00","metarType":null,"raw":"SPECI KBOS 261730Z 02022G37KT 1 1/4SM R04R/5000VP6000FT -RA BR OVC009 13/12 A2988 RMK AO2 PK WND 03037/1725 P0004 T01280122","temp":12.8,"dewpoint":12.2,"humidity":96,"wind":11.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-09-26T23:11:00.000Z","obsTimeLocal":"2026-09-26T19:11:00-04:00","metarType":null,"raw":"SPECI KBOS 262311Z 03032G41KT 2 1/2SM -RA BR BKN009 BKN014 OVC027 14/13 A2983 RMK AO2 PK WND 03046/2256 VIS 2V3 P0003 T01390128","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":16.5,"precipObserved":true,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-09-27T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"6a66d7ab8e87bdd1","lastChangedAt":"2026-09-27T03:57:38.724Z","corrections":[{"obsTimeUtc":"2026-09-27T02:54:00.000Z","correctedAt":"2026-09-27T02:58:39.206Z","original":"METAR KBOS 270254Z 04025G36KT 4SM BR OVC008 14/13 A2982 RMK AO2 PK WND 04038/0221 RAE54 SLP098 P0002 60016 T01440133 56006 $","corrected":"METAR KBOS 270254Z COR 04025G36KT 4SM -RA BR OVC008 14/13 A2982 RMK AO2 PK WND 04038/0221 SLP098 P0002 60016 T01440133 56006 $"}],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KBOS/2026-09-26?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":40,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-09-26T04:54:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-09-26T17:30:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":16.1,"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":16.11,"tmin":12.78,"precip":25.91,"corrected":false,"issuedAt":"2026-09-27T05:25:00.000Z","html":"https://weathermarket.io/nws-cli/KBOS/2026-09-26","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-09-26"},"observations":[{"obsTimeUtc":"2026-09-26T04:54:00.000Z","obsTimeLocal":"2026-09-26T00:54:00-04:00","metarType":null,"raw":"METAR KBOS 260454Z 04018G28KT 10SM BKN080 OVC100 16/12 A2999 RMK AO2 PK WND 06031/0411 RAE21 SLP156 P0000 T01610117 401780100","temp":16.1,"dewpoint":11.7,"humidity":75,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T05:54:00.000Z","obsTimeLocal":"2026-09-26T01:54:00-04:00","metarType":null,"raw":"METAR KBOS 260554Z 04019G28KT 10SM OVC080 16/12 A2998 RMK AO2 PK WND 03028/0548 RAB40E52 SLP150 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03016KT 4SM -RA BR FEW016 OVC039 14/12 A2994 RMK AO2 PK WND 05026/0922 SLP137 P0003 T01390122","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":8.2,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T10:54:00.000Z","obsTimeLocal":"2026-09-26T06:54:00-04:00","metarType":null,"raw":"METAR KBOS 261054Z 02017G24KT 3SM -RA BR OVC041 14/12 A2995 RMK AO2 PK WND 02027/1017 SLP141 P0004 T01390117","temp":13.9,"dewpoint":11.7,"humidity":87,"wind":8.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T11:54:00.000Z","obsTimeLocal":"2026-09-26T07:54:00-04:00","metarType":null,"raw":"METAR KBOS 261154Z 02022G31KT 3SM -RA OVC038 14/11 A2994 RMK AO2 PK WND 02031/1153 RAE23B52 SLP137 P0001 60011 70012 T01440111 10161 20133 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OVC020 14/12 A2989 RMK AO2 PK WND 02036/1530 SLP122 P0004 T01390117","temp":13.9,"dewpoint":11.7,"humidity":87,"wind":13.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T16:03:00.000Z","obsTimeLocal":"2026-09-26T12:03:00-04:00","metarType":null,"raw":"SPECI KBOS 261603Z 02025G38KT 3SM -RA BR OVC020 14/12 A2989 RMK AO2 PK WND 02038/1556 P0000 T01390122","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":12.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T16:44:00.000Z","obsTimeLocal":"2026-09-26T12:44:00-04:00","metarType":null,"raw":"SPECI KBOS 261644Z 02027G39KT 2SM -RA BR BKN013 BKN019 OVC024 13/12 A2988 RMK AO2 PK WND 02039/1641 P0001 T01330122","temp":13.3,"dewpoint":12.2,"humidity":93,"wind":13.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T16:54:00.000Z","obsTimeLocal":"2026-09-26T12:54:00-04:00","metarType":null,"raw":"METAR KBOS 261654Z 02027G36KT 1 3/4SM 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03041/1933 SLP117 P0001 T01330117","temp":13.3,"dewpoint":11.7,"humidity":90,"wind":12.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T20:06:00.000Z","obsTimeLocal":"2026-09-26T16:06:00-04:00","metarType":null,"raw":"SPECI KBOS 262006Z 03022G37KT 1 1/2SM R04R/4500VP6000FT -RA BR BKN009 OVC027 13/12 A2987 RMK AO2 PK WND 03037/2002 P0000 T01330122","temp":13.3,"dewpoint":12.2,"humidity":93,"wind":11.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T20:54:00.000Z","obsTimeLocal":"2026-09-26T16:54:00-04:00","metarType":null,"raw":"METAR KBOS 262054Z 03021G33KT 1 1/2SM R04R/6000VP6000FT -RA BR BKN009 OVC018 13/13 A2986 RMK AO2 PK WND 03037/2002 SLP112 P0005 60011 T01330128 58006","temp":13.3,"dewpoint":12.8,"humidity":97,"wind":10.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T21:54:00.000Z","obsTimeLocal":"2026-09-26T17:54:00-04:00","metarType":null,"raw":"METAR KBOS 262154Z 03029G43KT 1 1/2SM R04R/5500VP6000FT +RA BR BKN009 BKN016 OVC021 14/12 A2985 RMK AO2 PK WND 03047/2133 SLP107 VIS 1V2 P0008 T01390122","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":14.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T22:54:00.000Z","obsTimeLocal":"2026-09-26T18:54:00-04:00","metarType":null,"raw":"METAR KBOS 262254Z 03029G43KT 1 1/2SM RA BR BKN009 OVC016 14/13 A2984 RMK AO2 PK WND 03044/2200 SLP104 VIS 1V2 P0026 T01390128","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":14.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T23:11:00.000Z","obsTimeLocal":"2026-09-26T19:11:00-04:00","metarType":null,"raw":"SPECI KBOS 262311Z 03032G41KT 2 1/2SM -RA BR BKN009 BKN014 OVC027 14/13 A2983 RMK AO2 PK WND 03046/2256 VIS 2V3 P0003 T01390128","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":16.5,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T23:54:00.000Z","obsTimeLocal":"2026-09-26T19:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 262354Z 03029G44KT 2 1/2SM -RA BR BKN009 OVC014 14/13 A2984 RMK AO2 PK WND 03046/2256 SLP104 VIS 2V4 P0005 60050 T01440128 10144 20128 56008","temp":14.4,"dewpoint":12.8,"humidity":90,"wind":14.9,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T00:21:00.000Z","obsTimeLocal":"2026-09-26T20:21:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 270021Z 04026G46KT 1 1/2SM -RA BR SCT009 OVC014 14/13 A2984 RMK AO2 PK WND 04050/2359 P0002 T01440133 $","temp":14.4,"dewpoint":13.3,"humidity":93,"wind":13.4,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T00:54:00.000Z","obsTimeLocal":"2026-09-26T20:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270054Z 04028G40KT 1 1/2SM -RA BR SCT009 OVC014 14/13 A2984 RMK AO2 PK WND 04050/2359 SLP102 P0005 T01440128 $","temp":14.4,"dewpoint":12.8,"humidity":90,"wind":14.4,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T01:54:00.000Z","obsTimeLocal":"2026-09-26T21:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270154Z 03024G38KT 2 1/2SM RA BR OVC009 14/13 A2982 RMK AO2 PK WND 05046/0143 SLP097 P0009 T01440133 $","temp":14.4,"dewpoint":13.3,"humidity":93,"wind":12.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T02:18:00.000Z","obsTimeLocal":"2026-09-26T22:18:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 270218Z 03022G36KT 4SM -RA BR OVC009 14/13 A2983 RMK AO2 PK WND 03037/0157 P0002 T01440133 $","temp":14.4,"dewpoint":13.3,"humidity":93,"wind":11.3,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T02:54:00.000Z","obsTimeLocal":"2026-09-26T22:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270254Z COR 04025G36KT 4SM -RA BR OVC008 14/13 A2982 RMK AO2 PK WND 04038/0221 SLP098 P0002 60016 T01440133 56006 $","temp":14.4,"dewpoint":13.3,"humidity":93,"wind":12.9,"precipObserved":true,"correctedAt":"2026-09-27T02:58:39.206Z","originalRaw":"METAR KBOS 270254Z 04025G36KT 4SM BR OVC008 14/13 A2982 RMK AO2 PK WND 04038/0221 RAE54 SLP098 P0002 60016 T01440133 56006 $"},{"obsTimeUtc":"2026-09-27T03:27:00.000Z","obsTimeLocal":"2026-09-26T23:27:00-04:00","metarType":"SPECI","raw":"SPECI KBOS 270327Z 04028G41KT 1 1/2SM -RA BR OVC008 14/13 A2980 RMK AO2 PK WND 04041/0325 RAB0255 P0000 T01440133 $","temp":14.4,"dewpoint":13.3,"humidity":93,"wind":14.4,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T03:54:00.000Z","obsTimeLocal":"2026-09-26T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 270354Z 03024G39KT 1 1/2SM -RA BR OVC008 14/13 A2980 RMK AO2 PK WND 04041/0325 RAB0255 SLP090 P0003 T01440133 $","temp":14.4,"dewpoint":13.3,"humidity":93,"wind":12.3,"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/2026-09-26","json":"https://weathermarket.io/api/station/KBOS/2026-09-26","record":"https://weathermarket.io/api/station/KBOS/2026-09-26?format=record","prev":"https://weathermarket.io/station/KBOS/2026-09-25","next":"https://weathermarket.io/station/KBOS/2026-09-27","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=26&year2=2026&month2=9&day2=28&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=26&hora=4&anof=2026&mesf=9&dayf=27&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KBOS"}}}