{"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":"2026-10-31","window":{"date":"2026-10-31","timezone":"America/New_York","dayStartUtc":"2026-10-31T04:00:00.000Z","dayEndUtc":"2026-11-01T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":12.8,"tmaxAt":"2026-10-31T19:54:00.000Z","tmin":6.1,"tminAt":"2026-11-01T03:54:00.000Z","tavg":9.5,"humidityMean":43,"windMean":5,"windMax":8.2,"windMaxAt":"2026-10-31T12:54:00.000Z","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":"2026-10-31T19:54:00.000Z","obsTimeLocal":"2026-10-31T15:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311954Z 32009KT 10SM FEW170 FEW220 13/M04 A3035 RMK AO2 SLP276 T01281039 $","temp":12.8,"dewpoint":-3.9,"humidity":31,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-11-01T03:54:00.000Z","obsTimeLocal":"2026-10-31T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 010354Z 33006KT 10SM CLR 06/M03 A3047 RMK AO2 SLP318 T00611033 $","temp":6.1,"dewpoint":-3.3,"humidity":51,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-31T12:54:00.000Z","obsTimeLocal":"2026-10-31T08:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311254Z 33016G25KT 10SM FEW060 08/M03 A3036 RMK AO2 PK WND 30028/1218 SLP281 T00831033 $","temp":8.3,"dewpoint":-3.3,"humidity":44,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-11-01T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"9c0401e3abb50cab","lastChangedAt":"2026-11-01T03:57:39.752Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KBOS/2026-10-31?format=record","status":"anchored","sha256":"b37c4a31a626dbdd6eb378dd2b292883ba9c8d0833ee10ba3e2cf819a96f1bf4","revision":"9c0401e3abb50cab","flareTxHash":"0xd1820a9490fa0f7d5a2f7c7036f9dd753ea96f4b0d435325aecd2195f0c7bc47","flareBlock":73860312,"anchoredAt":"2026-11-06T05:01:27.405Z","explorer":"https://flare-explorer.flare.network/tx/0xd1820a9490fa0f7d5a2f7c7036f9dd753ea96f4b0d435325aecd2195f0c7bc47","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":"2026-10-31T19:54:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-11-01T03:54:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":12.8,"tmin":6.1,"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":12.78,"tmin":5.56,"precip":0,"corrected":false,"issuedAt":"2026-11-01T05:26:00.000Z","html":"https://weathermarket.io/nws-cli/KBOS/2026-10-31","json":"https://weathermarket.io/api/nws-cli/KBOS/2026-10-31"},"observations":[{"obsTimeUtc":"2026-10-31T04:54:00.000Z","obsTimeLocal":"2026-10-31T00:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 310454Z 30009KT 10SM CLR 10/01 A3019 RMK AO2 SLP221 T01000011 402220100 $","temp":10,"dewpoint":1.1,"humidity":54,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T05:54:00.000Z","obsTimeLocal":"2026-10-31T01:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 310554Z 29009KT 10SM CLR 09/01 A3021 RMK AO2 SLP228 T00940011 10128 20094 53017 $","temp":9.4,"dewpoint":1.1,"humidity":56,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T06:54:00.000Z","obsTimeLocal":"2026-10-31T02:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 310654Z 29010KT 10SM CLR 09/01 A3022 RMK AO2 SLP234 T00890011 $","temp":8.9,"dewpoint":1.1,"humidity":58,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T07:54:00.000Z","obsTimeLocal":"2026-10-31T03:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 310754Z 33011KT 10SM CLR 09/01 A3024 RMK AO2 SLP240 T00890011 $","temp":8.9,"dewpoint":1.1,"humidity":58,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T08:54:00.000Z","obsTimeLocal":"2026-10-31T04:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 310854Z 33013G20KT 10SM CLR 08/M02 A3027 RMK AO2 SLP250 T00831017 53022 $","temp":8.3,"dewpoint":-1.7,"humidity":49,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T09:54:00.000Z","obsTimeLocal":"2026-10-31T05:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 310954Z 31014G20KT 10SM CLR 08/M02 A3030 RMK AO2 SLP261 T00831022 $","temp":8.3,"dewpoint":-2.2,"humidity":48,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T10:54:00.000Z","obsTimeLocal":"2026-10-31T06:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311054Z 31012G18KT 10SM FEW060 08/M03 A3032 RMK AO2 SLP267 T00781028 $","temp":7.8,"dewpoint":-2.8,"humidity":47,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T11:54:00.000Z","obsTimeLocal":"2026-10-31T07:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311154Z 30012G21KT 10SM FEW060 08/M03 A3035 RMK AO2 SLP275 T00781028 10094 20072 51025 $","temp":7.8,"dewpoint":-2.8,"humidity":47,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T12:54:00.000Z","obsTimeLocal":"2026-10-31T08:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311254Z 33016G25KT 10SM FEW060 08/M03 A3036 RMK AO2 PK WND 30028/1218 SLP281 T00831033 $","temp":8.3,"dewpoint":-3.3,"humidity":44,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T13:54:00.000Z","obsTimeLocal":"2026-10-31T09:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311354Z 32014G26KT 10SM FEW060 09/M03 A3037 RMK AO2 PK WND 34026/1349 SLP283 T00941033 $","temp":9.4,"dewpoint":-3.3,"humidity":41,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T14:54:00.000Z","obsTimeLocal":"2026-10-31T10:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311454Z 34014G23KT 10SM FEW060 10/M05 A3038 RMK AO2 PK WND 30026/1356 SLP286 T01001050 51010 $","temp":10,"dewpoint":-5,"humidity":34,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T15:54:00.000Z","obsTimeLocal":"2026-10-31T11:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311554Z 33013G21KT 10SM FEW060 11/M06 A3037 RMK AO2 SLP284 T01111056 $","temp":11.1,"dewpoint":-5.6,"humidity":31,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T16:54:00.000Z","obsTimeLocal":"2026-10-31T12:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311654Z 35011G19KT 10SM FEW060 11/M06 A3036 RMK AO2 SLP280 T01111056 $","temp":11.1,"dewpoint":-5.6,"humidity":31,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T17:54:00.000Z","obsTimeLocal":"2026-10-31T13:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311754Z 32009G16KT 10SM FEW200 12/M04 A3035 RMK AO2 SLP276 T01171044 10117 20078 58010 $","temp":11.7,"dewpoint":-4.4,"humidity":32,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T18:54:00.000Z","obsTimeLocal":"2026-10-31T14:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311854Z 30010G22KT 10SM FEW200 12/M04 A3035 RMK AO2 SLP275 T01221039 $","temp":12.2,"dewpoint":-3.9,"humidity":32,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T19:54:00.000Z","obsTimeLocal":"2026-10-31T15:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 311954Z 32009KT 10SM FEW170 FEW220 13/M04 A3035 RMK AO2 SLP276 T01281039 $","temp":12.8,"dewpoint":-3.9,"humidity":31,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T20:54:00.000Z","obsTimeLocal":"2026-10-31T16:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 312054Z 31006KT 10SM FEW170 SCT200 BKN250 12/M04 A3037 RMK AO2 SLP282 T01171044 53007 $","temp":11.7,"dewpoint":-4.4,"humidity":32,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T21:54:00.000Z","obsTimeLocal":"2026-10-31T17:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 312154Z 31006KT 10SM FEW170 BKN210 BKN250 11/M04 A3038 RMK AO2 SLP288 T01111044 $","temp":11.1,"dewpoint":-4.4,"humidity":33,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T22:54:00.000Z","obsTimeLocal":"2026-10-31T18:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 312254Z 35005KT 10SM BKN200 BKN250 11/M04 A3040 RMK AO2 SLP295 T01061039 $","temp":10.6,"dewpoint":-3.9,"humidity":36,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-31T23:54:00.000Z","obsTimeLocal":"2026-10-31T19:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 312354Z 35004KT 10SM SCT220 09/M03 A3042 RMK AO2 SLP302 T00941028 10128 20094 53019 $","temp":9.4,"dewpoint":-2.8,"humidity":42,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T00:54:00.000Z","obsTimeLocal":"2026-10-31T20:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 010054Z 35007KT 10SM FEW220 09/M03 A3044 RMK AO2 SLP306 T00891033 $","temp":8.9,"dewpoint":-3.3,"humidity":42,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T01:54:00.000Z","obsTimeLocal":"2026-10-31T21:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 010154Z 36008KT 10SM FEW250 07/M02 A3046 RMK AO2 SLP313 T00671022 $","temp":6.7,"dewpoint":-2.2,"humidity":53,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T02:54:00.000Z","obsTimeLocal":"2026-10-31T22:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 010254Z 34005KT 10SM CLR 07/M03 A3046 RMK AO2 SLP315 T00671028 51014 $","temp":6.7,"dewpoint":-2.8,"humidity":51,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-01T03:54:00.000Z","obsTimeLocal":"2026-10-31T23:54:00-04:00","metarType":"METAR","raw":"METAR KBOS 010354Z 33006KT 10SM CLR 06/M03 A3047 RMK AO2 SLP318 T00611033 $","temp":6.1,"dewpoint":-3.3,"humidity":51,"wind":3.1,"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/2026-10-31","json":"https://weathermarket.io/api/station/KBOS/2026-10-31","record":"https://weathermarket.io/api/station/KBOS/2026-10-31?format=record","prev":"https://weathermarket.io/station/KBOS/2026-10-30","next":"https://weathermarket.io/station/KBOS/2026-11-01","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=31&year2=2026&month2=11&day2=2&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=31&hora=4&anof=2026&mesf=11&dayf=1&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KBOS"}}}