{"station":{"icao":"ZMCK","city":{"slug":"ulaanbaatar","name":"Ulaanbaatar","country":"Mongolia"},"timezone":"Asia/Ulaanbaatar","lat":47.89,"lon":106.91,"us":false,"html":"https://weathermarket.io/station/ZMCK","json":"https://weathermarket.io/api/station/ZMCK","nwsCli":null},"date":"2026-11-08","window":{"date":"2026-11-08","timezone":"Asia/Ulaanbaatar","dayStartUtc":"2026-11-07T16:00:00.000Z","dayEndUtc":"2026-11-08T16:00:00.000Z","utcOffsetStart":"+08:00","utcOffsetEnd":"+08:00","hours":24},"complete":true,"values":{"tmax":0,"tmaxAt":"2026-11-08T07:00:00.000Z","tmin":-21,"tminAt":"2026-11-07T22:30:00.000Z","tavg":-10.4,"humidityMean":58.7,"windMean":2.9,"windMax":5.1,"windMaxAt":"2026-11-07T19:30:00.000Z","precipObservedCount":0,"nObservations":48,"maxGapMinutes":30,"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":"2026-11-08T07:00:00.000Z","obsTimeLocal":"2026-11-08T15:00:00+08:00","metarType":"METAR","raw":"METAR ZMCK 080700Z VRB01MPS CAVOK 00/M15 Q1034 NOSIG RMK QFE658.1 32","temp":0,"dewpoint":-15,"humidity":31,"wind":1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-11-07T22:30:00.000Z","obsTimeLocal":"2026-11-08T06:30:00+08:00","metarType":"METAR","raw":"METAR ZMCK 072230Z 09003MPS CAVOK M21/M24 Q1038 NOSIG RMK QFE660.7 77","temp":-21,"dewpoint":-24,"humidity":77,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-11-07T19:30:00.000Z","obsTimeLocal":"2026-11-08T03:30:00+08:00","metarType":"METAR","raw":"METAR ZMCK 071930Z 08005MPS CAVOK M19/M22 Q1039 NOSIG RMK QFE661.3 76","temp":-19,"dewpoint":-22,"humidity":77,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-11-08T19:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":30,"normalIntervalMin":30,"thresholdMinutes":60},"reasons":[],"holdHours":3},"revision":"0226cdd5a4ec2346","lastChangedAt":"2026-11-08T15:33:42.586Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/ZMCK/2026-11-08?format=record","status":"anchored","sha256":"f917d1c27232132f0f5dc8a22bb75cbcc7832455fc0cd76d37ec9598f76abb1c","revision":"0226cdd5a4ec2346","flareTxHash":"0x821716d3f5fe3c17aa261e0b9ab75e6a9ce8d9ebdb17c8c8291123abe9e77849","flareBlock":74066197,"anchoredAt":"2026-11-08T19:01:24.144Z","explorer":"https://flare-explorer.flare.network/tx/0x821716d3f5fe3c17aa261e0b9ab75e6a9ce8d9ebdb17c8c8291123abe9e77849","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":48,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-11-08T07:00:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-11-07T22:30:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":0,"tmin":-21,"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":null,"observations":[{"obsTimeUtc":"2026-11-07T16:00:00.000Z","obsTimeLocal":"2026-11-08T00:00:00+08:00","metarType":"METAR","raw":"METAR ZMCK 071600Z VRB02MPS CAVOK M17/M20 Q1039 NOSIG RMK QFE661.5 77","temp":-17,"dewpoint":-20,"humidity":77,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-07T16:30:00.000Z","obsTimeLocal":"2026-11-08T00:30:00+08:00","metarType":"METAR","raw":"METAR ZMCK 071630Z VRB02MPS CAVOK M16/M19 Q1039 NOSIG RMK QFE661.6 76","temp":-16,"dewpoint":-19,"humidity":78,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-07T17:00:00.000Z","obsTimeLocal":"2026-11-08T01:00:00+08:00","metarType":"METAR","raw":"METAR ZMCK 071700Z VRB02MPS CAVOK M16/M20 Q1039 NOSIG RMK QFE661.6 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48","temp":-10,"dewpoint":-18,"humidity":52,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-08T13:00:00.000Z","obsTimeLocal":"2026-11-08T21:00:00+08:00","metarType":"METAR","raw":"METAR ZMCK 081300Z VRB02MPS CAVOK M07/M17 Q1032 NOSIG RMK QFE656.8 41","temp":-7,"dewpoint":-17,"humidity":45,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-08T13:30:00.000Z","obsTimeLocal":"2026-11-08T21:30:00+08:00","metarType":"METAR","raw":"METAR ZMCK 081330Z 09004MPS CAVOK M10/M18 Q1032 NOSIG RMK QFE656.8 51","temp":-10,"dewpoint":-18,"humidity":52,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-08T14:00:00.000Z","obsTimeLocal":"2026-11-08T22:00:00+08:00","metarType":"METAR","raw":"METAR ZMCK 081400Z VRB02MPS CAVOK M09/M17 Q1032 NOSIG RMK QFE656.8 47","temp":-9,"dewpoint":-17,"humidity":52,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-08T14:30:00.000Z","obsTimeLocal":"2026-11-08T22:30:00+08:00","metarType":"METAR","raw":"METAR ZMCK 081430Z 07003MPS CAVOK M10/M18 Q1032 NOSIG RMK QFE656.7 47","temp":-10,"dewpoint":-18,"humidity":52,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-08T15:00:00.000Z","obsTimeLocal":"2026-11-08T23:00:00+08:00","metarType":"METAR","raw":"METAR ZMCK 081500Z 08004MPS CAVOK M11/M18 Q1031 NOSIG RMK QFE656.4 54","temp":-11,"dewpoint":-18,"humidity":56,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-08T15:30:00.000Z","obsTimeLocal":"2026-11-08T23:30:00+08:00","metarType":"METAR","raw":"METAR ZMCK 081530Z 08004MPS CAVOK M09/M17 Q1031 NOSIG RMK QFE656.2 47","temp":-9,"dewpoint":-17,"humidity":52,"wind":4.1,"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).","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/ZMCK/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/ZMCK/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for ZMCK for the contract date (station-local calendar day), as published at https://weathermarket.io/station/ZMCK/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/ZMCK/2026-11-08","json":"https://weathermarket.io/api/station/ZMCK/2026-11-08","record":"https://weathermarket.io/api/station/ZMCK/2026-11-08?format=record","prev":"https://weathermarket.io/station/ZMCK/2026-11-07","next":"https://weathermarket.io/station/ZMCK/2026-11-09","station":"https://weathermarket.io/station/ZMCK","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=ZMCK&data=metar&year1=2026&month1=11&day1=7&year2=2026&month2=11&day2=9&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=ZMCK&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=11&day=7&hora=16&anof=2026&mesf=11&dayf=8&horaf=15&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=ZMCK"}}}