{"station":{"icao":"ESSA","city":{"slug":"stockholm","name":"Stockholm","country":"Sweden"},"timezone":"Europe/Stockholm","lat":59.33,"lon":18.07,"us":false,"html":"https://weathermarket.io/station/ESSA","json":"https://weathermarket.io/api/station/ESSA","nwsCli":null},"date":"2026-09-27","window":{"date":"2026-09-27","timezone":"Europe/Stockholm","dayStartUtc":"2026-09-26T22:00:00.000Z","dayEndUtc":"2026-09-27T22:00:00.000Z","utcOffsetStart":"+02:00","utcOffsetEnd":"+02:00","hours":24},"complete":true,"values":{"tmax":15,"tmaxAt":"2026-09-27T13:50:00.000Z","tmin":4,"tminAt":"2026-09-27T02:20:00.000Z","tavg":9.4,"humidityMean":90.1,"windMean":3.3,"windMax":5.1,"windMaxAt":"2026-09-27T06:20:00.000Z","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":"2026-09-27T13:50:00.000Z","obsTimeLocal":"2026-09-27T15:50:00+02:00","metarType":"METAR","raw":"METAR ESSA 271350Z 20007KT 170V230 9999 FEW026 15/10 Q1026 NOSIG","temp":15,"dewpoint":10,"humidity":72,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-09-27T02:20:00.000Z","obsTimeLocal":"2026-09-27T04:20:00+02:00","metarType":"METAR","raw":"METAR ESSA 270220Z 22003KT 0750 R01L/1400N R19R/0450N R01R/P2000N R19L/1300D FG NSC 04/04 Q1022 TEMPO 5000","temp":4,"dewpoint":4,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-09-27T06:20:00.000Z","obsTimeLocal":"2026-09-27T08:20:00+02:00","metarType":"METAR","raw":"METAR ESSA 270620Z 25010KT 2800 BR OVC003 08/08 Q1024 BECMG 0300 FG","temp":8,"dewpoint":8,"humidity":100,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-09-28T01:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":30,"normalIntervalMin":30,"thresholdMinutes":60},"reasons":[],"holdHours":3},"revision":"01034f09971f0456","lastChangedAt":"2026-09-27T21:54:38.222Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/ESSA/2026-09-27?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":48,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-09-27T13:50:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-09-27T02:20:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":15,"tmin":4,"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":"2026-09-26T22:20:00.000Z","obsTimeLocal":"2026-09-27T00:20:00+02:00","metarType":null,"raw":"METAR ESSA 262220Z 26006KT CAVOK 07/07 Q1020 NOSIG","temp":7,"dewpoint":7,"humidity":100,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T22:50:00.000Z","obsTimeLocal":"2026-09-27T00:50:00+02:00","metarType":null,"raw":"METAR ESSA 262250Z 27004KT CAVOK 07/07 Q1020 NOSIG","temp":7,"dewpoint":7,"humidity":100,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-26T23:20:00.000Z","obsTimeLocal":"2026-09-27T01:20:00+02:00","metarType":null,"raw":"METAR ESSA 262320Z 26005KT CAVOK 06/06 Q1021 TEMPO 1000 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NOSIG","temp":10,"dewpoint":8,"humidity":87,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T19:20:00.000Z","obsTimeLocal":"2026-09-27T21:20:00+02:00","metarType":"METAR","raw":"METAR ESSA 271920Z 18006KT CAVOK 09/08 Q1026 NOSIG","temp":9,"dewpoint":8,"humidity":93,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T19:50:00.000Z","obsTimeLocal":"2026-09-27T21:50:00+02:00","metarType":"METAR","raw":"METAR ESSA 271950Z 17006KT CAVOK 09/07 Q1026 NOSIG","temp":9,"dewpoint":7,"humidity":87,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T20:20:00.000Z","obsTimeLocal":"2026-09-27T22:20:00+02:00","metarType":"METAR","raw":"METAR ESSA 272020Z 15006KT CAVOK 10/08 Q1026 NOSIG","temp":10,"dewpoint":8,"humidity":87,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T20:50:00.000Z","obsTimeLocal":"2026-09-27T22:50:00+02:00","metarType":"METAR","raw":"METAR ESSA 272050Z 14007KT CAVOK 09/08 Q1026 NOSIG","temp":9,"dewpoint":8,"humidity":93,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T21:20:00.000Z","obsTimeLocal":"2026-09-27T23:20:00+02:00","metarType":"METAR","raw":"METAR ESSA 272120Z 17007KT CAVOK 09/08 Q1026 NOSIG","temp":9,"dewpoint":8,"humidity":93,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-09-27T21:50:00.000Z","obsTimeLocal":"2026-09-27T23:50:00+02:00","metarType":"METAR","raw":"METAR ESSA 272150Z 16007KT CAVOK 09/08 Q1026 NOSIG","temp":9,"dewpoint":8,"humidity":93,"wind":3.6,"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/ESSA/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/ESSA/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for ESSA for the contract date (station-local calendar day), as published at https://weathermarket.io/station/ESSA/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/ESSA/2026-09-27","json":"https://weathermarket.io/api/station/ESSA/2026-09-27","record":"https://weathermarket.io/api/station/ESSA/2026-09-27?format=record","prev":"https://weathermarket.io/station/ESSA/2026-09-26","next":"https://weathermarket.io/station/ESSA/2026-09-28","station":"https://weathermarket.io/station/ESSA","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=ESSA&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=ESSA&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=9&day=26&hora=22&anof=2026&mesf=9&dayf=27&horaf=21&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=ESSA"}}}