{"station":{"icao":"LEMD","city":{"slug":"madrid","name":"Madrid","country":"Spain"},"timezone":"Europe/Madrid","lat":40.42,"lon":-3.7,"us":false,"html":"https://weathermarket.io/station/LEMD","json":"https://weathermarket.io/api/station/LEMD","nwsCli":null},"date":"2026-10-18","window":{"date":"2026-10-18","timezone":"Europe/Madrid","dayStartUtc":"2026-10-17T22:00:00.000Z","dayEndUtc":"2026-10-18T22:00:00.000Z","utcOffsetStart":"+02:00","utcOffsetEnd":"+02:00","hours":24},"complete":true,"values":{"tmax":15,"tmaxAt":"2026-10-17T22:00:00.000Z","tmin":10,"tminAt":"2026-10-18T07:00:00.000Z","tavg":11.9,"humidityMean":76.6,"windMean":3.4,"windMax":5.7,"windMaxAt":"2026-10-18T11:00:00.000Z","precipObservedCount":20,"nObservations":50,"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":"2026-10-17T22:00:00.000Z","obsTimeLocal":"2026-10-18T00:00:00+02:00","metarType":"METAR","raw":"METAR LEMD 172200Z 35007KT 330V030 9999 -RA FEW023 FEW048TCU BKN065 15/12 Q1017 NOSIG","temp":15,"dewpoint":12,"humidity":82,"wind":3.6,"precipObserved":true,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-18T07:00:00.000Z","obsTimeLocal":"2026-10-18T09:00:00+02:00","metarType":"METAR","raw":"METAR LEMD 180700Z 34006KT 300V050 9999 -SHRA OVC045TCU 10/09 Q1017 NOSIG","temp":10,"dewpoint":9,"humidity":94,"wind":3.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-18T11:00:00.000Z","obsTimeLocal":"2026-10-18T13:00:00+02:00","metarType":"METAR","raw":"METAR LEMD 181100Z 05011KT 350V100 9999 -RA FEW044 SCT060 BKN077 12/05 Q1018 NOSIG","temp":12,"dewpoint":5,"humidity":62,"wind":5.7,"precipObserved":true,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-19T01:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":30,"normalIntervalMin":30,"thresholdMinutes":60},"reasons":[],"holdHours":3},"revision":"a6d7b668879e6509","lastChangedAt":"2026-10-18T21:34:38.970Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/LEMD/2026-10-18?format=record","status":"anchored","sha256":"62c199ee2dbca347ebf1576e6d381d02f4ed17c1767231b99e702978776469ae","revision":"a6d7b668879e6509","flareTxHash":"0x980c24143f943fd2d33b5da7fa1934b94e60f3b68799491cc1eab718fa141a0f","flareBlock":72443612,"anchoredAt":"2026-10-19T01:02:30.907Z","explorer":"https://flare-explorer.flare.network/tx/0x980c24143f943fd2d33b5da7fa1934b94e60f3b68799491cc1eab718fa141a0f","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":50,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-17T22:00:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-18T07:00:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":15,"tmin":10,"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":"2026-10-17T22:00:00.000Z","obsTimeLocal":"2026-10-18T00:00:00+02:00","metarType":"METAR","raw":"METAR LEMD 172200Z 35007KT 330V030 9999 -RA FEW023 FEW048TCU BKN065 15/12 Q1017 NOSIG","temp":15,"dewpoint":12,"humidity":82,"wind":3.6,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T22:30:00.000Z","obsTimeLocal":"2026-10-18T00:30:00+02:00","metarType":"METAR","raw":"METAR LEMD 172230Z 01005KT 330V080 9999 SCT023 SCT036 BKN055 14/12 Q1017 NOSIG","temp":14,"dewpoint":12,"humidity":88,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-17T23:00:00.000Z","obsTimeLocal":"2026-10-18T01:00:00+02:00","metarType":"METAR","raw":"METAR LEMD 172300Z 35004KT 290V040 9999 FEW022 SCT025 BKN050 14/11 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NOSIG","temp":11,"dewpoint":7,"humidity":76,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-18T21:00:00.000Z","obsTimeLocal":"2026-10-18T23:00:00+02:00","metarType":"METAR","raw":"METAR LEMD 182100Z 36007KT 320V040 9999 OVC033 11/07 Q1018 NOSIG","temp":11,"dewpoint":7,"humidity":76,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-18T21:30:00.000Z","obsTimeLocal":"2026-10-18T23:30:00+02:00","metarType":"METAR","raw":"METAR LEMD 182130Z 36006KT 320V070 9999 DZ OVC033 11/07 Q1018 NOSIG","temp":11,"dewpoint":7,"humidity":76,"wind":3.1,"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).","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/LEMD/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/LEMD/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for LEMD for the contract date (station-local calendar day), as published at https://weathermarket.io/station/LEMD/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/LEMD/2026-10-18","json":"https://weathermarket.io/api/station/LEMD/2026-10-18","record":"https://weathermarket.io/api/station/LEMD/2026-10-18?format=record","prev":"https://weathermarket.io/station/LEMD/2026-10-17","next":"https://weathermarket.io/station/LEMD/2026-10-19","station":"https://weathermarket.io/station/LEMD","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=LEMD&data=metar&year1=2026&month1=10&day1=17&year2=2026&month2=10&day2=19&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=LEMD&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=10&day=17&hora=22&anof=2026&mesf=10&dayf=18&horaf=21&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=LEMD"}}}