{"station":{"icao":"KIAD","city":{"slug":"washington","name":"Washington D.C.","country":"United States"},"timezone":"America/New_York","lat":38.91,"lon":-77.04,"us":true,"html":"https://weathermarket.io/station/KIAD","json":"https://weathermarket.io/api/station/KIAD","nwsCli":{"html":"https://weathermarket.io/nws-cli/KIAD","json":"https://weathermarket.io/api/nws-cli/KIAD"}},"date":"2026-11-10","window":{"date":"2026-11-10","timezone":"America/New_York","dayStartUtc":"2026-11-10T05:00:00.000Z","dayEndUtc":"2026-11-11T05:00:00.000Z","utcOffsetStart":"-05:00","utcOffsetEnd":"-05:00","hours":24},"complete":true,"values":{"tmax":21.1,"tmaxAt":"2026-11-10T19:52:00.000Z","tmin":3.9,"tminAt":"2026-11-10T05:52:00.000Z","tavg":11.6,"humidityMean":62.5,"windMean":2.2,"windMax":6.2,"windMaxAt":"2026-11-10T14:52:00.000Z","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":"2026-11-10T19:52:00.000Z","obsTimeLocal":"2026-11-10T14:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101952Z 23005KT 10SM CLR 21/03 A2994 RMK AO2 SLP137 T02110028","temp":21.1,"dewpoint":2.8,"humidity":30,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-11-10T05:52:00.000Z","obsTimeLocal":"2026-11-10T00:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 100552Z 00000KT 10SM CLR 04/02 A3008 RMK AO2 SLP187 T00390022 10128 20039 56002 $","temp":3.9,"dewpoint":2.2,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-11-10T14:52:00.000Z","obsTimeLocal":"2026-11-10T09:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101452Z 19012G20KT 10SM CLR 14/04 A3006 RMK AO2 SLP178 T01390039 58005","temp":13.9,"dewpoint":3.9,"humidity":51,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-11-11T08:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"935106c6fb76928e","lastChangedAt":"2026-11-11T04:55:38.190Z","corrections":[{"obsTimeUtc":"2026-11-10T10:52:00.000Z","correctedAt":"2026-11-10T10:57:38.993Z","original":"METAR KIAD 101052Z 00000KT 10SM CLR 04/02 A3009 RMK AO2 SLP188 T00390022 $","corrected":"METAR KIAD 101052Z COR 00000KT 10SM FEW120 04/02 A3009 RMK AO2 SLP188 T00390022 $"}],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KIAD/2026-11-10?format=record","status":"anchored","sha256":"a34940dcf981e71f6b4644d3ad0b971f8baf937bc9c3ba15b76dccf09706f01e","revision":"935106c6fb76928e","flareTxHash":"0xc26d4c5716eaf57aa4c613768db49136e78bfff8dbf96c96973683e3f68f64aa","flareBlock":74269110,"anchoredAt":"2026-11-11T08:01:15.166Z","explorer":"https://flare-explorer.flare.network/tx/0xc26d4c5716eaf57aa4c613768db49136e78bfff8dbf96c96973683e3f68f64aa","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":23,"suspect":1,"bad":0,"flagged":[{"obsTimeUtc":"2026-11-10T22:52:00.000Z","flag":"suspect","reasons":["step: temperature changed 5.5 C in 60 min (> 5)"]}]},"extremes":{"tmax":{"obsTimeUtc":"2026-11-10T19:52:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-11-10T05:52:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":21.1,"tmin":3.9,"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":21.11,"tmin":2.78,"precip":0,"corrected":false,"issuedAt":"2026-11-11T07:24:00.000Z","html":"https://weathermarket.io/nws-cli/KIAD/2026-11-10","json":"https://weathermarket.io/api/nws-cli/KIAD/2026-11-10"},"observations":[{"obsTimeUtc":"2026-11-10T05:52:00.000Z","obsTimeLocal":"2026-11-10T00:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 100552Z 00000KT 10SM CLR 04/02 A3008 RMK AO2 SLP187 T00390022 10128 20039 56002 $","temp":3.9,"dewpoint":2.2,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T06:52:00.000Z","obsTimeLocal":"2026-11-10T01:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 100652Z 14003KT 10SM CLR 04/02 A3008 RMK AO2 SLP186 T00440022 $","temp":4.4,"dewpoint":2.2,"humidity":86,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T07:52:00.000Z","obsTimeLocal":"2026-11-10T02:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 100752Z 00000KT 10SM FEW120 04/02 A3008 RMK AO2 SLP187 T00390022 $","temp":3.9,"dewpoint":2.2,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T08:52:00.000Z","obsTimeLocal":"2026-11-10T03:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 100852Z 00000KT 10SM FEW120 04/02 A3008 RMK AO2 SLP186 T00440022 58001 $","temp":4.4,"dewpoint":2.2,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T09:52:00.000Z","obsTimeLocal":"2026-11-10T04:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 100952Z 19003KT 10SM FEW120 04/02 A3009 RMK AO2 SLP188 T00390022 $","temp":3.9,"dewpoint":2.2,"humidity":89,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T10:52:00.000Z","obsTimeLocal":"2026-11-10T05:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101052Z COR 00000KT 10SM FEW120 04/02 A3009 RMK AO2 SLP188 T00390022 $","temp":3.9,"dewpoint":2.2,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":"2026-11-10T10:57:38.993Z","originalRaw":"METAR KIAD 101052Z 00000KT 10SM CLR 04/02 A3009 RMK AO2 SLP188 T00390022 $"},{"obsTimeUtc":"2026-11-10T11:52:00.000Z","obsTimeLocal":"2026-11-10T06:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101152Z 20006KT 10SM FEW060 05/02 A3007 RMK AO2 SLP183 T00500022 10050 20028 58003 $","temp":5,"dewpoint":2.2,"humidity":82,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T12:52:00.000Z","obsTimeLocal":"2026-11-10T07:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101252Z 19007KT 10SM FEW070 FEW250 07/03 A3007 RMK AO2 SLP183 T00670033 $","temp":6.7,"dewpoint":3.3,"humidity":79,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T13:52:00.000Z","obsTimeLocal":"2026-11-10T08:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101352Z 20008KT 10SM FEW250 10/04 A3007 RMK AO2 SLP184 T01000039","temp":10,"dewpoint":3.9,"humidity":66,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T14:52:00.000Z","obsTimeLocal":"2026-11-10T09:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101452Z 19012G20KT 10SM CLR 14/04 A3006 RMK AO2 SLP178 T01390039 58005","temp":13.9,"dewpoint":3.9,"humidity":51,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T15:52:00.000Z","obsTimeLocal":"2026-11-10T10:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101552Z 19010KT 10SM CLR 16/04 A3004 RMK AO2 SLP171 T01560044","temp":15.6,"dewpoint":4.4,"humidity":47,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T16:52:00.000Z","obsTimeLocal":"2026-11-10T11:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101652Z 22005KT 10SM CLR 18/04 A3001 RMK AO2 SLP161 T01780039","temp":17.8,"dewpoint":3.9,"humidity":40,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T17:52:00.000Z","obsTimeLocal":"2026-11-10T12:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101752Z 20009KT 10SM CLR 19/03 A2997 RMK AO2 SLP150 T01940028 10194 20044 58028","temp":19.4,"dewpoint":2.8,"humidity":33,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T18:52:00.000Z","obsTimeLocal":"2026-11-10T13:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101852Z 21004KT 10SM CLR 20/03 A2995 RMK AO2 SLP143 T02000028","temp":20,"dewpoint":2.8,"humidity":32,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T19:52:00.000Z","obsTimeLocal":"2026-11-10T14:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 101952Z 23005KT 10SM CLR 21/03 A2994 RMK AO2 SLP137 T02110028","temp":21.1,"dewpoint":2.8,"humidity":30,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T20:52:00.000Z","obsTimeLocal":"2026-11-10T15:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 102052Z 21006KT 10SM CLR 21/03 A2994 RMK AO2 SLP136 T02060033 56013","temp":20.6,"dewpoint":3.3,"humidity":32,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T21:52:00.000Z","obsTimeLocal":"2026-11-10T16:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 102152Z 22004KT 10SM CLR 18/04 A2994 RMK AO2 SLP139 T01830039","temp":18.3,"dewpoint":3.9,"humidity":38,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T22:52:00.000Z","obsTimeLocal":"2026-11-10T17:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 102252Z 15004KT 10SM CLR 13/05 A2996 RMK AO2 SLP146 T01280050","temp":12.8,"dewpoint":5,"humidity":59,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-10T23:52:00.000Z","obsTimeLocal":"2026-11-10T18:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 102352Z 24004KT 10SM CLR 13/04 A2998 RMK AO2 SLP151 T01280044 10211 20128 53014","temp":12.8,"dewpoint":4.4,"humidity":57,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-11T00:52:00.000Z","obsTimeLocal":"2026-11-10T19:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 110052Z 30009KT 10SM CLR 18/05 A2999 RMK AO2 SLP155 T01780050","temp":17.8,"dewpoint":5,"humidity":43,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-11T01:52:00.000Z","obsTimeLocal":"2026-11-10T20:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 110152Z 29004KT 10SM FEW100 14/05 A2999 RMK AO2 SLP157 T01440050","temp":14.4,"dewpoint":5,"humidity":53,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-11T02:52:00.000Z","obsTimeLocal":"2026-11-10T21:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 110252Z 00000KT 10SM CLR 11/05 A3001 RMK AO2 SLP162 T01060050 53011","temp":10.6,"dewpoint":5,"humidity":68,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-11T03:52:00.000Z","obsTimeLocal":"2026-11-10T22:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 110352Z 00000KT 10SM CLR 08/06 A3001 RMK AO2 SLP161 T00830056 $","temp":8.3,"dewpoint":5.6,"humidity":83,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-11T04:52:00.000Z","obsTimeLocal":"2026-11-10T23:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 110452Z 00000KT 10SM CLR 09/06 A3001 RMK AO2 SLP161 T00890056 402110028 $","temp":8.9,"dewpoint":5.6,"humidity":80,"wind":0,"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/KIAD/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/KIAD/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for KIAD for the contract date (station-local calendar day), as published at https://weathermarket.io/station/KIAD/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/KIAD/2026-11-10","json":"https://weathermarket.io/api/station/KIAD/2026-11-10","record":"https://weathermarket.io/api/station/KIAD/2026-11-10?format=record","prev":"https://weathermarket.io/station/KIAD/2026-11-09","next":"https://weathermarket.io/station/KIAD/2026-11-11","station":"https://weathermarket.io/station/KIAD","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=IAD&data=metar&year1=2026&month1=11&day1=10&year2=2026&month2=11&day2=12&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=KIAD&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=11&day=10&hora=5&anof=2026&mesf=11&dayf=11&horaf=4&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KIAD"}}}