{"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":"2026-10-24","window":{"date":"2026-10-24","timezone":"America/New_York","dayStartUtc":"2026-10-24T04:00:00.000Z","dayEndUtc":"2026-10-25T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":17.2,"tmaxAt":"2026-10-24T19:52:00.000Z","tmin":2.8,"tminAt":"2026-10-24T08:52:00.000Z","tavg":9.5,"humidityMean":73.3,"windMean":0.9,"windMax":2.6,"windMaxAt":"2026-10-24T15:52:00.000Z","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":"2026-10-24T19:52:00.000Z","obsTimeLocal":"2026-10-24T15:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241952Z VRB03KT 10SM FEW046 17/05 A3050 RMK AO2 SLP329 T01720050 $","temp":17.2,"dewpoint":5,"humidity":45,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-24T08:52:00.000Z","obsTimeLocal":"2026-10-24T04:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 240852Z 00000KT 10SM CLR 03/02 A3048 RMK AO2 SLP323 T00280022 53004 $","temp":2.8,"dewpoint":2.2,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-24T15:52:00.000Z","obsTimeLocal":"2026-10-24T11:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241552Z VRB05KT 10SM FEW037 FEW050 15/04 A3057 RMK AO2 SLP351 T01500044 $","temp":15,"dewpoint":4.4,"humidity":49,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-25T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"81097f4003fafb2e","lastChangedAt":"2026-10-25T03:55:45.410Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KIAD/2026-10-24?format=record","status":"anchored","sha256":"ea0a24d39d6801c3bda4b221a2e688acb7e61464d75e5ec40d81fa13e91c200b","revision":"81097f4003fafb2e","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":"2026-10-24T19:52:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-24T08:52:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":17.2,"tmin":2.8,"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":17.22,"tmin":2.22,"precip":0,"corrected":false,"issuedAt":"2026-10-25T06:26:00.000Z","html":"https://weathermarket.io/nws-cli/KIAD/2026-10-24","json":"https://weathermarket.io/api/nws-cli/KIAD/2026-10-24"},"observations":[{"obsTimeUtc":"2026-10-24T04:52:00.000Z","obsTimeLocal":"2026-10-24T00:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 240452Z 00000KT 10SM CLR 05/03 A3046 RMK AO2 SLP316 T00500033 401780050 $","temp":5,"dewpoint":3.3,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T05:52:00.000Z","obsTimeLocal":"2026-10-24T01:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 240552Z 00000KT 10SM CLR 04/03 A3047 RMK AO2 SLP318 T00440033 10122 20044 52008 $","temp":4.4,"dewpoint":3.3,"humidity":93,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T06:52:00.000Z","obsTimeLocal":"2026-10-24T02:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 240652Z 00000KT 10SM CLR 04/03 A3047 RMK AO2 SLP319 T00440033 $","temp":4.4,"dewpoint":3.3,"humidity":93,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T07:52:00.000Z","obsTimeLocal":"2026-10-24T03:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 240752Z 00000KT 10SM CLR 03/03 A3047 RMK AO2 SLP320 T00330028 $","temp":3.3,"dewpoint":2.8,"humidity":97,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T08:52:00.000Z","obsTimeLocal":"2026-10-24T04:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 240852Z 00000KT 10SM CLR 03/02 A3048 RMK AO2 SLP323 T00280022 53004 $","temp":2.8,"dewpoint":2.2,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T09:52:00.000Z","obsTimeLocal":"2026-10-24T05:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 240952Z 00000KT 10SM CLR 03/03 A3050 RMK AO2 SLP327 T00330028 $","temp":3.3,"dewpoint":2.8,"humidity":97,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T10:52:00.000Z","obsTimeLocal":"2026-10-24T06:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241052Z 00000KT 10SM FEW050 04/03 A3051 RMK AO2 SLP332 T00440033 $","temp":4.4,"dewpoint":3.3,"humidity":93,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T11:52:00.000Z","obsTimeLocal":"2026-10-24T07:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241152Z 00000KT 10SM FEW050 FEW250 03/03 A3053 RMK AO2 SLP339 T00280028 10044 20022 53015 $","temp":2.8,"dewpoint":2.8,"humidity":100,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T12:52:00.000Z","obsTimeLocal":"2026-10-24T08:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241252Z 00000KT 9SM FEW050 07/05 A3054 RMK AO2 SLP344 T00720050 $","temp":7.2,"dewpoint":5,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T13:52:00.000Z","obsTimeLocal":"2026-10-24T09:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241352Z 33003KT 10SM FEW050 10/06 A3056 RMK AO2 SLP350 T01000061 $","temp":10,"dewpoint":6.1,"humidity":77,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T14:52:00.000Z","obsTimeLocal":"2026-10-24T10:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241452Z VRB04KT 10SM FEW050 13/05 A3057 RMK AO2 SLP351 T01280050 51014 $","temp":12.8,"dewpoint":5,"humidity":59,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T15:52:00.000Z","obsTimeLocal":"2026-10-24T11:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241552Z VRB05KT 10SM FEW037 FEW050 15/04 A3057 RMK AO2 SLP351 T01500044 $","temp":15,"dewpoint":4.4,"humidity":49,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T16:52:00.000Z","obsTimeLocal":"2026-10-24T12:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241652Z VRB03KT 10SM FEW044 16/04 A3055 RMK AO2 SLP346 T01560044 $","temp":15.6,"dewpoint":4.4,"humidity":47,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T17:52:00.000Z","obsTimeLocal":"2026-10-24T13:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241752Z 10003KT 10SM FEW046 16/04 A3053 RMK AO2 SLP338 T01610044 10172 20028 58014 $","temp":16.1,"dewpoint":4.4,"humidity":46,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T18:52:00.000Z","obsTimeLocal":"2026-10-24T14:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241852Z 00000KT 10SM FEW046 17/04 A3051 RMK AO2 SLP331 T01670039 $","temp":16.7,"dewpoint":3.9,"humidity":43,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T19:52:00.000Z","obsTimeLocal":"2026-10-24T15:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 241952Z VRB03KT 10SM FEW046 17/05 A3050 RMK AO2 SLP329 T01720050 $","temp":17.2,"dewpoint":5,"humidity":45,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T20:52:00.000Z","obsTimeLocal":"2026-10-24T16:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 242052Z 15005KT 10SM FEW050 17/05 A3050 RMK AO2 SLP327 T01670050 56010 $","temp":16.7,"dewpoint":5,"humidity":46,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T21:52:00.000Z","obsTimeLocal":"2026-10-24T17:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 242152Z 12003KT 10SM FEW050 15/04 A3050 RMK AO2 SLP328 T01500044 $","temp":15,"dewpoint":4.4,"humidity":49,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T22:52:00.000Z","obsTimeLocal":"2026-10-24T18:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 242252Z 14004KT 10SM FEW050 11/06 A3051 RMK AO2 SLP334 T01110056 $","temp":11.1,"dewpoint":5.6,"humidity":69,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-24T23:52:00.000Z","obsTimeLocal":"2026-10-24T19:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 242352Z 13004KT 10SM FEW050 12/05 A3054 RMK AO2 SLP342 T01170050 10172 20111 53013 $","temp":11.7,"dewpoint":5,"humidity":63,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-25T00:52:00.000Z","obsTimeLocal":"2026-10-24T20:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 250052Z 13003KT 10SM FEW050 11/05 A3054 RMK AO2 SLP343 T01060050 $","temp":10.6,"dewpoint":5,"humidity":68,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-25T01:52:00.000Z","obsTimeLocal":"2026-10-24T21:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 250152Z 13004KT 10SM FEW050 09/06 A3055 RMK AO2 SLP345 T00940056 $","temp":9.4,"dewpoint":5.6,"humidity":77,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-25T02:52:00.000Z","obsTimeLocal":"2026-10-24T22:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 250252Z 00000KT 10SM FEW050 07/04 A3054 RMK AO2 SLP344 T00670044 50003 $","temp":6.7,"dewpoint":4.4,"humidity":85,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-25T03:52:00.000Z","obsTimeLocal":"2026-10-24T23:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 250352Z 00000KT 10SM FEW050 06/04 A3055 RMK AO2 SLP345 T00560044 $","temp":5.6,"dewpoint":4.4,"humidity":92,"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/2026-10-24","json":"https://weathermarket.io/api/station/KIAD/2026-10-24","record":"https://weathermarket.io/api/station/KIAD/2026-10-24?format=record","prev":"https://weathermarket.io/station/KIAD/2026-10-23","next":"https://weathermarket.io/station/KIAD/2026-10-25","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=10&day1=24&year2=2026&month2=10&day2=26&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=10&day=24&hora=4&anof=2026&mesf=10&dayf=25&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KIAD"}}}