{"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":"2026-11-03","window":{"date":"2026-11-03","timezone":"America/New_York","dayStartUtc":"2026-11-03T05:00:00.000Z","dayEndUtc":"2026-11-04T05:00:00.000Z","utcOffsetStart":"-05:00","utcOffsetEnd":"-05:00","hours":24},"complete":true,"values":{"tmax":22.8,"tmaxAt":"2026-11-03T18:52:00.000Z","tmin":6.7,"tminAt":"2026-11-03T09:52:00.000Z","tavg":15.1,"humidityMean":72.5,"windMean":2.2,"windMax":4.6,"windMaxAt":"2026-11-03T15:52:00.000Z","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":"2026-11-03T18:52:00.000Z","obsTimeLocal":"2026-11-03T13:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031852Z 17003KT 10SM FEW180 FEW250 23/12 A3022 RMK AO2 SLP234 T02280117","temp":22.8,"dewpoint":11.7,"humidity":50,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-11-03T09:52:00.000Z","obsTimeLocal":"2026-11-03T04:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 030952Z 13003KT 10SM CLR 07/06 A3029 RMK AO2 SLP258 T00670056 $","temp":6.7,"dewpoint":5.6,"humidity":93,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-11-03T15:52:00.000Z","obsTimeLocal":"2026-11-03T10:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031552Z 20009KT 10SM FEW170 SCT250 18/11 A3030 RMK AO2 SLP260 T01830106 $","temp":18.3,"dewpoint":10.6,"humidity":61,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-11-04T08:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"36da2b8bf98a9de3","lastChangedAt":"2026-11-04T04:54:42.166Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KIAD/2026-11-03?format=record","status":"anchored","sha256":"1b12069b3ef5377e572da37e40e7b0853016f3b442b59b080c6142befaf49989","revision":"36da2b8bf98a9de3","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":"2026-11-03T18:52:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-11-03T09:52:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":22.8,"tmin":6.7,"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":23.33,"tmin":6.67,"precip":0,"corrected":false,"issuedAt":"2026-11-04T07:23:00.000Z","html":"https://weathermarket.io/nws-cli/KIAD/2026-11-03","json":"https://weathermarket.io/api/nws-cli/KIAD/2026-11-03"},"observations":[{"obsTimeUtc":"2026-11-03T05:52:00.000Z","obsTimeLocal":"2026-11-03T00:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 030552Z 15003KT 10SM CLR 09/07 A3032 RMK AO2 SLP265 T00940072 10133 20083 56013 $","temp":9.4,"dewpoint":7.2,"humidity":86,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T06:52:00.000Z","obsTimeLocal":"2026-11-03T01:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 030652Z 15003KT 10SM CLR 08/07 A3031 RMK AO2 SLP262 T00830067 $","temp":8.3,"dewpoint":6.7,"humidity":90,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T07:52:00.000Z","obsTimeLocal":"2026-11-03T02:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 030752Z 17003KT 10SM CLR 08/06 A3029 RMK AO2 SLP255 T00830061 $","temp":8.3,"dewpoint":6.1,"humidity":86,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T08:52:00.000Z","obsTimeLocal":"2026-11-03T03:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 030852Z 00000KT 10SM CLR 08/06 A3029 RMK AO2 SLP255 T00830061 56010 $","temp":8.3,"dewpoint":6.1,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T09:52:00.000Z","obsTimeLocal":"2026-11-03T04:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 030952Z 13003KT 10SM CLR 07/06 A3029 RMK AO2 SLP258 T00670056 $","temp":6.7,"dewpoint":5.6,"humidity":93,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T10:52:00.000Z","obsTimeLocal":"2026-11-03T05:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031052Z 00000KT 10SM CLR 07/06 A3031 RMK AO2 SLP262 T00720061 $","temp":7.2,"dewpoint":6.1,"humidity":93,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T11:52:00.000Z","obsTimeLocal":"2026-11-03T06:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031152Z 00000KT 10SM FEW090 SCT250 08/07 A3031 RMK AO2 SLP264 T00830067 10094 20067 52008 $","temp":8.3,"dewpoint":6.7,"humidity":90,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T12:52:00.000Z","obsTimeLocal":"2026-11-03T07:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031252Z 00000KT 10SM FEW090 SCT250 11/08 A3032 RMK AO2 SLP268 T01110078 $","temp":11.1,"dewpoint":7.8,"humidity":80,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T13:52:00.000Z","obsTimeLocal":"2026-11-03T08:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031352Z 20007KT 10SM FEW120 FEW170 SCT250 13/09 A3032 RMK AO2 SLP267 T01330089 $","temp":13.3,"dewpoint":8.9,"humidity":75,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T14:52:00.000Z","obsTimeLocal":"2026-11-03T09:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031452Z 20006KT 10SM FEW110 SCT250 16/09 A3032 RMK AO2 SLP265 T01560094 50002 $","temp":15.6,"dewpoint":9.4,"humidity":67,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T15:52:00.000Z","obsTimeLocal":"2026-11-03T10:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031552Z 20009KT 10SM FEW170 SCT250 18/11 A3030 RMK AO2 SLP260 T01830106 $","temp":18.3,"dewpoint":10.6,"humidity":61,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T16:52:00.000Z","obsTimeLocal":"2026-11-03T11:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031652Z 21007KT 10SM FEW150 SCT250 20/11 A3028 RMK AO2 SLP252 T02000106 $","temp":20,"dewpoint":10.6,"humidity":55,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T17:52:00.000Z","obsTimeLocal":"2026-11-03T12:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031752Z VRB05KT 8SM FEW180 BKN250 22/12 A3025 RMK AO2 SLP241 T02170117 10217 20083 58024 $","temp":21.7,"dewpoint":11.7,"humidity":53,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T18:52:00.000Z","obsTimeLocal":"2026-11-03T13:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031852Z 17003KT 10SM FEW180 FEW250 23/12 A3022 RMK AO2 SLP234 T02280117","temp":22.8,"dewpoint":11.7,"humidity":50,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T19:52:00.000Z","obsTimeLocal":"2026-11-03T14:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 031952Z 14006KT 10SM FEW250 23/12 A3021 RMK AO2 SLP228 T02280117","temp":22.8,"dewpoint":11.7,"humidity":50,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T20:52:00.000Z","obsTimeLocal":"2026-11-03T15:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 032052Z 20006KT 10SM FEW250 23/12 A3020 RMK AO2 SLP226 T02280117 56015","temp":22.8,"dewpoint":11.7,"humidity":50,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T21:52:00.000Z","obsTimeLocal":"2026-11-03T16:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 032152Z 14006KT 10SM FEW250 21/12 A3020 RMK AO2 SLP226 T02060122","temp":20.6,"dewpoint":12.2,"humidity":59,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T22:52:00.000Z","obsTimeLocal":"2026-11-03T17:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 032252Z 15006KT 10SM FEW250 19/12 A3021 RMK AO2 SLP228 T01890122","temp":18.9,"dewpoint":12.2,"humidity":65,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-03T23:52:00.000Z","obsTimeLocal":"2026-11-03T18:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 032352Z 16005KT 10SM CLR 18/12 A3022 RMK AO2 SLP231 T01780117 10233 20178 53005","temp":17.8,"dewpoint":11.7,"humidity":67,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T00:52:00.000Z","obsTimeLocal":"2026-11-03T19:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040052Z 16005KT 10SM CLR 17/12 A3022 RMK AO2 SLP232 T01670117","temp":16.7,"dewpoint":11.7,"humidity":72,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T01:52:00.000Z","obsTimeLocal":"2026-11-03T20:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040152Z 15005KT 10SM CLR 16/12 A3023 RMK AO2 SLP235 T01610117","temp":16.1,"dewpoint":11.7,"humidity":75,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T02:52:00.000Z","obsTimeLocal":"2026-11-03T21:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040252Z 16004KT 10SM CLR 16/12 A3023 RMK AO2 SLP235 T01560117 52004","temp":15.6,"dewpoint":11.7,"humidity":78,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T03:52:00.000Z","obsTimeLocal":"2026-11-03T22:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040352Z 15006KT 10SM CLR 16/12 A3022 RMK AO2 SLP230 T01560117","temp":15.6,"dewpoint":11.7,"humidity":78,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T04:52:00.000Z","obsTimeLocal":"2026-11-03T23:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040452Z 16006KT 10SM CLR 15/12 A3021 RMK AO2 SLP229 T01500117 402330067","temp":15,"dewpoint":11.7,"humidity":81,"wind":3.1,"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). 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/2026-11-03","json":"https://weathermarket.io/api/station/KIAD/2026-11-03","record":"https://weathermarket.io/api/station/KIAD/2026-11-03?format=record","prev":"https://weathermarket.io/station/KIAD/2026-11-02","next":"https://weathermarket.io/station/KIAD/2026-11-04","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=3&year2=2026&month2=11&day2=5&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=3&hora=5&anof=2026&mesf=11&dayf=4&horaf=4&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KIAD"}}}