{"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":"2026-11-04","window":{"date":"2026-11-04","timezone":"America/New_York","dayStartUtc":"2026-11-04T05:00:00.000Z","dayEndUtc":"2026-11-05T05:00:00.000Z","utcOffsetStart":"-05:00","utcOffsetEnd":"-05:00","hours":24},"complete":true,"values":{"tmax":24.4,"tmaxAt":"2026-11-04T17:52:00.000Z","tmin":10,"tminAt":"2026-11-04T08:52:00.000Z","tavg":18,"humidityMean":77,"windMean":3.1,"windMax":5.7,"windMaxAt":"2026-11-04T18:52:00.000Z","precipObservedCount":1,"nObservations":25,"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":"2026-11-04T17:52:00.000Z","obsTimeLocal":"2026-11-04T12:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041752Z 19010KT 10SM FEW080 SCT250 24/13 A3008 RMK AO2 SLP183 T02440133 10244 20122 58024 $","temp":24.4,"dewpoint":13.3,"humidity":50,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-11-04T08:52:00.000Z","obsTimeLocal":"2026-11-04T03:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040852Z 00000KT 10SM CLR 10/09 A3016 RMK AO2 SLP213 T01000094 58015","temp":10,"dewpoint":9.4,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-11-04T18:52:00.000Z","obsTimeLocal":"2026-11-04T13:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041852Z AUTO 17011G20KT 10SM FEW080 SCT250 24/11 A3006 RMK AO2 SLP177 T02440106","temp":24.4,"dewpoint":10.6,"humidity":42,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-11-05T08:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"3c5eca15e6cdfc71","lastChangedAt":"2026-11-05T04:55:14.728Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KIAD/2026-11-04?format=record","status":"anchored","sha256":"0ba134c6ae4ef7cca750c12884040b532c3f29baafd50eb87c119d8a052b5669","revision":"3c5eca15e6cdfc71","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":25,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-11-04T17:52:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-11-04T08:52:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":24.4,"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":{"status":"issued","tmax":25,"tmin":10,"precip":0,"corrected":false,"issuedAt":"2026-11-05T07:23:00.000Z","html":"https://weathermarket.io/nws-cli/KIAD/2026-11-04","json":"https://weathermarket.io/api/nws-cli/KIAD/2026-11-04"},"observations":[{"obsTimeUtc":"2026-11-04T05:52:00.000Z","obsTimeLocal":"2026-11-04T00:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040552Z 16005KT 10SM CLR 15/12 A3021 RMK AO2 SLP227 T01500117 10178 20150 56007","temp":15,"dewpoint":11.7,"humidity":81,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T06:52:00.000Z","obsTimeLocal":"2026-11-04T01:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040652Z 18004KT 10SM CLR 14/12 A3019 RMK AO2 SLP223 T01390117","temp":13.9,"dewpoint":11.7,"humidity":87,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T07:52:00.000Z","obsTimeLocal":"2026-11-04T02:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040752Z 00000KT 10SM CLR 12/11 A3017 RMK AO2 SLP216 T01170111","temp":11.7,"dewpoint":11.1,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T08:52:00.000Z","obsTimeLocal":"2026-11-04T03:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040852Z 00000KT 10SM CLR 10/09 A3016 RMK AO2 SLP213 T01000094 58015","temp":10,"dewpoint":9.4,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T09:52:00.000Z","obsTimeLocal":"2026-11-04T04:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 040952Z 17004KT 10SM CLR 11/11 A3016 RMK AO2 SLP213 T01110106","temp":11.1,"dewpoint":10.6,"humidity":97,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T10:52:00.000Z","obsTimeLocal":"2026-11-04T05:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041052Z 17004KT 10SM CLR 11/11 A3016 RMK AO2 SLP211 T01110106","temp":11.1,"dewpoint":10.6,"humidity":97,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T11:52:00.000Z","obsTimeLocal":"2026-11-04T06:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041152Z 00000KT 10SM FEW080 FEW250 12/11 A3016 RMK AO2 SLP212 T01220111 10150 20100 55001","temp":12.2,"dewpoint":11.1,"humidity":93,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T12:52:00.000Z","obsTimeLocal":"2026-11-04T07:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041252Z 00000KT 10SM FEW120 SCT250 14/12 A3017 RMK AO2 SLP215 T01390122","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T13:52:00.000Z","obsTimeLocal":"2026-11-04T08:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041352Z 20009KT 10SM FEW120 SCT250 16/13 A3016 RMK AO2 SLP214 T01610133","temp":16.1,"dewpoint":13.3,"humidity":83,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T14:52:00.000Z","obsTimeLocal":"2026-11-04T09:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041452Z 20007KT 160V220 10SM FEW120 SCT250 20/14 A3015 RMK AO2 SLP207 T02000139 58004 $","temp":20,"dewpoint":13.9,"humidity":68,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T15:52:00.000Z","obsTimeLocal":"2026-11-04T10:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041552Z 18008G17KT 10SM FEW080 SCT250 22/14 A3013 RMK AO2 SLP201 T02170144 $","temp":21.7,"dewpoint":14.4,"humidity":63,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T16:52:00.000Z","obsTimeLocal":"2026-11-04T11:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041652Z 17009G18KT 10SM FEW100 SCT250 23/14 A3010 RMK AO2 SLP192 T02280139 $","temp":22.8,"dewpoint":13.9,"humidity":57,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T17:52:00.000Z","obsTimeLocal":"2026-11-04T12:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041752Z 19010KT 10SM FEW080 SCT250 24/13 A3008 RMK AO2 SLP183 T02440133 10244 20122 58024 $","temp":24.4,"dewpoint":13.3,"humidity":50,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T18:52:00.000Z","obsTimeLocal":"2026-11-04T13:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041852Z AUTO 17011G20KT 10SM FEW080 SCT250 24/11 A3006 RMK AO2 SLP177 T02440106","temp":24.4,"dewpoint":10.6,"humidity":42,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T19:52:00.000Z","obsTimeLocal":"2026-11-04T14:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 041952Z 19011KT 10SM FEW080 SCT250 24/11 A3004 RMK AO2 SLP170 T02390111","temp":23.9,"dewpoint":11.1,"humidity":45,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T20:52:00.000Z","obsTimeLocal":"2026-11-04T15:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 042052Z 14010G17KT 10SM FEW080 FEW150 BKN250 23/14 A3003 RMK AO2 SLP167 T02280139 56017","temp":22.8,"dewpoint":13.9,"humidity":57,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T21:52:00.000Z","obsTimeLocal":"2026-11-04T16:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 042152Z 16006KT 10SM FEW050 SCT120 BKN250 21/14 A3002 RMK AO2 SLP166 T02110144","temp":21.1,"dewpoint":14.4,"humidity":66,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T22:52:00.000Z","obsTimeLocal":"2026-11-04T17:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 042252Z 16007KT 10SM SCT120 BKN160 BKN250 20/15 A3004 RMK AO2 SLP170 T02000150","temp":20,"dewpoint":15,"humidity":73,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-04T23:52:00.000Z","obsTimeLocal":"2026-11-04T18:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 042352Z 15006KT 10SM FEW120 BKN160 BKN250 19/16 A3002 RMK AO2 SLP165 T01940156 10250 20194 58001","temp":19.4,"dewpoint":15.6,"humidity":79,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-05T00:52:00.000Z","obsTimeLocal":"2026-11-04T19:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 050052Z 16007KT 10SM FEW050 FEW120 BKN150 BKN250 19/16 A3001 RMK AO2 SLP160 T01890161","temp":18.9,"dewpoint":16.1,"humidity":84,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-05T01:52:00.000Z","obsTimeLocal":"2026-11-04T20:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 050152Z 15006KT 10SM FEW120 BKN150 BKN250 19/16 A3000 RMK AO2 SLP157 T01890161","temp":18.9,"dewpoint":16.1,"humidity":84,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-05T02:52:00.000Z","obsTimeLocal":"2026-11-04T21:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 050252Z 17006KT 10SM SCT120 BKN150 OVC250 19/16 A2999 RMK AO2 SLP154 T01890161 56010","temp":18.9,"dewpoint":16.1,"humidity":84,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-05T03:09:00.000Z","obsTimeLocal":"2026-11-04T22:09:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 050309Z 16007KT 10SM BKN025 OVC120 19/16 A2999 RMK AO2 T01890161","temp":18.9,"dewpoint":16.1,"humidity":84,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-05T03:52:00.000Z","obsTimeLocal":"2026-11-04T22:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 050352Z 17005KT 10SM SCT025 OVC110 19/16 A2998 RMK AO2 SLP150 T01890161","temp":18.9,"dewpoint":16.1,"humidity":84,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-05T04:52:00.000Z","obsTimeLocal":"2026-11-04T23:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 050452Z 17006KT 8SM -RA BKN031 OVC110 19/17 A2997 RMK AO2 RAB46 SLP148 P0000 T01890167 402500100","temp":18.9,"dewpoint":16.7,"humidity":87,"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). 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/2026-11-04","json":"https://weathermarket.io/api/station/KIAD/2026-11-04","record":"https://weathermarket.io/api/station/KIAD/2026-11-04?format=record","prev":"https://weathermarket.io/station/KIAD/2026-11-03","next":"https://weathermarket.io/station/KIAD/2026-11-05","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=4&year2=2026&month2=11&day2=6&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=4&hora=5&anof=2026&mesf=11&dayf=5&horaf=4&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KIAD"}}}