{"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":"2026-10-06","window":{"date":"2026-10-06","timezone":"America/New_York","dayStartUtc":"2026-10-06T04:00:00.000Z","dayEndUtc":"2026-10-07T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":18.3,"tmaxAt":"2026-10-06T20:52:00.000Z","tmin":7.8,"tminAt":"2026-10-07T01:52:00.000Z","tavg":12.6,"humidityMean":57.6,"windMean":1.6,"windMax":3.6,"windMaxAt":"2026-10-06T06:52:00.000Z","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":"2026-10-06T20:52:00.000Z","obsTimeLocal":"2026-10-06T16:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 062052Z 23004KT 10SM CLR 18/03 A3011 RMK AO2 SLP196 T01830028 56023","temp":18.3,"dewpoint":2.8,"humidity":36,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-07T01:52:00.000Z","obsTimeLocal":"2026-10-06T21:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 070152Z 00000KT 10SM CLR 08/06 A3011 RMK AO2 SLP197 T00780056","temp":7.8,"dewpoint":5.6,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-06T06:52:00.000Z","obsTimeLocal":"2026-10-06T02:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 060652Z 32007KT 10SM CLR 12/04 A3018 RMK AO2 SLP219 T01170039","temp":11.7,"dewpoint":3.9,"humidity":59,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-07T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"a12045fbe44d9b49","lastChangedAt":"2026-10-07T03:54:39.335Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KIAD/2026-10-06?format=record","status":"anchored","sha256":"42d8d6a96f7825ab1e29ab7c5a4dd1f3fa4d52ef1bbdf26df76988e04d3e77d8","revision":"a12045fbe44d9b49","flareTxHash":"0x6c62dfe5c16310655fc15e0885921b3bd331ced2cc1a12ebeb3c9b7ddc2c337b","flareBlock":71518639,"anchoredAt":"2026-10-07T07:01:54.115Z","explorer":"https://flare-explorer.flare.network/tx/0x6c62dfe5c16310655fc15e0885921b3bd331ced2cc1a12ebeb3c9b7ddc2c337b","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":"2026-10-06T20:52:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-07T01:52:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":18.3,"tmin":7.8,"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":18.33,"tmin":6.67,"precip":0,"corrected":false,"issuedAt":"2026-10-07T06:35:00.000Z","html":"https://weathermarket.io/nws-cli/KIAD/2026-10-06","json":"https://weathermarket.io/api/nws-cli/KIAD/2026-10-06"},"observations":[{"obsTimeUtc":"2026-10-06T04:52:00.000Z","obsTimeLocal":"2026-10-06T00:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 060452Z 33006KT 10SM CLR 14/03 A3017 RMK AO2 SLP215 T01390033 402330139","temp":13.9,"dewpoint":3.3,"humidity":49,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T05:52:00.000Z","obsTimeLocal":"2026-10-06T01:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 060552Z 33006KT 10SM CLR 13/03 A3018 RMK AO2 SLP217 T01280033 10178 20128 53009","temp":12.8,"dewpoint":3.3,"humidity":52,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T06:52:00.000Z","obsTimeLocal":"2026-10-06T02:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 060652Z 32007KT 10SM CLR 12/04 A3018 RMK AO2 SLP219 T01170039","temp":11.7,"dewpoint":3.9,"humidity":59,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T07:52:00.000Z","obsTimeLocal":"2026-10-06T03:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 060752Z 33005KT 10SM CLR 11/04 A3018 RMK AO2 SLP220 T01060039","temp":10.6,"dewpoint":3.9,"humidity":63,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T08:52:00.000Z","obsTimeLocal":"2026-10-06T04:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 060852Z 00000KT 10SM CLR 09/04 A3019 RMK AO2 SLP221 T00890039 51002","temp":8.9,"dewpoint":3.9,"humidity":71,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T09:52:00.000Z","obsTimeLocal":"2026-10-06T05:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 060952Z 31004KT 10SM CLR 09/04 A3020 RMK AO2 SLP226 T00890039","temp":8.9,"dewpoint":3.9,"humidity":71,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T10:52:00.000Z","obsTimeLocal":"2026-10-06T06:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061052Z 29004KT 10SM CLR 09/04 A3022 RMK AO2 SLP231 T00890039","temp":8.9,"dewpoint":3.9,"humidity":71,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T11:52:00.000Z","obsTimeLocal":"2026-10-06T07:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061152Z 00000KT 10SM CLR 08/04 A3024 RMK AO2 SLP238 T00830039 10128 20072 53017","temp":8.3,"dewpoint":3.9,"humidity":74,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T12:52:00.000Z","obsTimeLocal":"2026-10-06T08:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061252Z 30004KT 10SM CLR 11/04 A3025 RMK AO2 SLP241 T01110039","temp":11.1,"dewpoint":3.9,"humidity":61,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T13:52:00.000Z","obsTimeLocal":"2026-10-06T09:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061352Z 32006KT 10SM CLR 13/03 A3025 RMK AO2 SLP244 T01330033","temp":13.3,"dewpoint":3.3,"humidity":51,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T14:52:00.000Z","obsTimeLocal":"2026-10-06T10:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061452Z 36005KT 10SM CLR 15/02 A3026 RMK AO2 SLP245 T01500017 51007","temp":15,"dewpoint":1.7,"humidity":41,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T15:52:00.000Z","obsTimeLocal":"2026-10-06T11:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061552Z VRB04KT 10SM CLR 16/02 A3024 RMK AO2 SLP239 T01560022","temp":15.6,"dewpoint":2.2,"humidity":40,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T16:52:00.000Z","obsTimeLocal":"2026-10-06T12:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061652Z VRB04KT 10SM CLR 16/02 A3021 RMK AO2 SLP230 T01610022","temp":16.1,"dewpoint":2.2,"humidity":39,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T17:52:00.000Z","obsTimeLocal":"2026-10-06T13:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061752Z 00000KT 10SM CLR 17/03 A3018 RMK AO2 SLP220 T01720028 10172 20083 58024","temp":17.2,"dewpoint":2.8,"humidity":38,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T18:52:00.000Z","obsTimeLocal":"2026-10-06T14:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061852Z 35006KT 9SM CLR 17/01 A3015 RMK AO2 SLP209 T01720011","temp":17.2,"dewpoint":1.1,"humidity":34,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T19:52:00.000Z","obsTimeLocal":"2026-10-06T15:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 061952Z 29006KT 10SM CLR 18/03 A3013 RMK AO2 SLP201 T01780028","temp":17.8,"dewpoint":2.8,"humidity":37,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T20:52:00.000Z","obsTimeLocal":"2026-10-06T16:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 062052Z 23004KT 10SM CLR 18/03 A3011 RMK AO2 SLP196 T01830028 56023","temp":18.3,"dewpoint":2.8,"humidity":36,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T21:52:00.000Z","obsTimeLocal":"2026-10-06T17:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 062152Z 21003KT 10SM CLR 17/03 A3010 RMK AO2 SLP193 T01720028","temp":17.2,"dewpoint":2.8,"humidity":38,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T22:52:00.000Z","obsTimeLocal":"2026-10-06T18:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 062252Z 00000KT 10SM CLR 14/06 A3010 RMK AO2 SLP192 T01390061","temp":13.9,"dewpoint":6.1,"humidity":59,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-06T23:52:00.000Z","obsTimeLocal":"2026-10-06T19:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 062352Z 00000KT 10SM CLR 12/05 A3010 RMK AO2 SLP193 T01170050 10183 20100 55004","temp":11.7,"dewpoint":5,"humidity":63,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-07T00:52:00.000Z","obsTimeLocal":"2026-10-06T20:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 070052Z 00000KT 10SM CLR 10/06 A3011 RMK AO2 SLP196 T01000056","temp":10,"dewpoint":5.6,"humidity":74,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-07T01:52:00.000Z","obsTimeLocal":"2026-10-06T21:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 070152Z 00000KT 10SM CLR 08/06 A3011 RMK AO2 SLP197 T00780056","temp":7.8,"dewpoint":5.6,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-07T02:52:00.000Z","obsTimeLocal":"2026-10-06T22:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 070252Z 00000KT 10SM CLR 08/06 A3011 RMK AO2 SLP197 T00830061 50003 $","temp":8.3,"dewpoint":6.1,"humidity":86,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-07T03:52:00.000Z","obsTimeLocal":"2026-10-06T23:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 070352Z 00000KT 10SM CLR 08/06 A3011 RMK AO2 SLP197 T00780061 $","temp":7.8,"dewpoint":6.1,"humidity":89,"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/2026-10-06","json":"https://weathermarket.io/api/station/KIAD/2026-10-06","record":"https://weathermarket.io/api/station/KIAD/2026-10-06?format=record","prev":"https://weathermarket.io/station/KIAD/2026-10-05","next":"https://weathermarket.io/station/KIAD/2026-10-07","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=6&year2=2026&month2=10&day2=8&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=6&hora=4&anof=2026&mesf=10&dayf=7&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KIAD"}}}