{"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":"2026-11-12","window":{"date":"2026-11-12","timezone":"America/New_York","dayStartUtc":"2026-11-12T05:00:00.000Z","dayEndUtc":"2026-11-13T05:00:00.000Z","utcOffsetStart":"-05:00","utcOffsetEnd":"-05:00","hours":24},"complete":true,"values":{"tmax":17.8,"tmaxAt":"2026-11-12T18:52:00.000Z","tmin":6.7,"tminAt":"2026-11-12T09:52:00.000Z","tavg":11.8,"humidityMean":81.5,"windMean":2.5,"windMax":7.2,"windMaxAt":"2026-11-13T02:52:00.000Z","precipObservedCount":3,"nObservations":34,"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":"2026-11-12T18:52:00.000Z","obsTimeLocal":"2026-11-12T13:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121852Z 30006KT 7SM FEW033 BKN085 BKN130 18/08 A2941 RMK AO2 SLP957 T01780083","temp":17.8,"dewpoint":8.3,"humidity":54,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-11-12T09:52:00.000Z","obsTimeLocal":"2026-11-12T04:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 120952Z 00000KT 1 1/2SM R01R/5000VP6000FT BR SCT001 07/06 A2958 RMK AO2 SFC VIS 5 SLP015 T00670061 $","temp":6.7,"dewpoint":6.1,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-11-13T02:52:00.000Z","obsTimeLocal":"2026-11-12T21:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 130252Z 34014G18KT 10SM BKN035 OVC041 12/06 A2951 RMK AO2 SLP992 T01170056 53006","temp":11.7,"dewpoint":5.6,"humidity":66,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-11-13T08:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"45830b08eb48c03c","lastChangedAt":"2026-11-13T04:55:19.939Z","corrections":[{"obsTimeUtc":"2026-11-12T07:52:00.000Z","correctedAt":"2026-11-12T07:58:38.252Z","original":"METAR KIAD 120752Z 10SM CLR 09/08 A2962 RMK AO2 SLP027 T00940083 $","corrected":"METAR KIAD 120752Z COR 00000KT 10SM CLR 09/08 A2962 RMK AO2 SLP027 T00940083 $"}],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KIAD/2026-11-12?format=record","status":"anchored","sha256":"71ed210c5ae302f370d744107fca993555396c482348a0168bf8694ac7f31307","revision":"45830b08eb48c03c","flareTxHash":"0x988acb19e49ad21ccbc4d0ddd54999f4331ccd7b2bfe2aa11cce14dd999916a3","flareBlock":74422149,"anchoredAt":"2026-11-13T08:01:20.629Z","explorer":"https://flare-explorer.flare.network/tx/0x988acb19e49ad21ccbc4d0ddd54999f4331ccd7b2bfe2aa11cce14dd999916a3","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":34,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-11-12T18:52:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-11-12T09:52:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":17.8,"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":17.78,"tmin":6.67,"precip":0.51,"corrected":false,"issuedAt":"2026-11-13T07:22:00.000Z","html":"https://weathermarket.io/nws-cli/KIAD/2026-11-12","json":"https://weathermarket.io/api/nws-cli/KIAD/2026-11-12"},"observations":[{"obsTimeUtc":"2026-11-12T05:52:00.000Z","obsTimeLocal":"2026-11-12T00:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 120552Z 14003KT 10SM FEW075 BKN200 11/08 A2968 RMK AO2 SLP048 T01060083 10161 20094 58019 $","temp":10.6,"dewpoint":8.3,"humidity":86,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T06:52:00.000Z","obsTimeLocal":"2026-11-12T01:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 120652Z 10005KT 10SM CLR 10/08 A2964 RMK AO2 SLP035 T01000083 $","temp":10,"dewpoint":8.3,"humidity":89,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T07:52:00.000Z","obsTimeLocal":"2026-11-12T02:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 120752Z COR 00000KT 10SM CLR 09/08 A2962 RMK AO2 SLP027 T00940083 $","temp":9.4,"dewpoint":8.3,"humidity":93,"wind":0,"precipObserved":false,"correctedAt":"2026-11-12T07:58:38.252Z","originalRaw":"METAR KIAD 120752Z 10SM CLR 09/08 A2962 RMK AO2 SLP027 T00940083 $"},{"obsTimeUtc":"2026-11-12T08:52:00.000Z","obsTimeLocal":"2026-11-12T03:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 120852Z 00000KT 8SM CLR 08/07 A2959 RMK AO2 SLP017 T00780072 56030 $","temp":7.8,"dewpoint":7.2,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T09:43:00.000Z","obsTimeLocal":"2026-11-12T04:43:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 120943Z 00000KT 1 1/2SM SCT003 07/07 A2958 RMK AO2 SFC VIS 7 T00720067 $","temp":7.2,"dewpoint":6.7,"humidity":97,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T09:52:00.000Z","obsTimeLocal":"2026-11-12T04:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 120952Z 00000KT 1 1/2SM R01R/5000VP6000FT BR SCT001 07/06 A2958 RMK AO2 SFC VIS 5 SLP015 T00670061 $","temp":6.7,"dewpoint":6.1,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T09:59:00.000Z","obsTimeLocal":"2026-11-12T04:59:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 120959Z 07003KT 1 1/2SM R01R/2000VP6000FT BR OVC001 07/07 A2957 RMK AO2 SFC VIS 3 T00670067 $","temp":6.7,"dewpoint":6.7,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T10:23:00.000Z","obsTimeLocal":"2026-11-12T05:23:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 121023Z 08003KT 1/8SM R01R/1600V1800FT FG VV001 10/10 A2955 RMK AO2 T01000100 $","temp":10,"dewpoint":10,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T10:50:00.000Z","obsTimeLocal":"2026-11-12T05:50:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 121050Z 00000KT 1/8SM R01R/1400V1600FT FG VV002 10/10 A2956 RMK AO2 $","temp":10,"dewpoint":10,"humidity":100,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T10:52:00.000Z","obsTimeLocal":"2026-11-12T05:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121052Z 00000KT 1/8SM R01R/1400V1600FT FG VV002 10/10 A2956 RMK AO2 SLP007 T01000100 $","temp":10,"dewpoint":10,"humidity":100,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T11:52:00.000Z","obsTimeLocal":"2026-11-12T06:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121152Z 10003KT 1/8SM R01R/2800V4000FT FG VV002 11/11 A2953 RMK AO2 SLP997 T01060106 10106 20067 58016 $","temp":10.6,"dewpoint":10.6,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T12:43:00.000Z","obsTimeLocal":"2026-11-12T07:43:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 121243Z 00000KT 1/4SM R01R/P6000FT FG BKN004 OVC030 10/10 A2952 RMK AO2 T01000100","temp":10,"dewpoint":10,"humidity":100,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T12:52:00.000Z","obsTimeLocal":"2026-11-12T07:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121252Z 00000KT 1/2SM R01R/P6000FT FG BKN004 BKN030 OVC140 10/10 A2953 RMK AO2 SLP997 T01000100","temp":10,"dewpoint":10,"humidity":100,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T13:02:00.000Z","obsTimeLocal":"2026-11-12T08:02:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 121302Z 29005KT 1SM R01R/P6000FT BR BKN004 BKN060 OVC140 11/10 A2953 RMK AO2 T01060100","temp":10.6,"dewpoint":10,"humidity":96,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T13:30:00.000Z","obsTimeLocal":"2026-11-12T08:30:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 121330Z 27003KT 1 1/2SM BR BKN004 OVC030 11/11 A2953 RMK AO2 T01060106","temp":10.6,"dewpoint":10.6,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T13:52:00.000Z","obsTimeLocal":"2026-11-12T08:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121352Z 27006KT 1 1/2SM -RA BR BKN004 OVC030 11/10 A2954 RMK AO2 LTG DSNT N RAB39 SLP001 P0000 T01060100","temp":10.6,"dewpoint":10,"humidity":96,"wind":3.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T14:52:00.000Z","obsTimeLocal":"2026-11-12T09:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121452Z 09003KT 3SM BR BKN004 OVC033 11/11 A2949 RMK AO2 RAE42 SLP986 P0001 60001 T01110111 58011","temp":11.1,"dewpoint":11.1,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T15:52:00.000Z","obsTimeLocal":"2026-11-12T10:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121552Z 27004KT 4SM BR OVC007 13/11 A2949 RMK AO2 SLP983 T01280111","temp":12.8,"dewpoint":11.1,"humidity":89,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T16:33:00.000Z","obsTimeLocal":"2026-11-12T11:33:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 121633Z 30003KT 6SM HZ SCT008 BKN060 14/11 A2947 RMK AO2 T01440111","temp":14.4,"dewpoint":11.1,"humidity":81,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T16:52:00.000Z","obsTimeLocal":"2026-11-12T11:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121652Z 31003KT 6SM HZ SCT010 BKN060 BKN150 14/11 A2946 RMK AO2 SLP975 T01440106","temp":14.4,"dewpoint":10.6,"humidity":78,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T17:52:00.000Z","obsTimeLocal":"2026-11-12T12:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121752Z VRB03KT 10SM FEW035 SCT070 BKN120 16/09 A2943 RMK AO2 SLP963 60001 T01610094 10161 20100 58022","temp":16.1,"dewpoint":9.4,"humidity":64,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T18:37:00.000Z","obsTimeLocal":"2026-11-12T13:37:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 121837Z 30005KT 7SM FEW033 SCT070 BKN130 17/09 A2941 RMK AO2 T01720089","temp":17.2,"dewpoint":8.9,"humidity":58,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T18:52:00.000Z","obsTimeLocal":"2026-11-12T13:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121852Z 30006KT 7SM FEW033 BKN085 BKN130 18/08 A2941 RMK AO2 SLP957 T01780083","temp":17.8,"dewpoint":8.3,"humidity":54,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T19:52:00.000Z","obsTimeLocal":"2026-11-12T14:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 121952Z VRB03KT 10SM FEW040 BKN060 BKN130 18/08 A2940 RMK AO2 SLP955 T01780083","temp":17.8,"dewpoint":8.3,"humidity":54,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T20:52:00.000Z","obsTimeLocal":"2026-11-12T15:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 122052Z 27008KT 10SM -RA SCT055 BKN070 BKN120 17/08 A2941 RMK AO2 RAB49 SLP960 P0000 60000 T01670078 55005","temp":16.7,"dewpoint":7.8,"humidity":56,"wind":4.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T21:27:00.000Z","obsTimeLocal":"2026-11-12T16:27:00-05:00","metarType":"SPECI","raw":"SPECI KIAD 122127Z 31011G21KT 10SM SCT055 BKN070 BKN120 15/09 A2943 RMK AO2 WSHFT 2107 RAE24 P0001 T01500089","temp":15,"dewpoint":8.9,"humidity":67,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T21:52:00.000Z","obsTimeLocal":"2026-11-12T16:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 122152Z 30011G25KT 8SM -RA BKN048 BKN060 OVC120 13/08 A2945 RMK AO2 WSHFT 2107 RAE24B40 SLP972 P0001 T01330083","temp":13.3,"dewpoint":8.3,"humidity":72,"wind":5.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T22:52:00.000Z","obsTimeLocal":"2026-11-12T17:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 122252Z 30011G21KT 10SM FEW048 BKN100 BKN120 13/06 A2947 RMK AO2 RAE03 SLP978 P0000 T01330061","temp":13.3,"dewpoint":6.1,"humidity":62,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-12T23:52:00.000Z","obsTimeLocal":"2026-11-12T18:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 122352Z 29012G20KT 10SM FEW043 BKN050 BKN110 13/06 A2949 RMK AO2 PK WND 29029/2328 SLP986 60001 T01280056 10178 20128 51026","temp":12.8,"dewpoint":5.6,"humidity":62,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-13T00:52:00.000Z","obsTimeLocal":"2026-11-12T19:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 130052Z 29011KT 10SM FEW048 BKN060 12/06 A2949 RMK AO2 SLP987 T01220056","temp":12.2,"dewpoint":5.6,"humidity":64,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-13T01:52:00.000Z","obsTimeLocal":"2026-11-12T20:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 130152Z 31006G19KT 10SM BKN043 BKN060 12/06 A2950 RMK AO2 SLP987 T01170056","temp":11.7,"dewpoint":5.6,"humidity":66,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-13T02:52:00.000Z","obsTimeLocal":"2026-11-12T21:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 130252Z 34014G18KT 10SM BKN035 OVC041 12/06 A2951 RMK AO2 SLP992 T01170056 53006","temp":11.7,"dewpoint":5.6,"humidity":66,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-13T03:52:00.000Z","obsTimeLocal":"2026-11-12T22:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 130352Z 34013G22KT 10SM BKN034 BKN045 11/04 A2951 RMK AO2 SLP994 T01110039","temp":11.1,"dewpoint":3.9,"humidity":61,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-11-13T04:52:00.000Z","obsTimeLocal":"2026-11-12T23:52:00-05:00","metarType":"METAR","raw":"METAR KIAD 130452Z 32010KT 10SM SCT055 09/04 A2953 RMK AO2 SLP998 T00940039 401780067","temp":9.4,"dewpoint":3.9,"humidity":69,"wind":5.1,"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/2026-11-12","json":"https://weathermarket.io/api/station/KIAD/2026-11-12","record":"https://weathermarket.io/api/station/KIAD/2026-11-12?format=record","prev":"https://weathermarket.io/station/KIAD/2026-11-11","next":"https://weathermarket.io/station/KIAD/2026-11-13","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=12&year2=2026&month2=11&day2=14&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=12&hora=5&anof=2026&mesf=11&dayf=13&horaf=4&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KIAD"}}}