{"station":{"icao":"KSEA","city":{"slug":"seattle","name":"Seattle","country":"United States"},"timezone":"America/Los_Angeles","lat":47.61,"lon":-122.33,"us":true,"html":"https://weathermarket.io/station/KSEA","json":"https://weathermarket.io/api/station/KSEA","nwsCli":{"html":"https://weathermarket.io/nws-cli/KSEA","json":"https://weathermarket.io/api/nws-cli/KSEA"}},"date":"2026-10-09","window":{"date":"2026-10-09","timezone":"America/Los_Angeles","dayStartUtc":"2026-10-09T07:00:00.000Z","dayEndUtc":"2026-10-10T07:00:00.000Z","utcOffsetStart":"-07:00","utcOffsetEnd":"-07:00","hours":24},"complete":true,"values":{"tmax":14.4,"tmaxAt":"2026-10-09T17:17:00.000Z","tmin":10.6,"tminAt":"2026-10-10T05:53:00.000Z","tavg":12.9,"humidityMean":82.1,"windMean":5.1,"windMax":8.2,"windMaxAt":"2026-10-09T14:08:00.000Z","precipObservedCount":6,"nObservations":32,"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":"2026-10-09T17:17:00.000Z","obsTimeLocal":"2026-10-09T10:17:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 091717Z 22011G19KT 10SM BKN016 BKN025 14/11 A2980 RMK AO2 T01440111","temp":14.4,"dewpoint":11.1,"humidity":81,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-10T05:53:00.000Z","obsTimeLocal":"2026-10-09T22:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 100553Z 09009KT 10SM BKN030 OVC050 11/06 A2983 RMK AO2 RAE10 SLP107 P0000 60000 T01060061 10128 20106 58002 $","temp":10.6,"dewpoint":6.1,"humidity":74,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-09T14:08:00.000Z","obsTimeLocal":"2026-10-09T07:08:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 091408Z 19016G24KT 6SM -RA BR OVC010 14/12 A2979 RMK AO2 RAB07 CIG 008V012 P0000 T01390122","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":8.2,"precipObserved":true,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-10T10:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"e7d77490842668af","lastChangedAt":"2026-10-10T06:56:39.552Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KSEA/2026-10-09?format=record","status":"anchored","sha256":"f47fa00f6a557c1c3051266c485c531305018869f9a99e51265b0102bdfc6d2e","revision":"e7d77490842668af","flareTxHash":"0x18ebb5db348a195f0bc53b47bb3ff586ec3d057eae5a721f2fa9e7b82405225a","flareBlock":71767487,"anchoredAt":"2026-10-10T10:01:32.837Z","explorer":"https://flare-explorer.flare.network/tx/0x18ebb5db348a195f0bc53b47bb3ff586ec3d057eae5a721f2fa9e7b82405225a","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":32,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-09T17:17:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-10T05:53:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":14.4,"tmin":10.6,"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":14.44,"tmin":10,"precip":0.25,"corrected":false,"issuedAt":"2026-10-10T08:29:00.000Z","html":"https://weathermarket.io/nws-cli/KSEA/2026-10-09","json":"https://weathermarket.io/api/nws-cli/KSEA/2026-10-09"},"observations":[{"obsTimeUtc":"2026-10-09T07:53:00.000Z","obsTimeLocal":"2026-10-09T00:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 090753Z 20005KT 10SM FEW030 SCT150 12/11 A2989 RMK AO2 SLP129 T01170111 401940106","temp":11.7,"dewpoint":11.1,"humidity":96,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T08:07:00.000Z","obsTimeLocal":"2026-10-09T01:07:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 090807Z 22007KT 10SM BKN003 12/12 A2989 RMK AO2 T01220117","temp":12.2,"dewpoint":11.7,"humidity":97,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T08:18:00.000Z","obsTimeLocal":"2026-10-09T01:18:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 090818Z 23005KT 1 1/2SM R16L/5000VP6000FT BR BKN003 12/12 A2989 RMK AO2 T01220117","temp":12.2,"dewpoint":11.7,"humidity":97,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T08:27:00.000Z","obsTimeLocal":"2026-10-09T01:27:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 090827Z 24005KT 1/2SM R16L/P6000FT BR SCT002 BKN005 13/12 A2989 RMK AO2 SFC VIS 3 T01280117","temp":12.8,"dewpoint":11.7,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T08:53:00.000Z","obsTimeLocal":"2026-10-09T01:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 090853Z 18006KT 2SM BR BKN004 OVC010 13/12 A2988 RMK AO2 SFC VIS 6 SLP123 T01280122 58010","temp":12.8,"dewpoint":12.2,"humidity":96,"wind":3.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T09:53:00.000Z","obsTimeLocal":"2026-10-09T02:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 090953Z 16009KT 2SM BR BKN004 OVC010 13/12 A2987 RMK AO2 SFC VIS 5 SLP121 T01280122","temp":12.8,"dewpoint":12.2,"humidity":96,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T10:53:00.000Z","obsTimeLocal":"2026-10-09T03:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091053Z 18011KT 10SM SCT004 OVC012 13/12 A2985 RMK AO2 RAB13E45 SLP112 P0001 T01330117","temp":13.3,"dewpoint":11.7,"humidity":90,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T11:53:00.000Z","obsTimeLocal":"2026-10-09T04:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091153Z 19012G20KT 10SM OVC013 14/12 A2982 RMK AO2 SLP102 60001 70001 T01390117 10139 20117 58020","temp":13.9,"dewpoint":11.7,"humidity":87,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T12:53:00.000Z","obsTimeLocal":"2026-10-09T05:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091253Z 20013G20KT 10SM OVC012 14/12 A2981 RMK AO2 SLP098 T01390122","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T13:53:00.000Z","obsTimeLocal":"2026-10-09T06:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091353Z 19013G21KT 10SM SCT008 OVC011 14/12 A2980 RMK AO2 SLP096 T01390122","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T14:08:00.000Z","obsTimeLocal":"2026-10-09T07:08:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 091408Z 19016G24KT 6SM -RA BR OVC010 14/12 A2979 RMK AO2 RAB07 CIG 008V012 P0000 T01390122","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":8.2,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T14:53:00.000Z","obsTimeLocal":"2026-10-09T07:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091453Z 18012G24KT 10SM SCT008 OVC013 14/12 A2979 RMK AO2 RAB07E23 SLP093 P0000 60000 T01390122 56009","temp":13.9,"dewpoint":12.2,"humidity":89,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T15:53:00.000Z","obsTimeLocal":"2026-10-09T08:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091553Z 18011G18KT 7SM -RA FEW006 BKN010 OVC015 14/13 A2979 RMK AO2 RAB16 SLP094 P0000 T01390128","temp":13.9,"dewpoint":12.8,"humidity":93,"wind":5.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T16:53:00.000Z","obsTimeLocal":"2026-10-09T09:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091653Z 22012G22KT 10SM BKN012 BKN017 14/12 A2979 RMK AO2 RAE1558 SLP094 P0000 T01390117","temp":13.9,"dewpoint":11.7,"humidity":87,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T17:17:00.000Z","obsTimeLocal":"2026-10-09T10:17:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 091717Z 22011G19KT 10SM BKN016 BKN025 14/11 A2980 RMK AO2 T01440111","temp":14.4,"dewpoint":11.1,"humidity":81,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T17:53:00.000Z","obsTimeLocal":"2026-10-09T10:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091753Z 19011KT 10SM BKN019 BKN023 14/11 A2981 RMK AO2 SLP099 60000 T01440111 10144 20139 53005","temp":14.4,"dewpoint":11.1,"humidity":81,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T18:53:00.000Z","obsTimeLocal":"2026-10-09T11:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091853Z COR 21013KT 10SM -RA FEW010 BKN019 BKN024 14/10 A2981 RMK AO2 RAB33 SLP101 P0000 T01440100","temp":14.4,"dewpoint":10,"humidity":75,"wind":6.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T19:17:00.000Z","obsTimeLocal":"2026-10-09T12:17:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 091917Z 21011KT 5SM -RA BR FEW008 BKN019 BKN023 14/09 A2981 RMK AO2 VIS NW-NE 3 P0000 T01440094","temp":14.4,"dewpoint":9.4,"humidity":72,"wind":5.7,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T19:53:00.000Z","obsTimeLocal":"2026-10-09T12:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 091953Z 20012G19KT 9SM FEW007 BKN019 BKN023 14/08 A2982 RMK AO2 RAE37 SLP104 VIRGA S SHRA NW-NE P0000 T01440083","temp":14.4,"dewpoint":8.3,"humidity":67,"wind":6.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T20:13:00.000Z","obsTimeLocal":"2026-10-09T13:13:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 092013Z 01006KT 8SM -RA FEW007 SCT017 BKN025 13/09 A2982 RMK AO2 RAB11 P0000 T01330094","temp":13.3,"dewpoint":9.4,"humidity":77,"wind":3.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T20:53:00.000Z","obsTimeLocal":"2026-10-09T13:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 092053Z 04010KT 8SM FEW005 SCT017 BKN028 12/11 A2983 RMK AO2 RAB11E41 SLP106 P0000 60000 T01220106 53006","temp":12.2,"dewpoint":10.6,"humidity":90,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T21:19:00.000Z","obsTimeLocal":"2026-10-09T14:19:00-07:00","metarType":"SPECI","raw":"SPECI KSEA 092119Z 05013KT 10SM FEW010 SCT020 BKN034 13/11 A2983 RMK AO2 T01280106","temp":12.8,"dewpoint":10.6,"humidity":86,"wind":6.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T21:53:00.000Z","obsTimeLocal":"2026-10-09T14:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 092153Z 05014KT 10SM FEW010 SCT026 BKN044 13/09 A2983 RMK AO2 SLP108 T01280094","temp":12.8,"dewpoint":9.4,"humidity":80,"wind":7.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T22:53:00.000Z","obsTimeLocal":"2026-10-09T15:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 092253Z 03011KT 10SM FEW012 FEW030 BKN050 12/07 A2984 RMK AO2 SLP110 T01170072","temp":11.7,"dewpoint":7.2,"humidity":74,"wind":5.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-09T23:53:00.000Z","obsTimeLocal":"2026-10-09T16:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 092353Z 04015KT 10SM FEW038 BKN060 13/07 A2984 RMK AO2 SLP111 60000 T01280067 10144 20117 51005","temp":12.8,"dewpoint":6.7,"humidity":66,"wind":7.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T00:53:00.000Z","obsTimeLocal":"2026-10-09T17:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 100053Z 06010KT 10SM FEW046 BKN055 BKN065 12/06 A2983 RMK AO2 SLP109 T01220061","temp":12.2,"dewpoint":6.1,"humidity":66,"wind":5.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T01:53:00.000Z","obsTimeLocal":"2026-10-09T18:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 100153Z 07005KT 10SM FEW050 BKN065 12/07 A2983 RMK AO2 SLP107 T01220067 $","temp":12.2,"dewpoint":6.7,"humidity":69,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T02:53:00.000Z","obsTimeLocal":"2026-10-09T19:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 100253Z 12007KT 10SM BKN042 OVC050 12/06 A2984 RMK AO2 SLP109 T01170056 55001 $","temp":11.7,"dewpoint":5.6,"humidity":66,"wind":3.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T03:53:00.000Z","obsTimeLocal":"2026-10-09T20:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 100353Z 08009KT 10SM FEW036 OVC040 12/06 A2984 RMK AO2 SLP109 T01170061 $","temp":11.7,"dewpoint":6.1,"humidity":69,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T04:53:00.000Z","obsTimeLocal":"2026-10-09T21:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 100453Z 09008KT 10SM -RA OVC038 11/06 A2984 RMK AO2 RAB37 SLP109 P0000 T01110061 $","temp":11.1,"dewpoint":6.1,"humidity":71,"wind":4.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T05:53:00.000Z","obsTimeLocal":"2026-10-09T22:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 100553Z 09009KT 10SM BKN030 OVC050 11/06 A2983 RMK AO2 RAE10 SLP107 P0000 60000 T01060061 10128 20106 58002 $","temp":10.6,"dewpoint":6.1,"humidity":74,"wind":4.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-10T06:53:00.000Z","obsTimeLocal":"2026-10-09T23:53:00-07:00","metarType":"METAR","raw":"METAR KSEA 100653Z 10006KT 10SM BKN030 OVC040 11/06 A2983 RMK AO2 SLP107 T01060061 $","temp":10.6,"dewpoint":6.1,"humidity":74,"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/KSEA/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/KSEA/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for KSEA for the contract date (station-local calendar day), as published at https://weathermarket.io/station/KSEA/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/KSEA/2026-10-09","json":"https://weathermarket.io/api/station/KSEA/2026-10-09","record":"https://weathermarket.io/api/station/KSEA/2026-10-09?format=record","prev":"https://weathermarket.io/station/KSEA/2026-10-08","next":"https://weathermarket.io/station/KSEA/2026-10-10","station":"https://weathermarket.io/station/KSEA","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=SEA&data=metar&year1=2026&month1=10&day1=9&year2=2026&month2=10&day2=11&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=KSEA&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=10&day=9&hora=7&anof=2026&mesf=10&dayf=10&horaf=6&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KSEA"}}}