Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-09-30 · 2026-10-02 → · All dates for KSEA · JSON
METAR KSEA 012153Z 00000KT 10SM SCT090 BKN130 BKN220 19/09 A3005 RMK AO2 SLP182 ACSL DSNT SE T01940089 $
METAR KSEA 011053Z 00000KT 10SM SCT090 SCT120 BKN180 OVC240 11/09 A3008 RMK AO2 SLP190 T01110094 $
Local day 2026-10-01 03:00 EDT → 2026-10-02 03:00 EDT (24 h, UTC-07:00) · 24 reports · longest gap 60 min
High 68°F (20°C) · Low 51°F (10.56°C) · NWS CLI archive
US markets usually settle on the official NWS daily climate value (CLI), which is archived separately; the two values can differ by about a degree and are shown side by side.
final at 2026-10-02 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 40aa012240d4b6cda8af1027b7da54c209fe86f1b4f0dd78002ce69b9d76c802
Transaction 0xd5ba2bcf8addab540541c3b2f9a43b05efe09f7dad2c98f53ef2a8f1049e7da4 · 2026-10-02 06:01 EDT
GET the record bytes, SHA-256 them, and call SnapshotAnchor.isAnchored(sha256) on Flare - the anchored record is the one to settle on
Canonical record bytes (hash these) · SnapshotAnchor 0x2B598129… (chain 14)
good 24 · suspect 0 · bad 0 · High good · Low good
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.
| Time | Type | Temp °C | Dew °C | Wind m/s | Raw report |
|---|---|---|---|---|---|
| 2026-10-01 03:53 EDT | METAR | 12.8° | 9.4° | 3.6 | METAR KSEA 010753Z 04007KT 10SM BKN120 OVC170 13/09 A3009 RMK AO2 SLP195 T01280094 401830094 $ |
| 2026-10-01 04:53 EDT | METAR | 12.2° | 9.4° | 3.1 | METAR KSEA 010853Z 03006KT 10SM SCT100 BKN160 OVC240 12/09 A3009 RMK AO2 SLP193 T01220094 58003 $ |
| 2026-10-01 05:53 EDT | METAR | 11.7° | 9.4° | 0 | METAR KSEA 010953Z 00000KT 10SM SCT140 BKN200 OVC240 12/09 A3008 RMK AO2 SLP192 T01170094 $ |
| 2026-10-01 06:53 EDT | METAR | 11.1°min | 9.4° | 0 | METAR KSEA 011053Z 00000KT 10SM SCT090 SCT120 BKN180 OVC240 11/09 A3008 RMK AO2 SLP190 T01110094 $ |
| 2026-10-01 07:53 EDT | METAR | 11.1° | 9.4° | 0 | METAR KSEA 011153Z 00000KT 10SM BKN070 BKN085 OVC170 11/09 A3007 RMK AO2 SLP189 T01110094 10128 20106 56004 $ |
| 2026-10-01 08:53 EDT | METAR | 11.1° | 9.4° | 0 | METAR KSEA 011253Z 00000KT 10SM BKN065 BKN080 OVC170 11/09 A3007 RMK AO2 SLP190 T01110094 $ |
| 2026-10-01 09:53 EDT | METAR | 11.7° | 10° | 0 | METAR KSEA 011353Z 00000KT 10SM BKN060 OVC170 12/10 A3007 RMK AO2 SLP190 T01170100 $ |
| 2026-10-01 10:53 EDT | METAR | 11.7° | 10° | 1.5 | METAR KSEA 011453Z 32003KT 10SM BKN060 BKN080 BKN140 OVC200 12/10 A3008 RMK AO2 SLP191 ACSL DSNT SE T01170100 53001 $ |
| 2026-10-01 11:53 EDT | METAR | 12.2° | 10° | 1.5 | METAR KSEA 011553Z 31003KT 10SM BKN055 BKN130 BKN200 12/10 A3008 RMK AO2 SLP193 ACSL DSNT SE T01220100 $ |
| 2026-10-01 12:53 EDT | METAR | 13.9° | 10° | 0 | METAR KSEA 011653Z 00000KT 10SM FEW055 SCT110 SCT140 BKN220 14/10 A3008 RMK AO2 SLP194 ACSL DSNT SE T01390100 $ |
| 2026-10-01 13:53 EDT | METAR | 15.6° | 10.6° | 2.1 | METAR KSEA 011753Z VRB04KT 10SM FEW060 FEW130 BKN220 16/11 A3008 RMK AO2 SLP192 ACSL DSNT SE T01560106 10156 20106 50001 $ |
| 2026-10-01 14:53 EDT | METAR | 16.7° | 10.6° | 2.1 | METAR KSEA 011853Z VRB04KT 10SM FEW130 BKN220 17/11 A3008 RMK AO2 SLP191 ACSL DSNT SE T01670106 $ |
| 2026-10-01 15:53 EDT | METAR | 17.8° | 10° | 0 | METAR KSEA 011953Z 00000KT 10SM SCT095 SCT130 BKN220 18/10 A3007 RMK AO2 SLP188 ACSL DSNT SE T01780100 $ |
| 2026-10-01 16:53 EDT | METAR | 18.9° | 9.4° | 2.6 | METAR KSEA 012053Z 28005KT 10SM SCT085 BKN130 BKN220 19/09 A3007 RMK AO2 SLP186 ACSL DSNT SE T01890094 58004 $ |
| 2026-10-01 17:53 EDT | METAR | 19.4°max | 8.9° | 0 | METAR KSEA 012153Z 00000KT 10SM SCT090 BKN130 BKN220 19/09 A3005 RMK AO2 SLP182 ACSL DSNT SE T01940089 $ |
| 2026-10-01 18:53 EDT | METAR | 18.9° | 8.3° | 2.1 | METAR KSEA 012253Z 22004KT 10SM FEW085 FEW120 BKN210 19/08 A3003 RMK AO2 SLP174 ACSL DSNT SE T01890083 $ |
| 2026-10-01 19:53 EDT | METAR | 19.4° | 9.4° | 3.1 | METAR KSEA 012353Z 29006KT 10SM FEW085 FEW130 BKN210 19/09 A3002 RMK AO2 SLP169 ACSL DSNT SE T01940094 10200 20156 57017 $ |
| 2026-10-01 20:53 EDT | METAR | 18.3° | 10° | 0 | METAR KSEA 020053Z 00000KT 10SM FEW080 FEW130 BKN220 18/10 A3001 RMK AO2 SLP166 ACSL DSNT SE T01830100 $ |
| 2026-10-01 21:53 EDT | METAR | 17.2° | 10.6° | 0 | METAR KSEA 020153Z 00000KT 10SM FEW080 SCT130 BKN240 17/11 A3000 RMK AO2 SLP166 ACSL DSNT SE T01720106 $ |
| 2026-10-01 22:53 EDT | METAR | 15° | 10.6° | 2.1 | METAR KSEA 020253Z 29004KT 10SM FEW080 SCT120 SCT230 15/11 A3002 RMK AO2 SLP171 T01500106 53001 $ |
| 2026-10-01 23:53 EDT | METAR | 16.7° | 9.4° | 0 | METAR KSEA 020353Z 00000KT 10SM FEW120 BKN220 17/09 A3000 RMK AO2 SLP165 T01670094 $ |
| 2026-10-02 00:53 EDT | METAR | 14.4° | 10.6° | 2.1 | METAR KSEA 020453Z 36004KT 10SM BKN240 14/11 A3002 RMK AO2 SLP172 T01440106 $ |
| 2026-10-02 01:53 EDT | METAR | 15° | 10.6° | 2.1 | METAR KSEA 020553Z 31004KT 10SM BKN240 15/11 A3002 RMK AO2 SLP171 T01500106 10194 20139 53001 $ |
| 2026-10-02 02:53 EDT | METAR | 13.3° | 11.1° | 0 | METAR KSEA 020653Z 00000KT 10SM SCT060 BKN210 13/11 A3002 RMK AO2 SLP169 T01330111 $ |
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/2026-10-01 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.
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.
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.
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).