Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-19 · 2026-10-21 → · All dates for KSEA · JSON
METAR KSEA 202253Z 01008KT 10SM FEW250 17/07 A3004 RMK AO2 SLP180 T01670072
SPECI KSEA 201045Z 01008KT 10SM SCT009 08/07 A3008 RMK AO2 T00830072 $
Local day 2026-10-20 03:00 EDT → 2026-10-21 03:00 EDT (24 h, UTC-07:00) · 28 reports · longest gap 60 min
High 62°F (16.67°C) · Low 46°F (7.78°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 2026-10-21 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 969b80cf257d0676bb2ec9e0c70d27ee61b152983d0a32ff35ff5f552d53333f
Transaction 0x42885942905a25b19717f8fc7857efc220f596fecdf3bd9f5122cee821bb6876 · 2026-11-05 16:01 EST
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 28 · 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 |
|---|---|---|---|---|---|
| 2026-10-20 03:53 EDT | METAR | 9.4° | 7.2° | 3.6 | METAR KSEA 200753Z 05007KT 10SM CLR 09/07 A3007 RMK AO2 SLP190 T00940072 401670078 $ |
| 2026-10-20 04:53 EDT | METAR | 9.4° | 6.7° | 3.1 | METAR KSEA 200853Z 05006KT 10SM CLR 09/07 A3007 RMK AO2 SLP189 T00940067 50003 $ |
| 2026-10-20 05:53 EDT | METAR | 8.9° | 7.2° | 4.1 | METAR KSEA 200953Z 02008KT 10SM CLR 09/07 A3008 RMK AO2 SLP191 T00890072 $ |
| 2026-10-20 06:45 EDT | SPECI | 8.3°min | 7.2° | 4.1 | SPECI KSEA 201045Z 01008KT 10SM SCT009 08/07 A3008 RMK AO2 T00830072 $ |
| 2026-10-20 06:53 EDT | METAR | 8.3° | 7.2° | 3.1 | METAR KSEA 201053Z 01006KT 10SM BKN009 08/07 A3008 RMK AO2 SLP193 T00830072 $ |
| 2026-10-20 07:48 EDT | SPECI | 9° | 8° | 4.1 | SPECI KSEA 201148Z 04008KT 10SM OVC004 09/08 A3008 RMK AO2 $ |
| 2026-10-20 07:53 EDT | METAR | 8.9° | 7.8° | 3.6 | METAR KSEA 201153Z 05007KT 10SM OVC004 09/08 A3008 RMK AO2 SLP192 T00890078 10106 20078 51001 $ |
| 2026-10-20 08:11 EDT | SPECI | 8.9° | 7.8° | 4.6 | SPECI KSEA 201211Z 04009KT 10SM OVC006 09/08 A3008 RMK AO2 T00890078 $ |
| 2026-10-20 08:53 EDT | METAR | 8.9° | 7.2° | 4.6 | METAR KSEA 201253Z 03009KT 8SM BKN005 OVC010 09/07 A3008 RMK AO2 SLP194 T00890072 $ |
| 2026-10-20 09:53 EDT | METAR | 8.3° | 7.2° | 6.2 | METAR KSEA 201353Z 02012KT 8SM BKN005 OVC009 08/07 A3010 RMK AO2 SLP200 T00830072 |
| 2026-10-20 10:53 EDT | METAR | 8.3° | 7.2° | 5.1 | METAR KSEA 201453Z 02010KT 6SM BR OVC005 08/07 A3010 RMK AO2 SLP200 T00830072 51006 |
| 2026-10-20 11:53 EDT | METAR | 8.9° | 7.2° | 4.6 | METAR KSEA 201553Z 03009KT 6SM BR OVC006 09/07 A3011 RMK AO2 SLP202 CIG 004V008 T00890072 |
| 2026-10-20 12:53 EDT | METAR | 10° | 7.8° | 5.1 | METAR KSEA 201653Z 03010KT 9SM BKN007 10/08 A3012 RMK AO2 SLP207 T01000078 |
| 2026-10-20 13:19 EDT | SPECI | 10° | 7.8° | 5.1 | SPECI KSEA 201719Z 02010KT 10SM BKN010 10/08 A3012 RMK AO2 CIG 009V011 T01000078 |
| 2026-10-20 13:53 EDT | METAR | 11.1° | 7.2° | 7.2 | METAR KSEA 201753Z 01014KT 10SM SCT010 11/07 A3011 RMK AO2 SLP202 SCT V BKN T01110072 10117 20083 50004 |
| 2026-10-20 14:53 EDT | METAR | 12.8° | 7.2° | 6.2 | METAR KSEA 201853Z 01012KT 10SM FEW015 13/07 A3010 RMK AO2 SLP200 T01280072 |
| 2026-10-20 15:53 EDT | METAR | 13.9° | 7.2° | 4.1 | METAR KSEA 201953Z 02008KT 10SM FEW250 14/07 A3009 RMK AO2 SLP197 T01390072 |
| 2026-10-20 16:53 EDT | METAR | 15.6° | 7.2° | 3.6 | METAR KSEA 202053Z 01007KT 10SM FEW250 16/07 A3007 RMK AO2 SLP190 T01560072 58012 |
| 2026-10-20 17:53 EDT | METAR | 16.1° | 7.2° | 3.6 | METAR KSEA 202153Z 35007KT 10SM FEW250 16/07 A3005 RMK AO2 SLP184 T01610072 |
| 2026-10-20 18:53 EDT | METAR | 16.7°max | 7.2° | 4.1 | METAR KSEA 202253Z 01008KT 10SM FEW250 17/07 A3004 RMK AO2 SLP180 T01670072 |
| 2026-10-20 19:53 EDT | METAR | 16.1° | 7.8° | 4.1 | METAR KSEA 202353Z 35008KT 10SM FEW250 16/08 A3003 RMK AO2 SLP176 T01610078 10167 20111 56014 |
| 2026-10-20 20:53 EDT | METAR | 13.9° | 8.3° | 3.6 | METAR KSEA 210053Z 36007KT 10SM FEW250 14/08 A3003 RMK AO2 SLP176 T01390083 |
| 2026-10-20 21:53 EDT | METAR | 11.7° | 7.2° | 2.6 | METAR KSEA 210153Z 34005KT 10SM FEW250 12/07 A3003 RMK AO2 SLP176 T01170072 |
| 2026-10-20 22:53 EDT | METAR | 10.6° | 7.2° | 4.1 | METAR KSEA 210253Z 35008KT 10SM CLR 11/07 A3003 RMK AO2 SLP175 T01060072 58002 |
| 2026-10-20 23:53 EDT | METAR | 10.6° | 7.8° | 4.1 | METAR KSEA 210353Z 36008KT 10SM CLR 11/08 A3003 RMK AO2 SLP175 T01060078 |
| 2026-10-21 00:53 EDT | METAR | 11.7° | 7.8° | 3.1 | METAR KSEA 210453Z 02006KT 10SM CLR 12/08 A3002 RMK AO2 SLP172 T01170078 |
| 2026-10-21 01:53 EDT | METAR | 11.1° | 7.2° | 4.1 | METAR KSEA 210553Z 03008KT 10SM CLR 11/07 A3002 RMK AO2 SLP171 T01110072 10161 20100 58003 |
| 2026-10-21 02:53 EDT | METAR | 9.4° | 7.2° | 1.5 | METAR KSEA 210653Z 34003KT 10SM CLR 09/07 A3002 RMK AO2 SLP170 T00940072 |
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/2026-10-20 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).