Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-09-22 · 2026-09-24 → · All dates for KSEA · JSON
METAR KSEA 232353Z VRB03KT 10SM SCT048 BKN070 BKN250 19/08 A3012 RMK AO2 SLP203 T01890083 10194 20150 56007 $
METAR KSEA 240653Z 03012KT 10SM FEW055 BKN250 13/06 A3009 RMK AO2 SLP195 T01330056 $
Local day 2026-09-23 03:00 EDT → 2026-09-24 03:00 EDT (24 h, UTC-07:00) · 9 reports · longest gap 953 min
High 67°F (19.44°C) · Low 53°F (11.67°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 2026-09-24 06:00 EDT · correction hold 3 h after local midnight
longest gap 953 min · limit 90 min
SHA-256 –
Final - the next hourly run writes this record's hash to SnapshotAnchor on Flare
Canonical record bytes (hash these) · SnapshotAnchor 0x2B598129… (chain 14)
good 9 · 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 |
|---|---|---|---|---|---|
| 2026-09-23 18:53 EDT | – | 18.3° | 5.6° | 2.1 | METAR KSEA 232253Z 30004KT 10SM FEW030 BKN045 BKN250 18/06 A3012 RMK AO2 SLP204 T01830056 $ |
| 2026-09-23 19:53 EDT | – | 18.9°max | 8.3° | 1.5 | METAR KSEA 232353Z VRB03KT 10SM SCT048 BKN070 BKN250 19/08 A3012 RMK AO2 SLP203 T01890083 10194 20150 56007 $ |
| 2026-09-23 20:53 EDT | – | 17.8° | 10° | 4.1 | METAR KSEA 240053Z 01008KT 10SM SCT047 BKN070 BKN230 18/10 A3011 RMK AO2 SLP200 T01780100 $ |
| 2026-09-23 21:53 EDT | – | 15.6° | 9.4° | 2.6 | METAR KSEA 240153Z 36005KT 10SM FEW050 SCT070 BKN230 16/09 A3010 RMK AO2 SLP199 T01560094 $ |
| 2026-09-23 22:53 EDT | – | 15° | 8.3° | 5.1 | METAR KSEA 240253Z 01010KT 10SM BKN050 BKN230 15/08 A3011 RMK AO2 SLP201 T01500083 55003 $ |
| 2026-09-23 23:53 EDT | – | 15° | 7.2° | 7.2 | METAR KSEA 240353Z 02014KT 10SM BKN050 BKN230 15/07 A3011 RMK AO2 SLP203 T01500072 $ |
| 2026-09-24 00:53 EDT | – | 14.4° | 5° | 5.7 | METAR KSEA 240453Z 03011KT 10SM BKN050 BKN230 14/05 A3011 RMK AO2 SLP202 T01440050 $ |
| 2026-09-24 01:53 EDT | – | 13.9° | 5° | 6.2 | METAR KSEA 240553Z 03012KT 10SM BKN055 14/05 A3010 RMK AO2 SLP200 T01390050 10194 20139 58001 $ |
| 2026-09-24 02:53 EDT | – | 13.3°min | 5.6° | 6.2 | METAR KSEA 240653Z 03012KT 10SM FEW055 BKN250 13/06 A3009 RMK AO2 SLP195 T01330056 $ |
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/2026-09-23 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).