Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-03 · 2026-10-05 → · All dates for KSEA · JSON
METAR KSEA 042253Z 28005KT 10SM CLR 21/13 A3005 RMK AO2 SLP182 T02060128 $
METAR KSEA 041153Z 01006KT 10SM CLR 11/11 A3006 RMK AO2 SLP184 T01110106 10144 20111 50000 $
Local day 2026-10-04 03:00 EDT → 2026-10-05 03:00 EDT (24 h, UTC-07:00) · 37 reports · longest gap 60 min
High 69°F (20.56°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 2026-10-05 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 2ef6ba2b77b45ba1975e95797b1d06d28761e4b711ca830f2dc2af1081eb9d98
Transaction 0x639f69347149db1a7f606eeefbd14e864ff089ca2449223ca90c71d7f0b5aed2 · 2026-10-05 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 37 · 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 |
|---|---|---|---|---|---|
| 2026-10-04 03:53 EDT | METAR | 12.8° | 11.7° | 1.5 | METAR KSEA 040753Z 01003KT 10SM CLR 13/12 A3005 RMK AO2 SLP181 T01280117 401940128 $ |
| 2026-10-04 04:53 EDT | METAR | 12.8° | 11.7° | 0 | METAR KSEA 040853Z 00000KT 10SM CLR 13/12 A3006 RMK AO2 SLP184 T01280117 53002 $ |
| 2026-10-04 05:53 EDT | METAR | 12.8° | 11.7° | 0 | METAR KSEA 040953Z 00000KT 10SM CLR 13/12 A3006 RMK AO2 SLP185 T01280117 $ |
| 2026-10-04 06:53 EDT | METAR | 11.7° | 11.1° | 2.1 | METAR KSEA 041053Z 35004KT 10SM CLR 12/11 A3006 RMK AO2 SLP185 T01170111 $ |
| 2026-10-04 07:53 EDT | METAR | 11.1°min | 10.6° | 3.1 | METAR KSEA 041153Z 01006KT 10SM CLR 11/11 A3006 RMK AO2 SLP184 T01110106 10144 20111 50000 $ |
| 2026-10-04 08:36 EDT | SPECI | 11.7° | 11.1° | 3.1 | SPECI KSEA 041236Z 03006KT 6SM BR SCT002 12/11 A3006 RMK AO2 VIS N1 T01170111 $ |
| 2026-10-04 08:40 EDT | SPECI | 12.2° | 11.7° | 3.6 | SPECI KSEA 041240Z 03007KT 6SM BR BKN002 12/12 A3006 RMK AO2 BKN V SCT VIS N1 T01220117 $ |
| 2026-10-04 08:53 EDT | METAR | 12.2° | 11.7° | 3.1 | METAR KSEA 041253Z 04006KT 5SM BR SCT002 12/12 A3006 RMK AO2 SLP184 BKN V SCT VIS N1 T01220117 $ |
| 2026-10-04 09:07 EDT | SPECI | 11.7° | 11.1° | 2.1 | SPECI KSEA 041307Z 04004KT 3SM BR BKN002 12/11 A3006 RMK AO2 T01170111 $ |
| 2026-10-04 09:29 EDT | SPECI | 12.2° | 11.7° | 1.5 | SPECI KSEA 041329Z 04003KT 3/4SM R16L/2800VP6000FT BR OVC002 12/12 A3006 RMK AO2 T01220117 $ |
| 2026-10-04 09:39 EDT | SPECI | 11.7° | 11.7° | 2.1 | SPECI KSEA 041339Z 03004KT 1/2SM R16L/1800V3500FT FG VV001 12/12 A3006 RMK AO2 T01170117 $ |
| 2026-10-04 09:53 EDT | METAR | 11.7° | 11.7° | 2.1 | METAR KSEA 041353Z 03004KT 1/4SM R16L/1600V2400FT FG VV001 12/12 A3006 RMK AO2 SLP187 T01170117 $ |
| 2026-10-04 10:29 EDT | SPECI | 11.7° | 11.7° | 2.1 | SPECI KSEA 041429Z 35004KT M1/4SM R16L/0700V1000FT FG VV001 12/12 A3007 RMK AO2 T01170117 $ |
| 2026-10-04 10:30 EDT | SPECI | 11.7° | 11.7° | 2.1 | SPECI KSEA 041430Z 36004KT 1/4SM R16L/0700V0800FT FG VV001 12/12 A3007 RMK AO2 T01170117 $ |
| 2026-10-04 10:53 EDT | METAR | 11.7° | 11.7° | 2.1 | METAR KSEA 041453Z 36004KT 1/4SM R16L/0700V1000FT FG VV001 12/12 A3008 RMK AO2 SLP191 T01170117 53005 $ |
| 2026-10-04 11:53 EDT | METAR | 12.2° | 12.2° | 2.1 | METAR KSEA 041553Z 36004KT 1/4SM R16L/0800V1600FT FG VV001 12/12 A3009 RMK AO2 SLP194 T01220122 $ |
| 2026-10-04 12:24 EDT | SPECI | 12.2° | 12.2° | 2.6 | SPECI KSEA 041624Z 04005KT 1/4SM R16L/1000V3500FT FG VV001 12/12 A3009 RMK AO2 T01220122 $ |
| 2026-10-04 12:53 EDT | METAR | 12.8° | 12.2° | 2.1 | METAR KSEA 041653Z 01004KT 1/4SM R16L/1600VP6000FT FG VV001 13/12 A3009 RMK AO2 SLP196 T01280122 $ |
| 2026-10-04 13:37 EDT | SPECI | 12.8° | 12.2° | 2.1 | SPECI KSEA 041737Z VRB04KT 1/2SM R16L/2000VP6000FT FG VV001 13/12 A3009 RMK AO2 T01280122 $ |
| 2026-10-04 13:53 EDT | METAR | 12.8° | 12.8° | 1.5 | METAR KSEA 041753Z 35003KT 2SM R16L/4000VP6000FT BR OVC001 13/13 A3009 RMK AO2 SLP196 T01280128 10128 20106 50005 $ |
| 2026-10-04 14:13 EDT | SPECI | 12.8° | 12.8° | 2.1 | SPECI KSEA 041813Z 02004KT 4SM BR OVC001 13/13 A3009 RMK AO2 T01280128 $ |
| 2026-10-04 14:20 EDT | SPECI | 12.8° | 12.2° | 1.5 | SPECI KSEA 041820Z VRB03KT 1SM R16L/P6000FT BR OVC002 13/12 A3009 RMK AO2 SFC VIS 5 T01280122 $ |
| 2026-10-04 14:42 EDT | SPECI | 13.3° | 12.2° | 1.5 | SPECI KSEA 041842Z 36003KT 3SM BR OVC004 13/12 A3009 RMK AO2 SFC VIS 7 T01330122 $ |
| 2026-10-04 14:53 EDT | METAR | 13.3° | 12.8° | 1.5 | METAR KSEA 041853Z VRB03KT 8SM BKN004 OVC020 13/13 A3008 RMK AO2 SLP193 T01330128 $ |
| 2026-10-04 15:17 EDT | SPECI | 14.4° | 12.8° | 2.1 | SPECI KSEA 041917Z 06004KT 10SM SCT006 BKN020 BKN040 14/13 A3008 RMK AO2 T01440128 $ |
| 2026-10-04 15:53 EDT | METAR | 17.2° | 12.8° | 2.1 | METAR KSEA 041953Z VRB04KT 10SM FEW006 FEW020 SCT050 17/13 A3008 RMK AO2 SLP191 T01720128 $ |
| 2026-10-04 16:53 EDT | METAR | 19.4° | 13.3° | 1.5 | METAR KSEA 042053Z VRB03KT 10SM FEW040 FEW100 19/13 A3007 RMK AO2 SLP187 T01940133 58008 $ |
| 2026-10-04 17:53 EDT | METAR | 19.4° | 13.3° | 2.6 | METAR KSEA 042153Z 26005KT 10SM FEW035 19/13 A3006 RMK AO2 SLP184 T01940133 $ |
| 2026-10-04 18:53 EDT | METAR | 20.6°max | 12.8° | 2.6 | METAR KSEA 042253Z 28005KT 10SM CLR 21/13 A3005 RMK AO2 SLP182 T02060128 $ |
| 2026-10-04 19:53 EDT | METAR | 20.6° | 12.8° | 1.5 | METAR KSEA 042353Z VRB03KT 10SM CLR 21/13 A3004 RMK AO2 SLP179 T02060128 10206 20128 56008 $ |
| 2026-10-04 20:53 EDT | METAR | 19.4° | 12.8° | 2.1 | METAR KSEA 050053Z 27004KT 10SM FEW035 19/13 A3004 RMK AO2 SLP177 T01940128 $ |
| 2026-10-04 21:53 EDT | METAR | 17.2° | 12.2° | 1.5 | METAR KSEA 050153Z 30003KT 10SM FEW045 17/12 A3004 RMK AO2 SLP178 T01720122 $ |
| 2026-10-04 22:53 EDT | METAR | 17.8° | 12.2° | 2.6 | METAR KSEA 050253Z 36005KT 10SM CLR 18/12 A3005 RMK AO2 SLP181 T01780122 53002 $ |
| 2026-10-04 23:53 EDT | METAR | 16.7° | 11.7° | 1.5 | METAR KSEA 050353Z 34003KT 10SM CLR 17/12 A3006 RMK AO2 SLP185 T01670117 $ |
| 2026-10-05 00:53 EDT | METAR | 15.6° | 11.7° | 2.1 | METAR KSEA 050453Z 35004KT 10SM CLR 16/12 A3007 RMK AO2 SLP188 T01560117 $ |
| 2026-10-05 01:53 EDT | METAR | 15.6° | 12.2° | 1.5 | METAR KSEA 050553Z 36003KT 10SM CLR 16/12 A3008 RMK AO2 SLP192 T01560122 10206 20144 51011 $ |
| 2026-10-05 02:53 EDT | METAR | 14.4° | 11.7° | 1.5 | METAR KSEA 050653Z 31003KT 10SM CLR 14/12 A3008 RMK AO2 SLP192 T01440117 $ |
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/2026-10-04 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).