Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-09-27 · 2026-09-29 → · All dates for KSEA · JSON
METAR KSEA 282153Z 19009KT 10SM BKN130 18/08 A3003 RMK AO2 SLP176 T01780078 $
METAR KSEA 281253Z 14004KT 10SM SCT220 SCT250 08/07 A3005 RMK AO2 SLP181 T00780067 $
Local day 2026-09-28 03:00 EDT → 2026-09-29 03:00 EDT (24 h, UTC-07:00) · 24 reports · longest gap 60 min
High 64°F (17.78°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 2026-09-29 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 dd397d46b65fb399828c81003c1fc878e35e706ec907c0bd5887cef6ecc413cd
Transaction 0x249d9e706f59c57e359ac56df8428e8defd3e8c7033908cc096c8a56852b0c82 · 2026-10-01 21:01 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 |
|---|---|---|---|---|---|
| 2026-09-28 03:53 EDT | METAR | 8.9° | 7.2° | 3.1 | METAR KSEA 280753Z 02006KT 10SM FEW170 09/07 A3005 RMK AO2 SLP181 T00890072 401830089 $ |
| 2026-09-28 04:53 EDT | METAR | 9.4° | 7.2° | 0 | METAR KSEA 280853Z 00000KT 10SM BKN250 09/07 A3005 RMK AO2 SLP183 T00940072 53006 $ |
| 2026-09-28 05:53 EDT | METAR | 9.4° | 8.3° | 1.5 | METAR KSEA 280953Z 17003KT 10SM BKN250 09/08 A3006 RMK AO2 SLP186 T00940083 $ |
| 2026-09-28 06:53 EDT | METAR | 8.9° | 7.2° | 2.6 | METAR KSEA 281053Z 13005KT 10SM BKN250 09/07 A3006 RMK AO2 SLP184 T00890072 $ |
| 2026-09-28 07:53 EDT | METAR | 8.9° | 7.2° | 1.5 | METAR KSEA 281153Z 12003KT 10SM FEW220 SCT250 09/07 A3004 RMK AO2 SLP180 T00890072 10139 20083 58003 $ |
| 2026-09-28 08:53 EDT | METAR | 7.8°min | 6.7° | 2.1 | METAR KSEA 281253Z 14004KT 10SM SCT220 SCT250 08/07 A3005 RMK AO2 SLP181 T00780067 $ |
| 2026-09-28 09:53 EDT | METAR | 8.9° | 7.2° | 3.1 | METAR KSEA 281353Z 13006KT 10SM FEW010 BKN170 BKN230 09/07 A3005 RMK AO2 SLP183 T00890072 $ |
| 2026-09-28 10:53 EDT | METAR | 8.9° | 6.7° | 1.5 | METAR KSEA 281453Z 21003KT 10SM FEW010 BKN150 BKN230 09/07 A3007 RMK AO2 SLP190 T00890067 53010 $ |
| 2026-09-28 11:53 EDT | METAR | 10° | 8.3° | 2.1 | METAR KSEA 281553Z 19004KT 10SM FEW010 SCT150 SCT250 10/08 A3008 RMK AO2 SLP192 T01000083 $ |
| 2026-09-28 12:53 EDT | METAR | 11.7° | 8.3° | 2.6 | METAR KSEA 281653Z 18005KT 10SM FEW010 SCT150 SCT220 12/08 A3008 RMK AO2 SLP193 T01170083 $ |
| 2026-09-28 13:53 EDT | METAR | 13.9° | 8.9° | 2.1 | METAR KSEA 281753Z VRB04KT 10SM FEW020 FEW150 SCT220 14/09 A3008 RMK AO2 SLP192 T01390089 10139 20078 50002 $ |
| 2026-09-28 14:53 EDT | METAR | 15.6° | 8.9° | 0 | METAR KSEA 281853Z 00000KT 10SM SCT180 SCT220 16/09 A3007 RMK AO2 SLP190 T01560089 $ |
| 2026-09-28 15:53 EDT | METAR | 16.7° | 8.9° | 3.1 | METAR KSEA 281953Z 20006KT 10SM BKN160 BKN220 17/09 A3006 RMK AO2 SLP184 T01670089 $ |
| 2026-09-28 16:53 EDT | METAR | 16.7° | 7.8° | 3.1 | METAR KSEA 282053Z 20006KT 10SM BKN140 17/08 A3005 RMK AO2 SLP182 T01670078 58010 $ |
| 2026-09-28 17:53 EDT | METAR | 17.8°max | 7.8° | 4.6 | METAR KSEA 282153Z 19009KT 10SM BKN130 18/08 A3003 RMK AO2 SLP176 T01780078 $ |
| 2026-09-28 18:53 EDT | METAR | 17.2° | 7.2° | 5.1 | METAR KSEA 282253Z 21010KT 10SM BKN110 17/07 A3001 RMK AO2 SLP170 ACSL DSNT SE T01720072 $ |
| 2026-09-28 19:53 EDT | METAR | 17.2° | 7.8° | 5.1 | METAR KSEA 282353Z 21010KT 10SM BKN110 17/08 A3001 RMK AO2 SLP168 ACSL DSNT SE T01720078 10178 20139 56014 $ |
| 2026-09-28 20:53 EDT | METAR | 17.2° | 8.9° | 5.1 | METAR KSEA 290053Z 21010KT 10SM BKN100 BKN230 17/09 A2999 RMK AO2 SLP161 T01720089 $ |
| 2026-09-28 21:53 EDT | METAR | 16.1° | 10° | 5.7 | METAR KSEA 290153Z 21011KT 10SM FEW070 BKN100 BKN230 16/10 A2998 RMK AO2 SLP157 T01610100 $ |
| 2026-09-28 22:53 EDT | METAR | 15.6° | 10° | 4.1 | METAR KSEA 290253Z 22008KT 10SM FEW065 BKN110 BKN230 16/10 A2998 RMK AO2 SLP160 T01560100 55008 $ |
| 2026-09-28 23:53 EDT | METAR | 15° | 9.4° | 4.1 | METAR KSEA 290353Z 21008KT 10SM FEW060 OVC090 15/09 A3000 RMK AO2 SLP165 T01500094 $ |
| 2026-09-29 00:53 EDT | METAR | 15° | 10° | 5.1 | METAR KSEA 290453Z 20010KT 10SM FEW060 OVC100 15/10 A2998 RMK AO2 SLP160 T01500100 $ |
| 2026-09-29 01:53 EDT | METAR | 15° | 10° | 7.2 | METAR KSEA 290553Z 21014KT 10SM BKN065 BKN075 OVC090 15/10 A2998 RMK AO2 SLP157 VIRGA T01500100 10172 20150 58002 $ |
| 2026-09-29 02:53 EDT | METAR | 13.9° | 11.1° | 6.7 | METAR KSEA 290653Z 22013KT 10SM -RA FEW035 BKN050 OVC085 14/11 A2998 RMK AO2 RAB37 SLP159 P0000 T01390111 $ |
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/2026-09-28 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).