Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-09-29 · 2026-10-01 → · All dates for KSEA · JSON
METAR KSEA 302253Z 35007KT 10SM FEW020 FEW040 SCT230 18/08 A3009 RMK AO2 SLP196 T01780083 $
METAR KSEA 301253Z 06004KT 10SM FEW010 FEW055 SCT250 10/08 A3009 RMK AO2 SLP194 T01000078 $
Local day 2026-09-30 03:00 EDT → 2026-10-01 03:00 EDT (24 h, UTC-07:00) · 26 reports · longest gap 60 min
High 65°F (18.33°C) · Low 49°F (9.44°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 2026-10-01 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 85dadde315af8fadfeafdd79578cb6266ad9d0e3a17a59a0dc3b9ebd7e8f4d55
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 26 · 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 |
|---|---|---|---|---|---|
| 2026-09-30 03:53 EDT | METAR | 13.9° | 7.8° | 3.1 | METAR KSEA 300753Z 04006KT 10SM OVC035 14/08 A3004 RMK AO2 SLP179 T01390078 401720117 $ |
| 2026-09-30 04:53 EDT | METAR | 13.9° | 6.7° | 2.6 | METAR KSEA 300853Z 05005KT 10SM BKN048 14/07 A3005 RMK AO2 SLP181 T01390067 51012 $ |
| 2026-09-30 05:53 EDT | METAR | 13.3° | 5.6° | 4.6 | METAR KSEA 300953Z 03009KT 10SM SCT055 13/06 A3005 RMK AO2 SLP183 T01330056 $ |
| 2026-09-30 06:53 EDT | METAR | 10.6° | 7.2° | 1.5 | METAR KSEA 301053Z 34003KT 10SM SCT055 11/07 A3007 RMK AO2 SLP189 T01060072 $ |
| 2026-09-30 07:53 EDT | METAR | 10.6° | 8.3° | 1.5 | METAR KSEA 301153Z 33003KT 10SM FEW010 FEW055 FEW250 11/08 A3008 RMK AO2 SLP192 70001 T01060083 10139 20100 53010 $ |
| 2026-09-30 08:53 EDT | METAR | 10°min | 7.8° | 2.1 | METAR KSEA 301253Z 06004KT 10SM FEW010 FEW055 SCT250 10/08 A3009 RMK AO2 SLP194 T01000078 $ |
| 2026-09-30 09:53 EDT | METAR | 10.6° | 7.2° | 2.6 | METAR KSEA 301353Z 04005KT 10SM FEW010 FEW055 SCT250 11/07 A3010 RMK AO2 SLP198 T01060072 $ |
| 2026-09-30 10:53 EDT | METAR | 11.1° | 7.8° | 4.6 | METAR KSEA 301453Z 03009KT 10SM FEW010 SCT055 BKN250 11/08 A3011 RMK AO2 SLP203 T01110078 53011 $ |
| 2026-09-30 11:53 EDT | METAR | 12.2° | 8.3° | 4.1 | METAR KSEA 301553Z 01008KT 10SM FEW015 FEW060 SCT140 SCT250 12/08 A3014 RMK AO2 SLP211 T01220083 $ |
| 2026-09-30 12:53 EDT | METAR | 13.3° | 8.9° | 3.6 | METAR KSEA 301653Z 03007KT 10SM SCT015 SCT140 BKN250 13/09 A3014 RMK AO2 SLP212 SCT015 V BKN T01330089 $ |
| 2026-09-30 13:01 EDT | SPECI | 13.3° | 8.9° | 3.6 | SPECI KSEA 301701Z 36007KT 10SM BKN013 BKN140 BKN250 13/09 A3015 RMK AO2 T01330089 $ |
| 2026-09-30 13:53 EDT | METAR | 13.3° | 8.9° | 4.1 | METAR KSEA 301753Z 04008KT 10SM BKN014 BKN140 BKN250 13/09 A3014 RMK AO2 SLP212 T01330089 10139 20094 51008 $ |
| 2026-09-30 14:12 EDT | SPECI | 14.4° | 9.4° | 4.6 | SPECI KSEA 301812Z 01009KT 10SM SCT014 SCT140 BKN250 14/09 A3014 RMK AO2 SCT014 V BKN T01440094 $ |
| 2026-09-30 14:53 EDT | METAR | 15.6° | 10° | 3.1 | METAR KSEA 301853Z VRB06KT 10SM SCT016 SCT250 16/10 A3014 RMK AO2 SLP210 T01560100 $ |
| 2026-09-30 15:53 EDT | METAR | 16.1° | 9.4° | 3.1 | METAR KSEA 301953Z 35006KT 10SM FEW020 FEW250 16/09 A3014 RMK AO2 SLP210 T01610094 $ |
| 2026-09-30 16:53 EDT | METAR | 17.2° | 8.9° | 4.6 | METAR KSEA 302053Z 36009KT 10SM FEW023 FEW250 17/09 A3014 RMK AO2 SLP211 T01720089 55000 $ |
| 2026-09-30 17:53 EDT | METAR | 17.2° | 8.9° | 3.6 | METAR KSEA 302153Z 35007KT 10SM FEW026 FEW040 SCT230 17/09 A3011 RMK AO2 SLP201 T01720089 $ |
| 2026-09-30 18:53 EDT | METAR | 17.8°max | 8.3° | 3.6 | METAR KSEA 302253Z 35007KT 10SM FEW020 FEW040 SCT230 18/08 A3009 RMK AO2 SLP196 T01780083 $ |
| 2026-09-30 19:53 EDT | METAR | 17.8° | 8.9° | 3.1 | METAR KSEA 302353Z 34006KT 10SM FEW040 FEW170 SCT230 18/09 A3008 RMK AO2 SLP192 T01780089 10183 20133 56019 $ |
| 2026-09-30 20:53 EDT | METAR | 16.7° | 9.4° | 3.1 | METAR KSEA 010053Z 34006KT 10SM FEW040 SCT170 BKN230 17/09 A3008 RMK AO2 SLP193 T01670094 $ |
| 2026-09-30 21:53 EDT | METAR | 14.4° | 8.3° | 3.1 | METAR KSEA 010153Z 34006KT 10SM FEW040 FEW110 SCT170 BKN230 14/08 A3009 RMK AO2 SLP194 ACSL DSNT SE T01440083 $ |
| 2026-09-30 22:53 EDT | METAR | 12.8° | 8.9° | 3.6 | METAR KSEA 010253Z 36007KT 10SM FEW040 SCT100 SCT160 BKN230 13/09 A3009 RMK AO2 SLP196 T01280089 53003 $ |
| 2026-09-30 23:53 EDT | METAR | 11.7° | 8.3° | 2.1 | METAR KSEA 010353Z 33004KT 10SM FEW100 FEW160 SCT230 12/08 A3010 RMK AO2 SLP198 T01170083 $ |
| 2026-10-01 00:53 EDT | METAR | 12.8° | 8.9° | 4.1 | METAR KSEA 010453Z 02008KT 10SM BKN120 BKN200 13/09 A3009 RMK AO2 SLP196 T01280089 $ |
| 2026-10-01 01:53 EDT | METAR | 12.2° | 8.9° | 3.6 | METAR KSEA 010553Z 36007KT 10SM SCT120 SCT200 12/09 A3010 RMK AO2 SLP198 T01220089 10178 20117 52002 $ |
| 2026-10-01 02:53 EDT | METAR | 12.8° | 9.4° | 4.6 | METAR KSEA 010653Z 03009KT 10SM BKN170 OVC200 13/09 A3009 RMK AO2 SLP196 T01280094 $ |
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/2026-09-30 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).