Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-09-28 · 2026-09-30 → · All dates for KSEA · JSON
METAR KSEA 291953Z 20013KT 10SM BKN024 BKN065 BKN090 17/13 A2992 RMK AO2 SLP137 T01720128 $
METAR KSEA 300153Z 03014KT 9SM SCT005 OVC013 12/11 A2998 RMK AO2 RAE46 SLP157 P0001 T01170106 $
Local day 2026-09-29 03:00 EDT → 2026-09-30 03:00 EDT (24 h, UTC-07:00) · 36 reports · longest gap 60 min
High 63°F (17.22°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 2026-09-30 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 272a1882be08d4f33653862293fae8063b8f43f735ddfaad740be5ea4d800695
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 36 · 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 |
|---|---|---|---|---|---|
| 2026-09-29 03:53 EDT | METAR | 12.8° | 11.1° | 7.7 | METAR KSEA 290753Z 20015KT 10SM SCT035 BKN045 OVC080 13/11 A2996 RMK AO2 RAE0654 SLP150 P0000 T01280111 401780078 $ |
| 2026-09-29 04:53 EDT | METAR | 13.9° | 10° | 5.7 | METAR KSEA 290853Z 19011KT 10SM SCT035 OVC100 14/10 A2994 RMK AO2 SLP144 60000 T01390100 58013 $ |
| 2026-09-29 05:26 EDT | SPECI | 14.4° | 9.4° | 5.1 | SPECI KSEA 290926Z 18010KT 10SM BKN026 OVC031 14/09 A2993 RMK AO2 T01440094 $ |
| 2026-09-29 05:53 EDT | METAR | 15° | 8.9° | 4.6 | METAR KSEA 290953Z 18009G18KT 10SM BKN024 OVC080 15/09 A2993 RMK AO2 SLP139 T01500089 $ |
| 2026-09-29 06:53 EDT | METAR | 15° | 10.6° | 5.7 | METAR KSEA 291053Z 20011KT 10SM OVC022 15/11 A2992 RMK AO2 SLP138 T01500106 $ |
| 2026-09-29 07:53 EDT | METAR | 15° | 11.1° | 7.2 | METAR KSEA 291153Z 20014G21KT 10SM OVC019 15/11 A2991 RMK AO2 SLP134 60000 T01500111 10150 20128 56010 $ |
| 2026-09-29 08:53 EDT | METAR | 15° | 11.1° | 7.7 | METAR KSEA 291253Z 20015KT 10SM BKN020 OVC026 15/11 A2989 RMK AO2 PK WND 19026/1226 SLP128 T01500111 $ |
| 2026-09-29 09:53 EDT | METAR | 15° | 11.1° | 7.2 | METAR KSEA 291353Z 20014G24KT 10SM BKN021 BKN026 OVC090 15/11 A2990 RMK AO2 SLP129 T01500111 $ |
| 2026-09-29 10:53 EDT | METAR | 14.4° | 11.7° | 5.7 | METAR KSEA 291453Z 20011KT 10SM FEW016 BKN021 BKN075 14/12 A2990 RMK AO2 SLP129 T01440117 55004 $ |
| 2026-09-29 11:53 EDT | METAR | 13.9° | 12.8° | 5.7 | METAR KSEA 291553Z 19011KT 6SM -RA BR BKN016 OVC021 14/13 A2991 RMK AO2 RAB37 SLP133 P0000 T01390128 $ |
| 2026-09-29 12:07 EDT | SPECI | 13.9° | 12.8° | 5.7 | SPECI KSEA 291607Z 19011KT 6SM -DZ BR BKN012 OVC020 14/13 A2989 RMK AO2 RAE01DZB07 P0000 T01390128 $ |
| 2026-09-29 12:53 EDT | METAR | 14.4° | 13.3° | 7.2 | METAR KSEA 291653Z 20014KT 10SM BKN011 OVC017 14/13 A2991 RMK AO2 RAE01DZB07E24 SLP133 P0000 T01440133 $ |
| 2026-09-29 13:53 EDT | METAR | 15° | 12.8° | 6.2 | METAR KSEA 291753Z 19012G21KT 10SM BKN010 OVC016 15/13 A2991 RMK AO2 SLP135 60000 T01500128 10156 20139 51006 $ |
| 2026-09-29 14:18 EDT | SPECI | 15.6° | 12.8° | 7.2 | SPECI KSEA 291818Z 21014KT 10SM SCT011 BKN016 OVC024 16/13 A2992 RMK AO2 T01560128 $ |
| 2026-09-29 14:48 EDT | SPECI | 16° | 13° | 7.2 | SPECI KSEA 291848Z 20014G23KT 10SM SCT020 BKN065 BKN110 16/13 A2991 RMK AO2 $ |
| 2026-09-29 14:53 EDT | METAR | 16.1° | 12.8° | 6.7 | METAR KSEA 291853Z 21013G22KT 10SM SCT020 BKN065 BKN110 16/13 A2992 RMK AO2 SLP135 T01610128 $ |
| 2026-09-29 15:14 EDT | SPECI | 16.7° | 12.8° | 6.7 | SPECI KSEA 291914Z 21013G21KT 10SM BKN025 BKN065 BKN095 17/13 A2992 RMK AO2 BKN025 V SCT T01670128 $ |
| 2026-09-29 15:53 EDT | METAR | 17.2°max | 12.8° | 6.7 | METAR KSEA 291953Z 20013KT 10SM BKN024 BKN065 BKN090 17/13 A2992 RMK AO2 SLP137 T01720128 $ |
| 2026-09-29 16:53 EDT | METAR | 17.2° | 13.3° | 8.2 | METAR KSEA 292053Z 22016KT 10SM FEW017 BKN022 BKN065 17/13 A2992 RMK AO2 SLP137 T01720133 52002 $ |
| 2026-09-29 17:53 EDT | METAR | 17.2° | 13.3° | 5.7 | METAR KSEA 292153Z 21011G20KT 10SM FEW016 BKN020 BKN030 17/13 A2991 RMK AO2 SLP135 T01720133 $ |
| 2026-09-29 18:37 EDT | SPECI | 16.7° | 13.3° | 7.7 | SPECI KSEA 292237Z 21015G21KT 10SM SCT017 OVC055 17/13 A2992 RMK AO2 T01670133 $ |
| 2026-09-29 18:53 EDT | METAR | 16.7° | 13.3° | 6.7 | METAR KSEA 292253Z 23013G21KT 10SM SCT017 OVC055 17/13 A2993 RMK AO2 SLP140 T01670133 $ |
| 2026-09-29 19:15 EDT | SPECI | 16.7° | 13.3° | 6.2 | SPECI KSEA 292315Z 23012G19KT 10SM BKN017 OVC050 17/13 A2993 RMK AO2 T01670133 $ |
| 2026-09-29 19:39 EDT | SPECI | 16.1° | 13.9° | 6.7 | SPECI KSEA 292339Z 23013G20KT 10SM BKN012 OVC016 16/14 A2994 RMK AO2 T01610139 $ |
| 2026-09-29 19:53 EDT | METAR | 16.1° | 13.9° | 6.7 | METAR KSEA 292353Z 23013G21KT 10SM BKN011 OVC017 16/14 A2994 RMK AO2 SLP144 T01610139 10172 20150 53007 $ |
| 2026-09-29 20:37 EDT | SPECI | 15.6° | 13.3° | 2.1 | SPECI KSEA 300037Z 31004KT 10SM BKN009 OVC016 16/13 A2996 RMK AO2 T01560133 $ |
| 2026-09-29 20:53 EDT | METAR | 14.4° | 12.2° | 5.7 | METAR KSEA 300053Z 02011KT 5SM -RA BR BKN007 OVC016 14/12 A2996 RMK AO2 RAB51 SLP151 P0000 T01440122 $ |
| 2026-09-29 21:14 EDT | SPECI | 13.3° | 12.2° | 5.7 | SPECI KSEA 300114Z 02011KT 3SM -RA BR BKN005 OVC008 13/12 A2996 RMK AO2 P0000 T01330122 $ |
| 2026-09-29 21:53 EDT | METAR | 11.7°min | 10.6° | 7.2 | METAR KSEA 300153Z 03014KT 9SM SCT005 OVC013 12/11 A2998 RMK AO2 RAE46 SLP157 P0001 T01170106 $ |
| 2026-09-29 22:53 EDT | METAR | 12.2° | 10° | 4.6 | METAR KSEA 300253Z 05009KT 10SM OVC014 12/10 A2999 RMK AO2 SLP162 60001 T01220100 51017 $ |
| 2026-09-29 23:09 EDT | SPECI | 12.8° | 9.4° | 4.6 | SPECI KSEA 300309Z 05009KT 10SM OVC017 13/09 A3000 RMK AO2 T01280094 $ |
| 2026-09-29 23:53 EDT | METAR | 12.8° | 9.4° | 5.7 | METAR KSEA 300353Z 06011KT 10SM OVC018 13/09 A3000 RMK AO2 SLP164 T01280094 $ |
| 2026-09-30 00:53 EDT | METAR | 13.3° | 8.9° | 4.6 | METAR KSEA 300453Z 06009KT 10SM OVC024 13/09 A3000 RMK AO2 SLP166 T01330089 $ |
| 2026-09-30 01:53 EDT | METAR | 13.9° | 8.9° | 2.1 | METAR KSEA 300553Z 07004KT 10SM OVC026 14/09 A3001 RMK AO2 SLP169 60001 T01390089 10161 20117 53007 $ |
| 2026-09-30 02:33 EDT | SPECI | 13.9° | 8.3° | 1.5 | SPECI KSEA 300633Z 04003KT 10SM BKN031 OVC038 14/08 A3003 RMK AO2 T01390083 $ |
| 2026-09-30 02:53 EDT | METAR | 13.9° | 8.3° | 1.5 | METAR KSEA 300653Z 07003KT 10SM OVC032 14/08 A3003 RMK AO2 SLP174 T01390083 $ |
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/2026-09-29 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).