Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-26 · 2026-10-28 → · All dates for KSEA · JSON
METAR KSEA 272153Z 20012G20KT 10SM FEW020 BKN055 BKN120 13/07 A2996 RMK AO2 SLP151 T01330067
METAR KSEA 280653Z 17013KT 10SM SCT023 BKN036 OVC044 08/06 A2988 RMK AO2 RAE04B24E51 SLP126 P0000 T00830061 $
Local day 2026-10-27 03:00 EDT → 2026-10-28 03:00 EDT (24 h, UTC-07:00) · 35 reports · longest gap 60 min
High 57°F (13.89°C) · Low 47°F (8.33°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 2026-10-28 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 da530be6db51bd820b28ddf2b12de283b5c5b5cacdac03ecd763d405afd8a588
Transaction 0x42885942905a25b19717f8fc7857efc220f596fecdf3bd9f5122cee821bb6876 · 2026-11-05 16:01 EST
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 35 · 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 |
|---|---|---|---|---|---|
| 2026-10-27 03:50 EDT | SPECI | 11° | 9° | 2.1 | SPECI KSEA 270750Z 17004KT 10SM FEW014 SCT033 OVC070 11/09 A2999 RMK AO2 |
| 2026-10-27 03:53 EDT | METAR | 10.6° | 8.9° | 2.1 | METAR KSEA 270753Z 18004KT 10SM FEW014 SCT033 OVC070 11/09 A2999 RMK AO2 SLP161 T01060089 401440094 |
| 2026-10-27 04:11 EDT | SPECI | 10.6° | 8.9° | 2.1 | SPECI KSEA 270811Z 16004KT 10SM BKN008 BKN016 OVC065 11/09 A2999 RMK AO2 T01060089 |
| 2026-10-27 04:21 EDT | SPECI | 10.6° | 9.4° | 2.1 | SPECI KSEA 270821Z 18004KT 10SM SCT008 BKN013 OVC065 11/09 A2999 RMK AO2 T01060094 |
| 2026-10-27 04:53 EDT | METAR | 10.6° | 9.4° | 2.1 | METAR KSEA 270853Z 17004KT 10SM SCT008 BKN013 OVC065 11/09 A2999 RMK AO2 SLP161 T01060094 52001 |
| 2026-10-27 05:34 EDT | SPECI | 10.6° | 9.4° | 2.1 | SPECI KSEA 270934Z 20004KT 10SM BKN007 OVC012 11/09 A2999 RMK AO2 T01060094 |
| 2026-10-27 05:53 EDT | METAR | 10.6° | 9.4° | 2.1 | METAR KSEA 270953Z 22004KT 10SM OVC007 11/09 A2999 RMK AO2 SLP162 T01060094 |
| 2026-10-27 06:53 EDT | METAR | 10.6° | 9.4° | 2.1 | METAR KSEA 271053Z 24004KT 10SM BKN006 BKN010 OVC015 11/09 A2999 RMK AO2 RAB29E38 SLP162 P0000 T01060094 |
| 2026-10-27 07:53 EDT | METAR | 10° | 8.9° | 3.1 | METAR KSEA 271153Z 25006KT 10SM SCT005 BKN010 OVC031 10/09 A2998 RMK AO2 RAB03E39 SLP158 P0000 60000 70003 T01000089 10106 20100 58003 |
| 2026-10-27 08:53 EDT | METAR | 10° | 8.9° | 1.5 | METAR KSEA 271253Z 24003KT 10SM FEW005 BKN010 OVC031 10/09 A2998 RMK AO2 SLP157 T01000089 |
| 2026-10-27 09:53 EDT | METAR | 10° | 8.9° | 3.1 | METAR KSEA 271353Z 23006KT 10SM FEW007 BKN012 OVC031 10/09 A2998 RMK AO2 SLP157 T01000089 |
| 2026-10-27 10:53 EDT | METAR | 9.4° | 8.3° | 2.6 | METAR KSEA 271453Z 26005KT 10SM SCT006 BKN011 OVC016 09/08 A2998 RMK AO2 SLP160 SCT006 V BKN T00940083 53001 |
| 2026-10-27 11:53 EDT | METAR | 10° | 8.3° | 2.6 | METAR KSEA 271553Z 25005KT 10SM SCT006 BKN013 BKN037 10/08 A2999 RMK AO2 SLP163 T01000083 |
| 2026-10-27 12:31 EDT | SPECI | 10° | 8.9° | 3.1 | SPECI KSEA 271631Z 23006KT 9SM FEW009 BKN016 BKN039 10/09 A2999 RMK AO2 CIG 013V019 T01000089 |
| 2026-10-27 12:53 EDT | METAR | 10.6° | 8.3° | 3.6 | METAR KSEA 271653Z 22007KT 10SM SCT007 BKN015 BKN039 11/08 A2999 RMK AO2 SLP163 CIG 012V018 T01060083 |
| 2026-10-27 13:18 EDT | SPECI | 10.6° | 8.3° | 3.1 | SPECI KSEA 271718Z 23006KT 10SM FEW007 BKN012 11/08 A3000 RMK AO2 T01060083 |
| 2026-10-27 13:53 EDT | METAR | 10.6° | 8.3° | 4.6 | METAR KSEA 271753Z 24009KT 10SM SCT008 BKN012 OVC024 11/08 A2999 RMK AO2 SLP164 T01060083 10106 20094 51004 |
| 2026-10-27 14:53 EDT | METAR | 10° | 7.2° | 6.2 | METAR KSEA 271853Z 22012G18KT 10SM SCT008 BKN013 OVC024 10/07 A3000 RMK AO2 SLP166 T01000072 |
| 2026-10-27 15:33 EDT | SPECI | 10.6° | 7.8° | 5.1 | SPECI KSEA 271933Z 20010KT 10SM FEW012 BKN017 BKN024 11/08 A2999 RMK AO2 T01060078 |
| 2026-10-27 15:53 EDT | METAR | 11.1° | 8.3° | 4.6 | METAR KSEA 271953Z 20009KT 10SM FEW012 BKN017 BKN024 11/08 A2999 RMK AO2 SLP160 T01110083 |
| 2026-10-27 16:32 EDT | SPECI | 11.7° | 6.7° | 6.2 | SPECI KSEA 272032Z 22012KT 10SM FEW017 SCT021 BKN055 12/07 A2997 RMK AO2 T01170067 |
| 2026-10-27 16:53 EDT | METAR | 12.2° | 6.7° | 6.2 | METAR KSEA 272053Z 22012KT 10SM FEW017 SCT024 BKN055 12/07 A2997 RMK AO2 SLP155 T01220067 58008 |
| 2026-10-27 17:53 EDT | METAR | 13.3°max | 6.7° | 6.2 | METAR KSEA 272153Z 20012G20KT 10SM FEW020 BKN055 BKN120 13/07 A2996 RMK AO2 SLP151 T01330067 |
| 2026-10-27 18:53 EDT | METAR | 12.8° | 7.2° | 7.2 | METAR KSEA 272253Z 19014G23KT 10SM FEW020 BKN055 BKN100 13/07 A2995 RMK AO2 SLP148 T01280072 |
| 2026-10-27 19:53 EDT | METAR | 12.2° | 7.2° | 5.1 | METAR KSEA 272353Z 20010G19KT 10SM FEW025 BKN065 BKN090 12/07 A2994 RMK AO2 SLP144 T01220072 10139 20100 56010 |
| 2026-10-27 20:43 EDT | SPECI | 11.1° | 6.7° | 7.7 | SPECI KSEA 280043Z 22015G23KT 10SM -RA FEW020 BKN026 BKN048 11/07 A2993 RMK AO2 RAB33 P0000 T01110067 |
| 2026-10-27 20:53 EDT | METAR | 11.1° | 6.1° | 8.2 | METAR KSEA 280053Z 22016G23KT 10SM SCT020 BKN048 OVC080 11/06 A2993 RMK AO2 RAB33E45 SLP143 P0000 T01110061 |
| 2026-10-27 21:53 EDT | METAR | 10.6° | 6.1° | 7.7 | METAR KSEA 280153Z 21015G24KT 10SM FEW060 SCT085 BKN110 11/06 A2992 RMK AO2 SLP140 T01060061 |
| 2026-10-27 22:53 EDT | METAR | 10° | 5.6° | 8.7 | METAR KSEA 280253Z 20017KT 10SM SCT026 BKN031 BKN110 10/06 A2992 RMK AO2 PK WND 21026/0207 SLP140 60000 T01000056 56005 |
| 2026-10-27 23:00 EDT | SPECI | 10° | 5.6° | 7.7 | SPECI KSEA 280300Z 20015G22KT 10SM BKN027 BKN032 OVC110 10/06 A2992 RMK AO2 T01000056 |
| 2026-10-27 23:53 EDT | METAR | 10° | 5.6° | 6.2 | METAR KSEA 280353Z 20012G19KT 10SM BKN023 OVC028 10/06 A2992 RMK AO2 PK WND 19026/0334 SLP140 T01000056 |
| 2026-10-28 00:53 EDT | METAR | 10° | 5.6° | 7.7 | METAR KSEA 280453Z 20015G23KT 10SM SCT023 BKN029 OVC065 10/06 A2992 RMK AO2 SLP139 T01000056 $ |
| 2026-10-28 01:39 EDT | SPECI | 9.4° | 5.6° | 5.7 | SPECI KSEA 280539Z 18011KT 10SM -RA FEW029 OVC040 09/06 A2991 RMK AO2 RAB29 P0000 T00940056 $ |
| 2026-10-28 01:53 EDT | METAR | 9.4° | 5.6° | 5.1 | METAR KSEA 280553Z 18010G17KT 10SM -RA BKN025 BKN040 OVC047 09/06 A2990 RMK AO2 RAB29 SLP133 P0000 60000 T00940056 10122 20094 58006 $ |
| 2026-10-28 02:53 EDT | METAR | 8.3°min | 6.1° | 6.7 | METAR KSEA 280653Z 17013KT 10SM SCT023 BKN036 OVC044 08/06 A2988 RMK AO2 RAE04B24E51 SLP126 P0000 T00830061 $ |
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/2026-10-27 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).