Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-08 · 2026-10-10 → · All dates for KSEA · JSON
SPECI KSEA 091717Z 22011G19KT 10SM BKN016 BKN025 14/11 A2980 RMK AO2 T01440111
METAR KSEA 100553Z 09009KT 10SM BKN030 OVC050 11/06 A2983 RMK AO2 RAE10 SLP107 P0000 60000 T01060061 10128 20106 58002 $
Local day 2026-10-09 03:00 EDT → 2026-10-10 03:00 EDT (24 h, UTC-07:00) · 32 reports · longest gap 60 min
High 58°F (14.44°C) · Low 50°F (10°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 2026-10-10 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 f47fa00f6a557c1c3051266c485c531305018869f9a99e51265b0102bdfc6d2e
Transaction 0x18ebb5db348a195f0bc53b47bb3ff586ec3d057eae5a721f2fa9e7b82405225a · 2026-10-10 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 32 · 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 |
|---|---|---|---|---|---|
| 2026-10-09 03:53 EDT | METAR | 11.7° | 11.1° | 2.6 | METAR KSEA 090753Z 20005KT 10SM FEW030 SCT150 12/11 A2989 RMK AO2 SLP129 T01170111 401940106 |
| 2026-10-09 04:07 EDT | SPECI | 12.2° | 11.7° | 3.6 | SPECI KSEA 090807Z 22007KT 10SM BKN003 12/12 A2989 RMK AO2 T01220117 |
| 2026-10-09 04:18 EDT | SPECI | 12.2° | 11.7° | 2.6 | SPECI KSEA 090818Z 23005KT 1 1/2SM R16L/5000VP6000FT BR BKN003 12/12 A2989 RMK AO2 T01220117 |
| 2026-10-09 04:27 EDT | SPECI | 12.8° | 11.7° | 2.6 | SPECI KSEA 090827Z 24005KT 1/2SM R16L/P6000FT BR SCT002 BKN005 13/12 A2989 RMK AO2 SFC VIS 3 T01280117 |
| 2026-10-09 04:53 EDT | METAR | 12.8° | 12.2° | 3.1 | METAR KSEA 090853Z 18006KT 2SM BR BKN004 OVC010 13/12 A2988 RMK AO2 SFC VIS 6 SLP123 T01280122 58010 |
| 2026-10-09 05:53 EDT | METAR | 12.8° | 12.2° | 4.6 | METAR KSEA 090953Z 16009KT 2SM BR BKN004 OVC010 13/12 A2987 RMK AO2 SFC VIS 5 SLP121 T01280122 |
| 2026-10-09 06:53 EDT | METAR | 13.3° | 11.7° | 5.7 | METAR KSEA 091053Z 18011KT 10SM SCT004 OVC012 13/12 A2985 RMK AO2 RAB13E45 SLP112 P0001 T01330117 |
| 2026-10-09 07:53 EDT | METAR | 13.9° | 11.7° | 6.2 | METAR KSEA 091153Z 19012G20KT 10SM OVC013 14/12 A2982 RMK AO2 SLP102 60001 70001 T01390117 10139 20117 58020 |
| 2026-10-09 08:53 EDT | METAR | 13.9° | 12.2° | 6.7 | METAR KSEA 091253Z 20013G20KT 10SM OVC012 14/12 A2981 RMK AO2 SLP098 T01390122 |
| 2026-10-09 09:53 EDT | METAR | 13.9° | 12.2° | 6.7 | METAR KSEA 091353Z 19013G21KT 10SM SCT008 OVC011 14/12 A2980 RMK AO2 SLP096 T01390122 |
| 2026-10-09 10:08 EDT | SPECI | 13.9° | 12.2° | 8.2 | SPECI KSEA 091408Z 19016G24KT 6SM -RA BR OVC010 14/12 A2979 RMK AO2 RAB07 CIG 008V012 P0000 T01390122 |
| 2026-10-09 10:53 EDT | METAR | 13.9° | 12.2° | 6.2 | METAR KSEA 091453Z 18012G24KT 10SM SCT008 OVC013 14/12 A2979 RMK AO2 RAB07E23 SLP093 P0000 60000 T01390122 56009 |
| 2026-10-09 11:53 EDT | METAR | 13.9° | 12.8° | 5.7 | METAR KSEA 091553Z 18011G18KT 7SM -RA FEW006 BKN010 OVC015 14/13 A2979 RMK AO2 RAB16 SLP094 P0000 T01390128 |
| 2026-10-09 12:53 EDT | METAR | 13.9° | 11.7° | 6.2 | METAR KSEA 091653Z 22012G22KT 10SM BKN012 BKN017 14/12 A2979 RMK AO2 RAE1558 SLP094 P0000 T01390117 |
| 2026-10-09 13:17 EDT | SPECI | 14.4°max | 11.1° | 5.7 | SPECI KSEA 091717Z 22011G19KT 10SM BKN016 BKN025 14/11 A2980 RMK AO2 T01440111 |
| 2026-10-09 13:53 EDT | METAR | 14.4° | 11.1° | 5.7 | METAR KSEA 091753Z 19011KT 10SM BKN019 BKN023 14/11 A2981 RMK AO2 SLP099 60000 T01440111 10144 20139 53005 |
| 2026-10-09 14:53 EDT | METAR | 14.4° | 10° | 6.7 | METAR KSEA 091853Z COR 21013KT 10SM -RA FEW010 BKN019 BKN024 14/10 A2981 RMK AO2 RAB33 SLP101 P0000 T01440100 |
| 2026-10-09 15:17 EDT | SPECI | 14.4° | 9.4° | 5.7 | SPECI KSEA 091917Z 21011KT 5SM -RA BR FEW008 BKN019 BKN023 14/09 A2981 RMK AO2 VIS NW-NE 3 P0000 T01440094 |
| 2026-10-09 15:53 EDT | METAR | 14.4° | 8.3° | 6.2 | METAR KSEA 091953Z 20012G19KT 9SM FEW007 BKN019 BKN023 14/08 A2982 RMK AO2 RAE37 SLP104 VIRGA S SHRA NW-NE P0000 T01440083 |
| 2026-10-09 16:13 EDT | SPECI | 13.3° | 9.4° | 3.1 | SPECI KSEA 092013Z 01006KT 8SM -RA FEW007 SCT017 BKN025 13/09 A2982 RMK AO2 RAB11 P0000 T01330094 |
| 2026-10-09 16:53 EDT | METAR | 12.2° | 10.6° | 5.1 | METAR KSEA 092053Z 04010KT 8SM FEW005 SCT017 BKN028 12/11 A2983 RMK AO2 RAB11E41 SLP106 P0000 60000 T01220106 53006 |
| 2026-10-09 17:19 EDT | SPECI | 12.8° | 10.6° | 6.7 | SPECI KSEA 092119Z 05013KT 10SM FEW010 SCT020 BKN034 13/11 A2983 RMK AO2 T01280106 |
| 2026-10-09 17:53 EDT | METAR | 12.8° | 9.4° | 7.2 | METAR KSEA 092153Z 05014KT 10SM FEW010 SCT026 BKN044 13/09 A2983 RMK AO2 SLP108 T01280094 |
| 2026-10-09 18:53 EDT | METAR | 11.7° | 7.2° | 5.7 | METAR KSEA 092253Z 03011KT 10SM FEW012 FEW030 BKN050 12/07 A2984 RMK AO2 SLP110 T01170072 |
| 2026-10-09 19:53 EDT | METAR | 12.8° | 6.7° | 7.7 | METAR KSEA 092353Z 04015KT 10SM FEW038 BKN060 13/07 A2984 RMK AO2 SLP111 60000 T01280067 10144 20117 51005 |
| 2026-10-09 20:53 EDT | METAR | 12.2° | 6.1° | 5.1 | METAR KSEA 100053Z 06010KT 10SM FEW046 BKN055 BKN065 12/06 A2983 RMK AO2 SLP109 T01220061 |
| 2026-10-09 21:53 EDT | METAR | 12.2° | 6.7° | 2.6 | METAR KSEA 100153Z 07005KT 10SM FEW050 BKN065 12/07 A2983 RMK AO2 SLP107 T01220067 $ |
| 2026-10-09 22:53 EDT | METAR | 11.7° | 5.6° | 3.6 | METAR KSEA 100253Z 12007KT 10SM BKN042 OVC050 12/06 A2984 RMK AO2 SLP109 T01170056 55001 $ |
| 2026-10-09 23:53 EDT | METAR | 11.7° | 6.1° | 4.6 | METAR KSEA 100353Z 08009KT 10SM FEW036 OVC040 12/06 A2984 RMK AO2 SLP109 T01170061 $ |
| 2026-10-10 00:53 EDT | METAR | 11.1° | 6.1° | 4.1 | METAR KSEA 100453Z 09008KT 10SM -RA OVC038 11/06 A2984 RMK AO2 RAB37 SLP109 P0000 T01110061 $ |
| 2026-10-10 01:53 EDT | METAR | 10.6°min | 6.1° | 4.6 | METAR KSEA 100553Z 09009KT 10SM BKN030 OVC050 11/06 A2983 RMK AO2 RAE10 SLP107 P0000 60000 T01060061 10128 20106 58002 $ |
| 2026-10-10 02:53 EDT | METAR | 10.6° | 6.1° | 3.1 | METAR KSEA 100653Z 10006KT 10SM BKN030 OVC040 11/06 A2983 RMK AO2 SLP107 T01060061 $ |
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/2026-10-09 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).