Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-09 · 2026-10-11 → · All dates for KSEA · JSON
METAR KSEA 102253Z 33011KT 10SM SCT030 SCT060 SCT120 14/05 A2985 RMK AO2 SLP114 T01390050
METAR KSEA 100953Z 15007KT 10SM SCT020 BKN030 OVC055 09/07 A2981 RMK AO2 RAB0854E44 SLP102 P0000 T00890067 $
Local day 2026-10-10 03:00 EDT → 2026-10-11 03:00 EDT (24 h, UTC-07:00) · 33 reports · longest gap 60 min
High 58°F (14.44°C) · Low 45°F (7.22°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 2026-10-11 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 84b70f93491a55f09eb80aec258f306f9784d5a5e29e47dad1c370f7233f733c
Transaction 0x093dce1f1a4611ad5fbe36c89090c2fbad8538c37e00f1b1086c209be5dc26d4 · 2026-10-11 06:02 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 33 · 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 |
|---|---|---|---|---|---|
| 2026-10-10 03:21 EDT | SPECI | 10.6° | 6.1° | 3.1 | SPECI KSEA 100721Z 10006KT 10SM BKN025 OVC040 11/06 A2983 RMK AO2 T01060061 $ |
| 2026-10-10 03:53 EDT | METAR | 10° | 6.1° | 4.1 | METAR KSEA 100753Z 12008KT 10SM BKN027 OVC040 10/06 A2982 RMK AO2 SLP105 T01000061 401440100 $ |
| 2026-10-10 04:53 EDT | METAR | 9.4° | 6.1° | 4.6 | METAR KSEA 100853Z 14009KT 10SM BKN025 BKN050 OVC070 09/06 A2982 RMK AO2 SLP104 T00940061 58003 $ |
| 2026-10-10 05:53 EDT | METAR | 8.9°min | 6.7° | 3.6 | METAR KSEA 100953Z 15007KT 10SM SCT020 BKN030 OVC055 09/07 A2981 RMK AO2 RAB0854E44 SLP102 P0000 T00890067 $ |
| 2026-10-10 06:24 EDT | SPECI | 8.9° | 7.2° | 3.6 | SPECI KSEA 101024Z 15007KT 10SM BKN025 BKN040 OVC060 09/07 A2981 RMK AO2 T00890072 $ |
| 2026-10-10 06:53 EDT | METAR | 9.4° | 6.7° | 2.1 | METAR KSEA 101053Z 17004KT 10SM FEW010 BKN025 OVC040 09/07 A2981 RMK AO2 SLP103 T00940067 $ |
| 2026-10-10 07:53 EDT | METAR | 9.4° | 6.7° | 2.6 | METAR KSEA 101153Z 16005KT 10SM FEW010 BKN025 OVC040 09/07 A2981 RMK AO2 SLP099 60000 T00940067 10106 20089 58005 $ |
| 2026-10-10 08:53 EDT | METAR | 8.9° | 6.1° | 1.5 | METAR KSEA 101253Z 18003KT 10SM SCT013 BKN029 OVC080 09/06 A2981 RMK AO2 SLP102 T00890061 $ |
| 2026-10-10 09:10 EDT | SPECI | 8.9° | 6.1° | 2.1 | SPECI KSEA 101310Z 16004KT 10SM BKN013 OVC029 09/06 A2981 RMK AO2 T00890061 $ |
| 2026-10-10 09:53 EDT | METAR | 8.9° | 6.1° | 2.1 | METAR KSEA 101353Z 17004KT 10SM BKN012 BKN037 OVC060 09/06 A2982 RMK AO2 SLP105 T00890061 $ |
| 2026-10-10 10:53 EDT | METAR | 8.9° | 6.1° | 0 | METAR KSEA 101453Z 00000KT 10SM OVC011 09/06 A2983 RMK AO2 SLP109 T00890061 53009 $ |
| 2026-10-10 11:53 EDT | METAR | 8.9° | 6.7° | 0 | METAR KSEA 101553Z 00000KT 10SM SCT011 BKN055 09/07 A2984 RMK AO2 SLP113 T00890067 $ |
| 2026-10-10 12:53 EDT | METAR | 9.4° | 6.7° | 1.5 | METAR KSEA 101653Z 21003KT 10SM BKN013 BKN055 09/07 A2985 RMK AO2 SLP115 T00940067 $ |
| 2026-10-10 13:53 EDT | METAR | 11.1° | 6.1° | 1.5 | METAR KSEA 101753Z 12003KT 10SM BKN015 11/06 A2985 RMK AO2 SLP114 T01110061 10122 20083 50006 |
| 2026-10-10 14:24 EDT | SPECI | 11.7° | 6.1° | 1.5 | SPECI KSEA 101824Z VRB03KT 10SM FEW015 BKN047 BKN055 12/06 A2985 RMK AO2 T01170061 |
| 2026-10-10 14:53 EDT | METAR | 10.6° | 7.2° | 2.6 | METAR KSEA 101853Z 29005KT 10SM FEW034 FEW041 OVC060 11/07 A2986 RMK AO2 SLP117 T01060072 |
| 2026-10-10 15:37 EDT | SPECI | 11.7° | 8.3° | 2.6 | SPECI KSEA 101937Z 28005KT 10SM -RA SCT022 BKN027 BKN060 12/08 A2986 RMK AO2 RAB34 P0000 T01170083 |
| 2026-10-10 15:53 EDT | METAR | 10° | 7.8° | 2.6 | METAR KSEA 101953Z 30005KT 10SM FEW019 SCT024 BKN050 10/08 A2986 RMK AO2 RAB34E43 SLP117 P0000 T01000078 |
| 2026-10-10 16:53 EDT | METAR | 12.2° | 7.8° | 3.1 | METAR KSEA 102053Z 28006KT 10SM SCT025 BKN040 BKN060 12/08 A2985 RMK AO2 SLP115 60000 T01220078 50000 |
| 2026-10-10 17:53 EDT | METAR | 13.3° | 6.1° | 2.1 | METAR KSEA 102153Z VRB04KT 10SM SCT025 SCT040 BKN060 13/06 A2985 RMK AO2 SLP114 T01330061 |
| 2026-10-10 18:53 EDT | METAR | 13.9°max | 5° | 5.7 | METAR KSEA 102253Z 33011KT 10SM SCT030 SCT060 SCT120 14/05 A2985 RMK AO2 SLP114 T01390050 |
| 2026-10-10 19:53 EDT | METAR | 13.3° | 4.4° | 5.1 | METAR KSEA 102353Z 35010KT 10SM FEW030 SCT060 SCT120 13/04 A2986 RMK AO2 SLP116 60000 T01330044 10144 20100 53001 |
| 2026-10-10 20:53 EDT | METAR | 12.2° | 4.4° | 7.2 | METAR KSEA 110053Z 35014KT 10SM FEW030 SCT060 SCT120 12/04 A2987 RMK AO2 SLP120 CB DSNT N T01220044 |
| 2026-10-10 21:36 EDT | SPECI | 11.7° | 5.6° | 4.1 | SPECI KSEA 110136Z 04008KT 9SM -RA SCT020 BKN028 BKN110 12/06 A2988 RMK AO2 RAB33 CB DSNT NE P0000 T01170056 |
| 2026-10-10 21:53 EDT | METAR | 10° | 7.8° | 4.1 | METAR KSEA 110153Z 01008KT 5SM -RA BR BKN025CB BKN035 BKN050 10/08 A2988 RMK AO2 RAB33 SLP127 CB NE-E P0003 T01000078 |
| 2026-10-10 22:16 EDT | SPECI | 10.6° | 7.2° | 3.6 | SPECI KSEA 110216Z 05007KT 10SM FEW025 SCT035 BKN050 11/07 A2989 RMK AO2 RAE09 CB DSNT E P0002 T01060072 |
| 2026-10-10 22:53 EDT | METAR | 10.6° | 7.2° | 3.6 | METAR KSEA 110253Z 06007KT 10SM FEW025 BKN030 BKN065 11/07 A2990 RMK AO2 RAE09 SLP131 P0002 60005 T01060072 53014 |
| 2026-10-10 23:45 EDT | SPECI | 10° | 6.7° | 2.6 | SPECI KSEA 110345Z 08005KT 10SM BKN025 BKN065 10/07 A2990 RMK AO2 T01000067 |
| 2026-10-10 23:53 EDT | METAR | 10° | 7.2° | 2.1 | METAR KSEA 110353Z 07004KT 10SM BKN025 BKN065 10/07 A2990 RMK AO2 SLP134 T01000072 |
| 2026-10-11 00:24 EDT | SPECI | 10° | 7.2° | 2.6 | SPECI KSEA 110424Z 07005KT 10SM SCT025 BKN065 10/07 A2991 RMK AO2 T01000072 |
| 2026-10-11 00:53 EDT | METAR | 10° | 7.2° | 3.1 | METAR KSEA 110453Z 07006KT 10SM FEW025 SCT065 10/07 A2991 RMK AO2 SLP134 T01000072 |
| 2026-10-11 01:53 EDT | METAR | 8.9° | 6.7° | 1.5 | METAR KSEA 110553Z 03003KT 10SM FEW025 09/07 A2990 RMK AO2 SLP133 60005 T00890067 10133 20089 50001 |
| 2026-10-11 02:53 EDT | METAR | 8.9° | 6.7° | 2.6 | METAR KSEA 110653Z 08005KT 10SM FEW025 09/07 A2991 RMK AO2 SLP134 T00890067 |
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/2026-10-10 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).