Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-16 · 2026-10-18 → · All dates for KSEA · JSON
METAR KSEA 172153Z 04010KT 10SM FEW030 SCT040 BKN250 17/08 A3023 RMK AO2 SLP244 T01670078
METAR KSEA 180653Z 03004KT 10SM CLR 10/06 A3025 RMK AO2 SLP248 T01000061
Local day 2026-10-17 03:00 EDT → 2026-10-18 03:00 EDT (24 h, UTC-07:00) · 30 reports · longest gap 60 min
High 62°F (16.67°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 2026-10-18 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 32adf04fe49ef73b5c8ce0522ff85f22946362dcd0c25211dea2b00861c626db
Transaction 0x79f4317cdb21697be032b6b8f7bab865e3aaf612ff064d0548f468a2db4fde16 · 2026-10-18 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 30 · 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 |
|---|---|---|---|---|---|
| 2026-10-17 03:53 EDT | METAR | 15° | 8.3° | 4.6 | METAR KSEA 170753Z 17009KT 10SM SCT120 OVC250 15/08 A3005 RMK AO2 SLP181 T01500083 402500078 |
| 2026-10-17 04:53 EDT | METAR | 15° | 9.4° | 4.1 | METAR KSEA 170853Z 17008KT 10SM BKN120 OVC150 15/09 A3006 RMK AO2 SLP185 T01500094 53008 |
| 2026-10-17 05:53 EDT | METAR | 15° | 10.6° | 4.6 | METAR KSEA 170953Z 18009KT 10SM SCT036 BKN065 OVC080 15/11 A3006 RMK AO2 SLP184 T01500106 |
| 2026-10-17 06:10 EDT | SPECI | 15° | 10.6° | 5.1 | SPECI KSEA 171010Z 20010KT 7SM -RA BKN024 BKN035 OVC070 15/11 A3006 RMK AO2 RAB08 P0000 T01500106 |
| 2026-10-17 06:43 EDT | SPECI | 13.3° | 12.2° | 5.7 | SPECI KSEA 171043Z 20011KT 5SM BR SCT006 BKN012 OVC019 13/12 A3007 RMK AO2 RAB08E41 SCT V BKN P0001 T01330122 |
| 2026-10-17 06:53 EDT | METAR | 13.3° | 12.2° | 7.2 | METAR KSEA 171053Z 19014G21KT 6SM -RA BR SCT006 BKN011 OVC017 13/12 A3006 RMK AO2 RAB08E41B50 SLP185 SCT V BKN P0001 T01330122 |
| 2026-10-17 07:11 EDT | SPECI | 13.3° | 12.2° | 6.7 | SPECI KSEA 171111Z 19013G22KT 10SM BKN006 BKN011 OVC017 13/12 A3007 RMK AO2 RAE06 BKN006 V SCT P0001 T01330122 |
| 2026-10-17 07:53 EDT | METAR | 13.3° | 12.2° | 6.2 | METAR KSEA 171153Z 18012KT 10SM BKN006 BKN013 OVC055 13/12 A3008 RMK AO2 RAE06 SLP189 P0001 60002 70002 T01330122 10167 20128 53004 |
| 2026-10-17 08:20 EDT | SPECI | 13.3° | 11.7° | 5.7 | SPECI KSEA 171220Z 21011G24KT 10SM SCT008 SCT013 OVC055 13/12 A3009 RMK AO2 PRESRR T01330117 |
| 2026-10-17 08:40 EDT | SPECI | 13.9° | 11.7° | 3.1 | SPECI KSEA 171240Z 19006G16KT 10SM FEW008 BKN015 OVC055 14/12 A3011 RMK AO2 CIG 012V018 T01390117 |
| 2026-10-17 08:53 EDT | METAR | 13.9° | 11.1° | 4.1 | METAR KSEA 171253Z 22008KT 10SM FEW008 BKN015 OVC055 14/11 A3012 RMK AO2 SLP202 CIG 012V018 T01390111 |
| 2026-10-17 09:53 EDT | METAR | 13.3° | 11.1° | 4.6 | METAR KSEA 171353Z 20009KT 10SM BKN015 OVC021 13/11 A3014 RMK AO2 SLP212 T01330111 |
| 2026-10-17 10:53 EDT | METAR | 13.3° | 11.1° | 5.1 | METAR KSEA 171453Z 21010KT 10SM OVC014 13/11 A3016 RMK AO2 SLP219 T01330111 51028 |
| 2026-10-17 11:53 EDT | METAR | 13.3° | 11.1° | 5.1 | METAR KSEA 171553Z 20010KT 10SM OVC016 13/11 A3019 RMK AO2 SLP227 T01330111 |
| 2026-10-17 12:53 EDT | METAR | 14.4° | 11.1° | 3.6 | METAR KSEA 171653Z 21007KT 10SM SCT019 OVC028 14/11 A3022 RMK AO2 SLP238 T01440111 |
| 2026-10-17 13:53 EDT | METAR | 13.3° | 10.6° | 4.1 | METAR KSEA 171753Z 05008KT 4SM -RA OVC017 13/11 A3024 RMK AO2 RAB43 SLP246 P0000 60000 T01330106 10144 20133 51026 |
| 2026-10-17 14:53 EDT | METAR | 13.3° | 10.6° | 3.1 | METAR KSEA 171853Z 11006KT 10SM OVC025 13/11 A3024 RMK AO2 RAE20 SLP247 P0000 T01330106 |
| 2026-10-17 15:53 EDT | METAR | 15° | 10° | 5.7 | METAR KSEA 171953Z 04011KT 10SM BKN025 OVC036 15/10 A3025 RMK AO2 SLP248 T01500100 |
| 2026-10-17 16:00 EDT | SPECI | 15° | 9.4° | 4.6 | SPECI KSEA 172000Z 05009KT 10SM SCT025 BKN037 OVC044 15/09 A3024 RMK AO2 T01500094 |
| 2026-10-17 16:53 EDT | METAR | 15.6° | 8.9° | 4.1 | METAR KSEA 172053Z 06008KT 10SM SCT030 BKN045 16/09 A3025 RMK AO2 SLP248 60000 T01560089 51002 |
| 2026-10-17 17:53 EDT | METAR | 16.7°max | 7.8° | 5.1 | METAR KSEA 172153Z 04010KT 10SM FEW030 SCT040 BKN250 17/08 A3023 RMK AO2 SLP244 T01670078 |
| 2026-10-17 18:53 EDT | METAR | 16.1° | 8.3° | 4.6 | METAR KSEA 172253Z 02009KT 10SM FEW040 BKN085 BKN250 16/08 A3023 RMK AO2 SLP241 T01610083 |
| 2026-10-17 19:53 EDT | METAR | 15.6° | 7.2° | 4.6 | METAR KSEA 172353Z 03009KT 10SM FEW040 SCT085 BKN250 16/07 A3023 RMK AO2 SLP241 60000 T01560072 10167 20122 55006 |
| 2026-10-17 20:53 EDT | METAR | 14.4° | 6.1° | 5.7 | METAR KSEA 180053Z 05011KT 10SM SCT085 BKN250 14/06 A3023 RMK AO2 SLP242 T01440061 |
| 2026-10-17 21:53 EDT | METAR | 13.3° | 5.6° | 6.2 | METAR KSEA 180153Z 05012KT 10SM SCT085 BKN250 13/06 A3023 RMK AO2 SLP245 T01330056 |
| 2026-10-17 22:53 EDT | METAR | 12.2° | 5.6° | 5.7 | METAR KSEA 180253Z 04011KT 10SM FEW090 SCT250 12/06 A3024 RMK AO2 SLP247 T01220056 53005 |
| 2026-10-17 23:53 EDT | METAR | 12.2° | 5° | 8.2 | METAR KSEA 180353Z 04016KT 10SM FEW040 FEW090 12/05 A3024 RMK AO2 SLP248 T01220050 |
| 2026-10-18 00:53 EDT | METAR | 11.1° | 5.6° | 5.7 | METAR KSEA 180453Z 03011KT 10SM FEW090 11/06 A3025 RMK AO2 SLP249 T01110056 |
| 2026-10-18 01:53 EDT | METAR | 11.1° | 6.1° | 5.1 | METAR KSEA 180553Z 03010KT 10SM CLR 11/06 A3025 RMK AO2 SLP248 T01110061 10156 20111 50001 |
| 2026-10-18 02:53 EDT | METAR | 10°min | 6.1° | 2.1 | METAR KSEA 180653Z 03004KT 10SM CLR 10/06 A3025 RMK AO2 SLP248 T01000061 |
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/2026-10-17 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).