Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-14 · 2026-10-16 → · All dates for KSEA · JSON
METAR KSEA 152253Z 36005KT 10SM FEW250 19/11 A3031 RMK AO2 SLP268 T01940106 $
METAR KSEA 150853Z 36007KT 6SM BR FEW002 10/09 A3037 RMK AO2 SLP291 T01000094 53002 $
Local day 2026-10-15 03:00 EDT → 2026-10-16 03:00 EDT (24 h, UTC-07:00) · 33 reports · longest gap 60 min
High 68°F (20°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 2026-10-16 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 96b2440abd5da49ec1c1bb91491f93b094b7d2c6e395402775963554a8247498
Transaction 0xa7e29c91a0cc3c8e9b8761ca1be7c665a72b40c337d67961fdc94ea94a426c97 · 2026-10-16 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 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 |
|---|---|---|---|---|---|
| 2026-10-15 03:53 EDT | METAR | 11.7° | 10.6° | 2.1 | METAR KSEA 150753Z 36004KT 10SM CLR 12/11 A3036 RMK AO2 SLP288 T01170106 401940106 $ |
| 2026-10-15 04:53 EDT | METAR | 10°min | 9.4° | 3.6 | METAR KSEA 150853Z 36007KT 6SM BR FEW002 10/09 A3037 RMK AO2 SLP291 T01000094 53002 $ |
| 2026-10-15 05:12 EDT | SPECI | 10.6° | 10° | 3.6 | SPECI KSEA 150912Z 02007KT 1/2SM R16L/P6000FT BR BKN002 11/10 A3037 RMK AO2 SFC VIS 3 T01060100 $ |
| 2026-10-15 05:53 EDT | METAR | 11.1° | 10.6° | 4.1 | METAR KSEA 150953Z 36008KT 1/2SM R16L/3000VP6000FT FG VV001 11/11 A3038 RMK AO2 SLP293 T01110106 $ |
| 2026-10-15 06:10 EDT | SPECI | 11.1° | 11.1° | 4.1 | SPECI KSEA 151010Z 01008KT 1/2SM R16L/1600V2000FT FG VV001 11/11 A3038 RMK AO2 T01110111 $ |
| 2026-10-15 06:53 EDT | METAR | 11.1° | 10.6° | 3.1 | METAR KSEA 151053Z 36006KT 1/4SM R16L/1000V1600FT FG VV001 11/11 A3037 RMK AO2 SLP291 T01110106 $ |
| 2026-10-15 07:53 EDT | METAR | 10.6° | 10.6° | 3.1 | METAR KSEA 151153Z 35006KT 1/4SM R16L/1000V1200FT FG VV001 11/11 A3038 RMK AO2 SLP292 T01060106 10133 20100 51001 $ |
| 2026-10-15 08:29 EDT | SPECI | 10.6° | 10.6° | 4.1 | SPECI KSEA 151229Z 35008KT 1/8SM R16L/1400V2600FT FG VV001 11/11 A3038 RMK AO2 SFC VIS 1/2 T01060106 $ |
| 2026-10-15 08:53 EDT | METAR | 10.6° | 10.6° | 3.1 | METAR KSEA 151253Z 36006KT 1/8SM R16L/2000VP6000FT FG VV001 11/11 A3039 RMK AO2 SFC VIS 1/2 SLP298 T01060106 $ |
| 2026-10-15 09:53 EDT | METAR | 10.6° | 10.6° | 6.2 | METAR KSEA 151353Z 36012KT 1/8SM R16L/1200V3500FT FG VV001 11/11 A3040 RMK AO2 SFC VIS 1/4 SLP299 T01060106 |
| 2026-10-15 10:06 EDT | SPECI | 10.6° | 10.6° | 4.1 | SPECI KSEA 151406Z 01008KT 1/8SM R16L/1200V1600FT FG VV001 11/11 A3039 RMK AO2 SFC VIS 1/4 T01060106 |
| 2026-10-15 10:15 EDT | SPECI | 10.6° | 10.6° | 5.1 | SPECI KSEA 151415Z 36010KT 1/8SM R16L/1400V4500FT FG VV001 11/11 A3039 RMK AO2 SFC VIS 1/4 T01060106 |
| 2026-10-15 10:53 EDT | METAR | 10.6° | 10.6° | 4.1 | METAR KSEA 151453Z 01008KT 1/8SM R16L/1600V4500FT FG VV001 11/11 A3039 RMK AO2 SFC VIS 1/2 SLP299 T01060106 50005 |
| 2026-10-15 11:53 EDT | METAR | 10.6° | 10° | 3.6 | METAR KSEA 151553Z 02007KT 1/8SM R16L/4000VP6000FT FG VV001 11/10 A3040 RMK AO2 SFC VIS 3/4 SLP302 T01060100 |
| 2026-10-15 12:53 EDT | METAR | 10.6° | 10° | 4.6 | METAR KSEA 151653Z 36009KT 1/8SM R16L/4000VP6000FT FG VV001 11/10 A3040 RMK AO2 SFC VIS 1 SLP302 T01060100 |
| 2026-10-15 13:24 EDT | SPECI | 11.1° | 10.6° | 3.6 | SPECI KSEA 151724Z 02007KT 1SM R16L/P6000FT BR OVC001 11/11 A3040 RMK AO2 SFC VIS 3 T01110106 |
| 2026-10-15 13:39 EDT | SPECI | 11.1° | 10.6° | 4.1 | SPECI KSEA 151739Z 36008KT 1SM R16L/P6000FT BR OVC002 11/11 A3040 RMK AO2 SFC VIS 4 T01110106 |
| 2026-10-15 13:53 EDT | METAR | 11.1° | 10.6° | 3.1 | METAR KSEA 151753Z 36006KT 6SM BR BKN003 OVC005 11/11 A3040 RMK AO2 SLP300 T01110106 10111 20100 50001 |
| 2026-10-15 14:15 EDT | SPECI | 11.1° | 10.6° | 3.6 | SPECI KSEA 151815Z 02007KT 6SM BR SCT003 BKN005 11/11 A3040 RMK AO2 T01110106 |
| 2026-10-15 14:33 EDT | SPECI | 12.2° | 10.6° | 2.6 | SPECI KSEA 151833Z 35005KT 6SM BR SCT006 BKN240 12/11 A3039 RMK AO2 T01220106 $ |
| 2026-10-15 14:53 EDT | METAR | 13.9° | 10.6° | 2.6 | METAR KSEA 151853Z 02005KT 7SM FEW006 BKN240 14/11 A3039 RMK AO2 SLP298 T01390106 $ |
| 2026-10-15 15:53 EDT | METAR | 15.6° | 10.6° | 2.1 | METAR KSEA 151953Z 35004KT 10SM FEW010 FEW240 16/11 A3038 RMK AO2 SLP294 T01560106 $ |
| 2026-10-15 16:53 EDT | METAR | 16.7° | 10.6° | 3.6 | METAR KSEA 152053Z 30007KT 10SM FEW015 SCT240 17/11 A3036 RMK AO2 SLP286 T01670106 58013 $ |
| 2026-10-15 17:53 EDT | METAR | 17.8° | 11.1° | 2.6 | METAR KSEA 152153Z 32005KT 10SM SCT250 18/11 A3033 RMK AO2 SLP277 T01780111 $ |
| 2026-10-15 18:53 EDT | METAR | 19.4°max | 10.6° | 2.6 | METAR KSEA 152253Z 36005KT 10SM FEW250 19/11 A3031 RMK AO2 SLP268 T01940106 $ |
| 2026-10-15 19:53 EDT | METAR | 19.4° | 10.6° | 3.1 | METAR KSEA 152353Z 35006KT 10SM FEW230 19/11 A3029 RMK AO2 SLP262 T01940106 10200 20111 56023 $ |
| 2026-10-15 20:53 EDT | METAR | 17.2° | 11.1° | 2.1 | METAR KSEA 160053Z 31004KT 10SM SCT230 17/11 A3027 RMK AO2 SLP256 T01720111 $ |
| 2026-10-15 21:53 EDT | METAR | 15° | 9.4° | 3.1 | METAR KSEA 160153Z 36006KT 10SM SCT230 15/09 A3025 RMK AO2 SLP251 T01500094 $ |
| 2026-10-15 22:53 EDT | METAR | 14.4° | 10° | 0 | METAR KSEA 160253Z 00000KT 10SM FEW250 14/10 A3026 RMK AO2 SLP255 T01440100 55008 $ |
| 2026-10-15 23:53 EDT | METAR | 15° | 9.4° | 0 | METAR KSEA 160353Z 00000KT 10SM FEW250 15/09 A3026 RMK AO2 SLP254 T01500094 $ |
| 2026-10-16 00:53 EDT | METAR | 12.8° | 8.9° | 2.1 | METAR KSEA 160453Z 33004KT 10SM FEW250 13/09 A3026 RMK AO2 SLP254 T01280089 $ |
| 2026-10-16 01:53 EDT | METAR | 12.2° | 8.9° | 2.1 | METAR KSEA 160553Z 36004KT 10SM FEW250 12/09 A3026 RMK AO2 SLP253 T01220089 10194 20117 58002 $ |
| 2026-10-16 02:53 EDT | METAR | 11.7° | 9.4° | 3.1 | METAR KSEA 160653Z 36006KT 10SM SCT250 12/09 A3025 RMK AO2 SLP250 T01170094 $ |
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/2026-10-15 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).