Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-27 · 2026-10-29 → · All dates for KSEA · JSON
METAR KSEA 282253Z 21013KT 10SM FEW025 SCT065 SCT120 12/06 A2997 RMK AO2 SLP155 CB DSNT S AND SW TCU DSNT NW SHRA S T01220056
METAR KSEA 290353Z 14010KT 10SM FEW033 FEW060 SCT120 07/04 A3001 RMK AO2 SLP171 T00670039
Local day 2026-10-28 03:00 EDT → 2026-10-29 03:00 EDT (24 h, UTC-07:00) · 28 reports · longest gap 60 min
High 54°F (12.22°C) · Low 44°F (6.67°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 2026-10-29 06:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
1 report(s) in this day were re-issued after first publication; the original text is shown struck through in the table.
SHA-256 645f007529965af2a7b2304b271884e4132324eddd24965c797e067b1700c105
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 28 · 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 |
|---|---|---|---|---|---|
| 2026-10-28 03:08 EDT | SPECI | 8.3° | 6.7° | 6.2 | SPECI KSEA 280708Z 17012KT 10SM -RA SCT017 BKN025 OVC038 08/07 A2988 RMK AO2 RAB0656 P0000 T00830067 $ |
| 2026-10-28 03:49 EDT | SPECI | 8° | 7° | 5.1 | SPECI KSEA 280749Z 22010G17KT 4SM RA BR SCT009 BKN020 OVC035 08/07 A2988 RMK AO2 RAB0656 P0014 $ |
| 2026-10-28 03:53 EDT | METAR | 8.3° | 7.2° | 4.1 | METAR KSEA 280753Z 21008G17KT 4SM RA BR SCT009 BKN026 OVC035 08/07 A2988 RMK AO2 RAB0656 SLP125 P0015 T00830072 401390083 $ |
| 2026-10-28 04:53 EDT | METAR | 8.3° | 7.2° | 8.2 | METAR KSEA 280853Z 17016KT 10SM SCT009 BKN013 OVC039 08/07 A2985 RMK AO2 RAE45 SLP115 P0012 60027 T00830072 58011 $ |
| 2026-10-28 05:00 EDT | SPECI | 8.3° | 7.2° | 7.7 | SPECI KSEA 280900Z 17015KT 10SM SCT009 BKN015 08/07 A2985 RMK AO2 T00830072 $ |
| 2026-10-28 05:53 EDT | METAR | 8.3° | 7.2° | 6.2 | METAR KSEA 280953Z 19012KT 10SM BKN009 BKN015 OVC075 08/07 A2985 RMK AO2 RAB12E46 SLP113 P0002 T00830072 $ |
| 2026-10-28 06:53 EDT | METAR | 8.3° | 7.2° | 6.2 | METAR KSEA 281053Z 19012G19KT 10SM SCT009 BKN015 OVC110 08/07 A2984 RMK AO2 SLP112 T00830072 $ |
| 2026-10-28 07:53 EDT | METAR | 8.9° | 6.7° | 5.7 | METAR KSEA 281153Z 21011KT 10SM FEW009 BKN017 BKN110 09/07 A2986 RMK AO2 PK WND 17027/1124 SLP118 60029 70029 T00890067 10094 20083 53003 $ |
| 2026-10-28 08:53 EDT | METAR | 8.3° | 5.6° | 4.1 | METAR KSEA 281253Z 23008G16KT 10SM FEW009 BKN016 BKN100 08/06 A2988 RMK AO2 SLP126 T00830056 $ |
| 2026-10-28 09:53 EDT | METAR | 8.9° | 5.6° | 4.1 | METAR KSEA 281353Z 24008KT 10SM FEW017 BKN021 BKN110 09/06 A2990 RMK AO2 SLP131 T00890056 |
| 2026-10-28 10:53 EDT | METAR | 8.3° | 6.1° | 3.1 | METAR KSEA 281453Z 21006KT 10SM FEW012 BKN017 BKN140 08/06 A2990 RMK AO2 SLP133 T00830061 51014 |
| 2026-10-28 11:53 EDT | METAR | 8.3° | 6.7° | 6.7 | METAR KSEA 281553Z 20013KT 10SM FEW012 BKN016 BKN110 08/07 A2992 RMK AO2 SLP137 T00830067 |
| 2026-10-28 12:14 EDT | SPECI | 8.9° | 6.7° | 6.7 | SPECI KSEA 281614Z 20013KT 10SM SCT015 SCT110 BKN150 09/07 A2992 RMK AO2 SCT015 V BKN T00890067 |
| 2026-10-28 12:53 EDT | METAR | 8.9° | 6.7° | 6.2 | METAR KSEA 281653Z 19012G18KT 10SM FEW011 SCT015 SCT120 BKN150 09/07 A2994 RMK AO2 SLP144 SCT015 V BKN T00890067 |
| 2026-10-28 13:53 EDT | METAR | 9.4° | 5.6° | 7.2 | METAR KSEA 281753Z 19014G20KT 10SM SCT013 BKN140 BKN210 09/06 A2995 RMK AO2 SLP148 T00940056 10100 20083 51015 |
| 2026-10-28 14:53 EDT | METAR | 11.1° | 6.1° | 5.7 | METAR KSEA 281853Z 22011G18KT 10SM SCT018 SCT070 BKN140 BKN210 11/06 A2996 RMK AO2 SLP152 T01110061 |
| 2026-10-28 15:53 EDT | METAR | 10° | 6.1° | 5.7 | METAR KSEA 281953Z 22011KT 10SM SCT025TCU SCT045 BKN090 BKN210 10/06 A2996 RMK AO2 SLP153 CB DSNT NE TCU E-S T01000061 |
| 2026-10-28 16:53 EDT | METAR | 9.4° | 4.4° | 6.7 | METAR KSEA 282053Z 19013KT 10SM FEW020CB BKN060 BKN110 BKN210 09/04 A2996 RMK AO2 SLP151 CB SE-S MOV E CBMAM SE TCU DSNT SW AND W SHRA S T00940044 50003 |
| 2026-10-28 17:53 EDT | METAR | 11.1° | 5.6° | 4.6 | METAR KSEA 282153Z COR 18009KT 10SM FEW025 FEW060 SCT110 SCT230 11/06 A2996 RMK AO2 SLP152 CB DSNT SW TCU DSNT NW AND E T01110056 original: METAR KSEA 282153Z 18009KT 10SM FEW025CB FEW060 SCT110 SCT230 11/06 A2996 RMK AO2 SLP152 CB DSNT SW TCU DSNT NW AND E T01110056 |
| 2026-10-28 18:53 EDT | METAR | 12.2°max | 5.6° | 6.7 | METAR KSEA 282253Z 21013KT 10SM FEW025 SCT065 SCT120 12/06 A2997 RMK AO2 SLP155 CB DSNT S AND SW TCU DSNT NW SHRA S T01220056 |
| 2026-10-28 19:53 EDT | METAR | 10° | 3.9° | 5.1 | METAR KSEA 282353Z 18010KT 10SM FEW025 SCT070 SCT110 10/04 A2998 RMK AO2 SLP159 CB DSNT N AND SE TCU DSNT NE T01000039 10122 20094 53008 |
| 2026-10-28 20:53 EDT | METAR | 8.9° | 3.9° | 4.6 | METAR KSEA 290053Z 16009KT 10SM FEW025 FEW070 SCT110 09/04 A2999 RMK AO2 SLP163 CB DSNT NE T00890039 |
| 2026-10-28 21:53 EDT | METAR | 7.8° | 4.4° | 4.6 | METAR KSEA 290153Z 13009KT 10SM FEW034 FEW070 SCT100 08/04 A3001 RMK AO2 SLP169 T00780044 |
| 2026-10-28 22:53 EDT | METAR | 7.8° | 3.9° | 5.7 | METAR KSEA 290253Z 13011KT 10SM FEW032 SCT034 SCT070 08/04 A3001 RMK AO2 SLP171 T00780039 51012 |
| 2026-10-28 23:53 EDT | METAR | 6.7°min | 3.9° | 5.1 | METAR KSEA 290353Z 14010KT 10SM FEW033 FEW060 SCT120 07/04 A3001 RMK AO2 SLP171 T00670039 |
| 2026-10-29 00:53 EDT | METAR | 7.8° | 3.9° | 4.6 | METAR KSEA 290453Z 20009KT 7SM RA SCT033 BKN040 BKN100 08/04 A3002 RMK AO2 RAB50 SLP174 P0000 T00780039 |
| 2026-10-29 01:53 EDT | METAR | 7.2° | 5.6° | 2.6 | METAR KSEA 290553Z 14005KT 10SM OVC040 07/06 A3002 RMK AO2 RAE44 SLP173 P0004 60004 T00720056 10100 20067 52002 |
| 2026-10-29 02:53 EDT | METAR | 7.2° | 4.4° | 4.1 | METAR KSEA 290653Z 15008KT 10SM BKN040 OVC055 07/04 A3001 RMK AO2 SLP171 T00720044 |
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/2026-10-28 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).