Station-day record · settlement source
Seattle · America/Los_Angeles · ← 2026-10-30 · 2026-11-01 → · All dates for KSEA · JSON
METAR KSEA 312153Z 35007KT 10SM BKN240 12/07 A2996 RMK AO2 SLP152 T01220067
SPECI KSEA 311441Z 01007KT 1/4SM R16L/0700V1600FT FG VV001 01/01 A3001 RMK AO2 T00110006
Local day 2026-10-31 03:00 EDT → 2026-11-01 02:00 EST (24 h, UTC-07:00) · 31 reports · longest gap 60 min
High 54°F (12.22°C) · Low 34°F (1.11°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 2026-11-01 05:00 EST · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 3f31c66ca0108d4e29369a3dcf1999d13188fced69f1715306f94654b92c7ab9
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 31 · 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 |
|---|---|---|---|---|---|
| 2026-10-31 03:53 EDT | METAR | 5.6° | 5° | 1.5 | METAR KSEA 310753Z 06003KT 10SM CLR 06/05 A2998 RMK AO2 SLP160 T00560050 400940056 |
| 2026-10-31 04:53 EDT | METAR | 4.4° | 4.4° | 0 | METAR KSEA 310853Z 00000KT 8SM CLR 04/04 A2999 RMK AO2 SLP163 T00440044 53005 |
| 2026-10-31 05:53 EDT | METAR | 4.4° | 4.4° | 2.1 | METAR KSEA 310953Z 12004KT 10SM CLR 04/04 A2999 RMK AO2 SLP164 T00440044 |
| 2026-10-31 06:53 EDT | METAR | 5° | 2.8° | 3.6 | METAR KSEA 311053Z 12007KT 10SM CLR 05/03 A2999 RMK AO2 SLP163 T00500028 |
| 2026-10-31 07:53 EDT | METAR | 5° | 2.8° | 2.6 | METAR KSEA 311153Z 12005KT 10SM FEW250 05/03 A2999 RMK AO2 SLP163 70054 T00500028 10078 20039 50000 |
| 2026-10-31 08:53 EDT | METAR | 3.3° | 2.2° | 2.1 | METAR KSEA 311253Z 06004KT 8SM FEW250 03/02 A3000 RMK AO2 SLP167 T00330022 |
| 2026-10-31 09:53 EDT | METAR | 2.8° | 2.2° | 2.1 | METAR KSEA 311353Z 03004KT 7SM MIFG CLR 03/02 A3001 RMK AO2 SLP169 T00280022 |
| 2026-10-31 10:14 EDT | SPECI | 3.3° | 2.8° | 2.6 | SPECI KSEA 311414Z 04005KT 1 1/2SM BR FEW160 03/03 A3001 RMK AO2 T00330028 |
| 2026-10-31 10:19 EDT | SPECI | 3.3° | 2.8° | 2.1 | SPECI KSEA 311419Z 03004KT 3/4SM R16L/P6000FT BR VV001 03/03 A3001 RMK AO2 VIS 1/4V5 T00330028 |
| 2026-10-31 10:41 EDT | SPECI | 1.1°min | 0.6° | 3.6 | SPECI KSEA 311441Z 01007KT 1/4SM R16L/0700V1600FT FG VV001 01/01 A3001 RMK AO2 T00110006 |
| 2026-10-31 10:53 EDT | METAR | 2.2° | 1.7° | 2.6 | METAR KSEA 311453Z 01005KT 1/4SM R16L/0600V1200FT FG VV001 02/02 A3001 RMK AO2 SLP172 T00220017 51008 |
| 2026-10-31 11:04 EDT | SPECI | 2.2° | 2.2° | 3.1 | SPECI KSEA 311504Z 01006KT 1/8SM R16L/0600V1000FT FG VV001 02/02 A3001 RMK AO2 T00220022 |
| 2026-10-31 11:53 EDT | METAR | 4.4° | 4.4° | 2.1 | METAR KSEA 311553Z 02004KT 1/8SM R16L/0700V1200FT FG VV001 04/04 A3001 RMK AO2 SLP171 T00440044 |
| 2026-10-31 12:53 EDT | METAR | 4.4° | 4.4° | 0 | METAR KSEA 311653Z 00000KT 1/4SM R16L/0800V1000FT FG VV001 04/04 A3001 RMK AO2 SLP171 T00440044 |
| 2026-10-31 13:39 EDT | SPECI | 6.1° | 6.1° | 1.5 | SPECI KSEA 311739Z 30003KT 1SM R16L/0800V3000FT BR BKN001 BKN050 BKN120 06/06 A3001 RMK AO2 T00610061 |
| 2026-10-31 13:53 EDT | METAR | 5.6° | 5.6° | 1.5 | METAR KSEA 311753Z 31003KT 2SM R16L/1600VP6000FT BR SCT001 BKN010 BKN160 06/06 A3001 RMK AO2 SLP171 T00560056 10061 20011 58001 |
| 2026-10-31 14:07 EDT | SPECI | 6.1° | 6.1° | 1.5 | SPECI KSEA 311807Z 29003KT 3SM BR SCT001 SCT010 BKN170 06/06 A3001 RMK AO2 T00610061 |
| 2026-10-31 14:53 EDT | METAR | 7.8° | 7.2° | 1.5 | METAR KSEA 311853Z 32003KT 8SM FEW005 SCT014 BKN140 08/07 A3001 RMK AO2 SLP170 T00780072 |
| 2026-10-31 15:53 EDT | METAR | 8.9° | 7.8° | 2.6 | METAR KSEA 311953Z 31005KT 10SM FEW005 SCT016 BKN160 09/08 A2999 RMK AO2 SLP164 T00890078 |
| 2026-10-31 16:53 EDT | METAR | 11.1° | 7.8° | 2.6 | METAR KSEA 312053Z 31005KT 10SM FEW020 SCT060 BKN200 11/08 A2998 RMK AO2 SLP159 T01110078 58012 |
| 2026-10-31 17:53 EDT | METAR | 12.2°max | 6.7° | 3.6 | METAR KSEA 312153Z 35007KT 10SM BKN240 12/07 A2996 RMK AO2 SLP152 T01220067 |
| 2026-10-31 18:53 EDT | METAR | 11.7° | 6.7° | 4.6 | METAR KSEA 312253Z 34009KT 10SM FEW100 BKN240 12/07 A2995 RMK AO2 SLP148 T01170067 |
| 2026-10-31 19:53 EDT | METAR | 10° | 6.1° | 4.6 | METAR KSEA 312353Z 34009KT 10SM FEW100 BKN240 10/06 A2995 RMK AO2 SLP149 T01000061 10122 20056 55009 |
| 2026-10-31 20:53 EDT | METAR | 8.3° | 6.1° | 5.1 | METAR KSEA 010053Z 34010KT 10SM FEW100 SCT240 08/06 A2995 RMK AO2 SLP150 T00830061 |
| 2026-10-31 21:53 EDT | METAR | 7.2° | 5.6° | 4.6 | METAR KSEA 010153Z 35009KT 10SM FEW100 SCT240 07/06 A2996 RMK AO2 SLP153 T00720056 |
| 2026-10-31 22:53 EDT | METAR | 8.3° | 5.6° | 5.1 | METAR KSEA 010253Z 01010KT 10SM SCT240 08/06 A2996 RMK AO2 SLP152 T00830056 51003 $ |
| 2026-10-31 23:53 EDT | METAR | 7.8° | 5° | 4.6 | METAR KSEA 010353Z 01009KT 10SM FEW100 SCT200 08/05 A2996 RMK AO2 SLP153 T00780050 $ |
| 2026-11-01 00:53 EDT | METAR | 6.7° | 5° | 3.1 | METAR KSEA 010453Z 02006KT 10SM FEW100 FEW200 07/05 A2996 RMK AO2 SLP155 T00670050 $ |
| 2026-11-01 01:53 EDT | METAR | 5.6° | 5° | 2.1 | METAR KSEA 010553Z 33004KT 10SM SCT090 SCT220 06/05 A2998 RMK AO2 SLP159 T00560050 10100 20050 53006 $ |
| 2026-11-01 01:05 EST | SPECI | 5.6° | 5° | 2.1 | SPECI KSEA 010605Z 02004KT 10SM BKN012 OVC090 06/05 A2997 RMK AO2 T00560050 $ |
| 2026-11-01 01:53 EST | METAR | 7.8° | 5.6° | 3.6 | METAR KSEA 010653Z 03007KT 10SM BKN011 OVC090 08/06 A2998 RMK AO2 SLP160 T00780056 $ |
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/2026-10-31 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).