Station-day record · settlement source
Monterrey · America/Monterrey · ← 2026-10-17 · 2026-10-19 → · All dates for MMMY · JSON
METAR MMMY 181840Z 09007KT 10SM BKN070 20/05 A3034 RMK 8/030
METAR MMMY 180640Z 00000KT 8SM BKN080 13/08 A3041 RMK 8/070
Local day 2026-10-18 02:00 EDT → 2026-10-19 02:00 EDT (24 h, UTC-06:00) · 24 reports · longest gap 60 min
final at 2026-10-19 05:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 e3b3e92aec51419479511bd0cb30c15aea79ffa9585c98e0ee111f6571a46c72
Transaction 0x2159c171df8274c6b500effd8e6a28efd40531f6dd4b5bdc4ad75875b03dc76f · 2026-10-19 05:01 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 24 · 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 |
|---|---|---|---|---|---|
| 2026-10-18 02:40 EDT | METAR | 13°min | 8° | 0 | METAR MMMY 180640Z 00000KT 8SM BKN080 13/08 A3041 RMK 8/070 |
| 2026-10-18 03:40 EDT | METAR | 14° | 6° | 0 | METAR MMMY 180740Z 00000KT 8SM FEW050 BKN080 14/06 A3040 RMK 8/570 |
| 2026-10-18 04:40 EDT | METAR | 14° | 8° | 1 | METAR MMMY 180840Z 26002KT 8SM BKN080 14/08 A3038 RMK SLP289 57010 979 8/070 ISOL SC |
| 2026-10-18 05:40 EDT | METAR | 13° | 7° | 2.1 | METAR MMMY 180940Z 28004KT 8SM OVC080 13/07 A3037 RMK 8/07/ |
| 2026-10-18 06:40 EDT | METAR | 13° | 8° | 2.1 | METAR MMMY 181040Z 28004KT 8SM OVC080 13/08 A3036 RMK 8/07/ BINOVC |
| 2026-10-18 07:40 EDT | METAR | 13° | 8° | 0 | METAR MMMY 181140Z 00000KT 8SM FEW030 OVC070 13/08 A3037 RMK SLP287 57005 990 8/57/ BINOVC |
| 2026-10-18 08:40 EDT | METAR | 13° | 8° | 2.1 | METAR MMMY 181240Z 31004KT 12SM BKN070 13/08 A3038 RMK 8/030 ISOL SC |
| 2026-10-18 09:40 EDT | METAR | 14° | 9° | 0 | METAR MMMY 181340Z 00000KT 10SM BKN070 14/09 A3038 RMK 8/030 ISOL SC |
| 2026-10-18 10:40 EDT | METAR | 15° | 9° | 0 | METAR MMMY 181440Z 00000KT 10SM BKN070 15/09 A3040 RMK SLP297 52010 991 8/030 ISOL SC |
| 2026-10-18 11:40 EDT | METAR | 17° | 5° | 2.6 | METAR MMMY 181540Z 13005KT 10SM BKN070 17/05 A3040 RMK 8/030 |
| 2026-10-18 12:40 EDT | METAR | 18° | 4° | 2.6 | METAR MMMY 181640Z 10005KT 10SM SCT070 18/04 A3040 RMK 8/030 ISOL SC |
| 2026-10-18 13:40 EDT | METAR | 18° | 5° | 1 | METAR MMMY 181740Z 06002KT 10SM SCT070 18/05 A3037 RMK SLP286 57009 990 8/030 ISOL SC |
| 2026-10-18 14:40 EDT | METAR | 20°max | 5° | 3.6 | METAR MMMY 181840Z 09007KT 10SM BKN070 20/05 A3034 RMK 8/030 |
| 2026-10-18 15:40 EDT | METAR | 20° | 5° | 2.1 | METAR MMMY 181940Z 12004KT 10SM BKN070 20/05 A3031 RMK 8/030 |
| 2026-10-18 16:40 EDT | METAR | 20° | 5° | 2.6 | METAR MMMY 182040Z 09005KT 10SM BKN070 20/05 A3029 RMK SLP257 57026 985 8/030 |
| 2026-10-18 17:40 EDT | METAR | 20° | 4° | 2.1 | METAR MMMY 182140Z 15004KT 10SM BKN070 20/04 A3028 RMK 8/030 |
| 2026-10-18 18:40 EDT | METAR | 19° | 6° | 1.5 | METAR MMMY 182240Z 12003KT 10SM BKN080 19/06 A3028 RMK 8/030 |
| 2026-10-18 19:40 EDT | METAR | 18° | 9° | 1.5 | METAR MMMY 182340Z 12003KT 10SM BKN080 18/09 A3029 RMK SLP259 57001 980 8/070 |
| 2026-10-18 20:40 EDT | METAR | 17° | 9° | 2.1 | METAR MMMY 190040Z 10004KT 8SM BKN080 17/09 A3029 RMK 8/070 HZY |
| 2026-10-18 21:40 EDT | METAR | 17° | 9° | 0 | METAR MMMY 190140Z 00000KT 8SM BKN080 17/09 A3030 RMK 8/070 HZY ISOL SC |
| 2026-10-18 22:40 EDT | METAR | 16° | 9° | 2.1 | METAR MMMY 190240Z 12004KT 8SM SCT030 SCT080 16/09 A3031 RMK SLP266 52006 990 8/530 HZY |
| 2026-10-18 23:40 EDT | METAR | 15° | 9° | 2.1 | METAR MMMY 190340Z 13004KT 8SM BKN070 15/09 A3030 RMK 8/070 ISOL SC |
| 2026-10-19 00:40 EDT | METAR | 16° | 8° | 1.5 | METAR MMMY 190440Z 14003KT 8SM BKN070 16/08 A3029 RMK 8/070 |
| 2026-10-19 01:40 EDT | METAR | 16° | 7° | 0 | METAR MMMY 190540Z 00000KT 8SM BKN080 16/07 A3027 RMK SLP252 57010 990 8/070 ISOL SC |
Settlement source: the METAR-derived station-day record for MMMY for the contract date (station-local calendar day), as published at https://weathermarket.io/station/MMMY/2026-10-18 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).
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/MMMY/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/MMMY/YYYY-MM-DD (JSON).