Station-day record · settlement source
Monterrey · America/Monterrey · ← 2026-10-19 · 2026-10-21 → · All dates for MMMY · JSON
METAR MMMY 201940Z 11008KT 10SM SCT020 OVC030 24/18 A3017 RMK 8/8// TOPS 070
METAR MMMY 200840Z 09004KT 8SM BKN070 18/16 A3016 RMK SLP205 57011 979 8/070
Local day 2026-10-20 02:00 EDT → 2026-10-21 02:00 EDT (24 h, UTC-06:00) · 24 reports · longest gap 61 min
final at 2026-10-21 05:00 EDT · correction hold 3 h after local midnight
longest gap 61 min · limit 90 min
SHA-256 e3936296baaf91341b9af7a4c260e4137b44a008526f91160a219c3a6ceebddf
Transaction 0xa231a6a26fb4843c97ba34b72d18dd8aeee327fe640eac35bd0a4a1456890592 · 2026-11-05 14:01 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 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 |
|---|---|---|---|---|---|
| 2026-10-20 02:40 EDT | METAR | 19° | 15° | 1.5 | METAR MMMY 200640Z 09003KT 8SM BKN070 19/15 A3018 RMK 8/030 |
| 2026-10-20 03:40 EDT | METAR | 19° | 16° | 1.5 | METAR MMMY 200740Z 06003KT 8SM BKN070 19/16 A3017 RMK 8/070 |
| 2026-10-20 04:40 EDT | METAR | 18°min | 16° | 2.1 | METAR MMMY 200840Z 09004KT 8SM BKN070 18/16 A3016 RMK SLP205 57011 979 8/070 |
| 2026-10-20 05:40 EDT | METAR | 19° | 16° | 0 | METAR MMMY 200940Z 00000KT 8SM BKN070 19/16 A3015 RMK 8/070 |
| 2026-10-20 06:40 EDT | METAR | 18° | 16° | 0 | METAR MMMY 201040Z 00000KT 10SM BKN070 18/16 A3015 RMK 8/070 |
| 2026-10-20 07:40 EDT | METAR | 19° | 16° | 0 | METAR MMMY 201140Z 00000KT 10SM FEW020 BKN070 19/16 A3017 RMK SLP209 52003 989 8/570 |
| 2026-10-20 08:40 EDT | METAR | 19° | 17° | 0 | METAR MMMY 201240Z 00000KT 8SM BKN012 OVC020 19/17 A3018 RMK 8/5// |
| 2026-10-20 09:40 EDT | METAR | 19° | 18° | 0 | METAR MMMY 201340Z 00000KT 8SM BKN012 OVC018 19/18 A3021 RMK 8/5// |
| 2026-10-20 10:40 EDT | METAR | 20° | 18° | 0 | METAR MMMY 201440Z 00000KT 10SM BKN018 OVC050 20/18 A3023 RMK SLP232 52022 967 8/5// |
| 2026-10-20 11:40 EDT | METAR | 21° | 18° | 0 | METAR MMMY 201540Z 00000KT 10SM BKN015 OVC025 21/18 A3024 RMK 8/5// |
| 2026-10-20 12:40 EDT | METAR | 21° | 18° | 2.1 | METAR MMMY 201640Z 14004KT 8SM BKN015 OVC020 21/18 A3024 RMK 8/5// |
| 2026-10-20 13:40 EDT | METAR | 22° | 18° | 2.6 | METAR MMMY 201740Z 03005KT 7SM BKN015 OVC018 22/18 A3023 RMK SLP231 57001 958 8/5// HZY |
| 2026-10-20 14:40 EDT | METAR | 23° | 18° | 3.6 | METAR MMMY 201840Z 10007KT 10SM SCT015 BKN020 BKN035 23/18 A3020 RMK 8/800 |
| 2026-10-20 15:40 EDT | METAR | 24°max | 18° | 4.1 | METAR MMMY 201940Z 11008KT 10SM SCT020 OVC030 24/18 A3017 RMK 8/8// TOPS 070 |
| 2026-10-20 16:41 EDT | METAR | 24° | 18° | 2.1 | METAR MMMY 202041Z 08004KT 7SM SCT015 OVC025 24/18 A3015 RMK SLP204 57024 956 8/5// HZY |
| 2026-10-20 17:40 EDT | METAR | 24° | 18° | 2.6 | METAR MMMY 202140Z 09005KT 7SM SCT020 BKN030 OVC070 24/18 A3015 RMK 8/57/ HZY |
| 2026-10-20 18:40 EDT | METAR | 24° | 17° | 2.1 | METAR MMMY 202240Z 10004KT 7SM FEW020 BKN030 OVC070 24/17 A3015 RMK 8/57/ HZY |
| 2026-10-20 19:40 EDT | METAR | 24° | 17° | 1.5 | METAR MMMY 202340Z 14003KT 7SM SCT020 BKN030 OVC070 24/17 A3015 RMK SLP202 57001 953 8/57/ HZY |
| 2026-10-20 20:40 EDT | METAR | 24° | 18° | 2.1 | METAR MMMY 210040Z 21004KT 8SM BKN030 OVC070 24/18 A3016 RMK 8/57/ |
| 2026-10-20 21:40 EDT | METAR | 23° | 19° | 2.1 | METAR MMMY 210140Z 20004KT 7SM BKN030 OVC070 23/19 A3018 RMK 8/57/ HZY |
| 2026-10-20 22:40 EDT | METAR | 22° | 18° | 2.1 | METAR MMMY 210240Z 30004KT 7SM SCT025 BKN070 22/18 A3019 RMK SLP217 52013 901 8/580 HZY |
| 2026-10-20 23:40 EDT | METAR | 22° | 18° | 2.6 | METAR MMMY 210340Z 29005KT 8SM BKN030 22/18 A3019 RMK 8/500 HZY |
| 2026-10-21 00:40 EDT | METAR | 22° | 18° | 2.6 | METAR MMMY 210440Z 32005KT 7SM BKN030 22/18 A3019 RMK 8/500 HZY |
| 2026-10-21 01:40 EDT | METAR | 21° | 18° | 2.6 | METAR MMMY 210540Z 32005KT 7SM BKN025 21/18 A3019 RMK SLP214 57002 951 8/500 HZY |
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/2026-10-20 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).