Station-day record · settlement source
Washington D.C. · America/New_York · ← 2026-10-26 · 2026-10-28 → · All dates for KIAD · JSON
METAR KIAD 272052Z 00000KT 10SM FEW250 22/10 A3031 RMK AO2 SLP262 T02220100 56007
METAR KIAD 270752Z 00000KT 10SM CLR 07/07 A3025 RMK AO2 SLP242 T00720067
Local day 2026-10-27 00:00 EDT → 2026-10-28 00:00 EDT (24 h, UTC-04:00) · 23 reports · longest gap 120 min
High 72°F (22.22°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 2026-10-28 03:00 EDT · correction hold 3 h after local midnight
longest gap 120 min · limit 90 min
SHA-256 822deebaad4af3326a6b08486c57e243613992df5b9a4faaa26d6b31fd855a53
Transaction 0xd1820a9490fa0f7d5a2f7c7036f9dd753ea96f4b0d435325aecd2195f0c7bc47 · 2026-11-06 00:01 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 22 · suspect 1 · 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 |
|---|---|---|---|---|---|
| 2026-10-27 00:52 EDT | METAR | 8.3° | 7.2° | 0 | METAR KIAD 270452Z 00000KT 10SM FEW250 08/07 A3025 RMK AO2 SLP241 T00830072 402170033 |
| 2026-10-27 01:52 EDT | METAR | 8.3° | 7.2° | 1.5 | METAR KIAD 270552Z 19003KT 10SM FEW250 08/07 A3025 RMK AO2 SLP242 T00830072 10122 20078 51001 |
| 2026-10-27 02:52 EDT | METAR | 7.8° | 7.2° | 0 | METAR KIAD 270652Z 00000KT 10SM CLR 08/07 A3024 RMK AO2 SLP241 T00780072 |
| 2026-10-27 03:52 EDT | METAR | 7.2°min | 6.7° | 0 | METAR KIAD 270752Z 00000KT 10SM CLR 07/07 A3025 RMK AO2 SLP242 T00720067 |
| 2026-10-27 04:52 EDT | METAR | 7.2° | 6.7° | 0 | METAR KIAD 270852Z 00000KT 10SM CLR 07/07 A3026 RMK AO2 SLP247 T00720067 53005 |
| 2026-10-27 05:52 EDT | METAR | 7.2° | 6.1° | 0 | METAR KIAD 270952Z 00000KT 10SM CLR 07/06 A3028 RMK AO2 SLP252 T00720061 |
| 2026-10-27 06:52 EDT | METAR | 7.8° | 6.7° | 2.1 | METAR KIAD 271052Z 05004KT 10SM CLR 08/07 A3029 RMK AO2 SLP259 T00780067 |
| 2026-10-27 07:52 EDT | METAR | 7.8° | 6.7° | 0 | METAR KIAD 271152Z 00000KT 9SM CLR 08/07 A3032 RMK AO2 SLP268 T00780067 10089 20067 53020 |
| 2026-10-27 08:52 EDT | METAR | 12.8° | 9.4° | 2.1 | METAR KIAD 271252Z 05004KT 9SM CLR 13/09 A3036 RMK AO2 SLP279 T01280094 |
| 2026-10-27 10:52 EDT | METAR | 17.8° | 8.9° | 2.6 | METAR KIAD 271452Z 36005KT 10SM CLR 18/09 A3037 RMK AO2 SLP282 T01780089 51015 |
| 2026-10-27 11:52 EDT | METAR | 19.4° | 9.4° | 2.6 | METAR KIAD 271552Z 04005KT 10SM CLR 19/09 A3036 RMK AO2 SLP281 T01940094 |
| 2026-10-27 12:52 EDT | METAR | 20° | 9.4° | 2.6 | METAR KIAD 271652Z 02005KT 10SM CLR 20/09 A3035 RMK AO2 SLP277 T02000094 |
| 2026-10-27 13:52 EDT | METAR | 21.1° | 10° | 0 | METAR KIAD 271752Z 00000KT 10SM CLR 21/10 A3033 RMK AO2 SLP270 T02110100 10211 20072 58012 |
| 2026-10-27 14:52 EDT | METAR | 21.7° | 10° | 2.1 | METAR KIAD 271852Z VRB04KT 10SM CLR 22/10 A3032 RMK AO2 SLP265 T02170100 |
| 2026-10-27 15:52 EDT | METAR | 21.7° | 10° | 1.5 | METAR KIAD 271952Z VRB03KT 10SM CLR 22/10 A3031 RMK AO2 SLP263 T02170100 |
| 2026-10-27 16:52 EDT | METAR | 22.2°max | 10° | 0 | METAR KIAD 272052Z 00000KT 10SM FEW250 22/10 A3031 RMK AO2 SLP262 T02220100 56007 |
| 2026-10-27 17:52 EDT | METAR | 20.6° | 10° | 0 | METAR KIAD 272152Z 00000KT 10SM FEW250 21/10 A3031 RMK AO2 SLP263 T02060100 |
| 2026-10-27 18:52 EDT | METAR | 16.1° | 11.1° | 1.5 | METAR KIAD 272252Z 09003KT 10SM FEW250 16/11 A3031 RMK AO2 SLP265 T01610111 |
| 2026-10-27 19:52 EDT | METAR | 15° | 11.1° | 0 | METAR KIAD 272352Z 00000KT 10SM CLR 15/11 A3032 RMK AO2 SLP269 T01500111 10222 20144 53005 |
| 2026-10-27 20:52 EDT | METAR | 15° | 10.6° | 1.5 | METAR KIAD 280052Z 11003KT 10SM CLR 15/11 A3033 RMK AO2 SLP270 T01500106 |
| 2026-10-27 21:52 EDT | METAR | 13.3° | 10° | 0 | METAR KIAD 280152Z 00000KT 10SM CLR 13/10 A3034 RMK AO2 SLP275 T01330100 |
| 2026-10-27 22:52 EDT | METAR | 11.1° | 10° | 0 | METAR KIAD 280252Z 00000KT 10SM CLR 11/10 A3036 RMK AO2 SLP281 T01110100 53013 |
| 2026-10-27 23:52 EDT | METAR | 10° | 9.4° | 1.5 | METAR KIAD 280352Z 11003KT 10SM CLR 10/09 A3037 RMK AO2 SLP284 T01000094 $ |
Settlement source: the METAR-derived station-day record for KIAD for the contract date (station-local calendar day), as published at https://weathermarket.io/station/KIAD/2026-10-27 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/KIAD/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/KIAD/YYYY-MM-DD (JSON).