Station-day record · settlement source
Washington D.C. · America/New_York · ← 2026-10-21 · 2026-10-23 → · All dates for KIAD · JSON
METAR KIAD 221952Z 34011KT 10SM CLR 20/M01 A3007 RMK AO2 SLP181 T02001011
METAR KIAD 220852Z 00000KT 10SM CLR 03/03 A3008 RMK AO2 SLP187 T00330028 55006 $
Local day 2026-10-22 00:00 EDT → 2026-10-23 00:00 EDT (24 h, UTC-04:00) · 24 reports · longest gap 60 min
High 68°F (20°C) · Low 36°F (2.22°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 2026-10-23 03:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 edc26ab8a01428b32c0ecf6f5dcc89016c1e4befe872050f6fd81be330a953be
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 23 · 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 |
|---|---|---|---|---|---|
| 2026-10-22 00:52 EDT | METAR | 5.6° | 3.3° | 1.5 | METAR KIAD 220452Z 29003KT 10SM CLR 06/03 A3010 RMK AO2 SLP194 T00560033 401940056 $ |
| 2026-10-22 01:52 EDT | METAR | 5.6° | 3.3° | 0 | METAR KIAD 220552Z 00000KT 10SM CLR 06/03 A3010 RMK AO2 SLP193 T00560033 10150 20050 56009 $ |
| 2026-10-22 02:52 EDT | METAR | 5.6° | 3.3° | 1.5 | METAR KIAD 220652Z 33003KT 10SM CLR 06/03 A3009 RMK AO2 SLP191 T00560033 $ |
| 2026-10-22 03:52 EDT | METAR | 3.9° | 2.8° | 0 | METAR KIAD 220752Z 00000KT 10SM CLR 04/03 A3008 RMK AO2 SLP187 T00390028 $ |
| 2026-10-22 04:52 EDT | METAR | 3.3°min | 2.8° | 0 | METAR KIAD 220852Z 00000KT 10SM CLR 03/03 A3008 RMK AO2 SLP187 T00330028 55006 $ |
| 2026-10-22 05:52 EDT | METAR | 3.3° | 2.2° | 0 | METAR KIAD 220952Z 00000KT 9SM CLR 03/02 A3009 RMK AO2 SLP191 T00330022 $ |
| 2026-10-22 06:52 EDT | METAR | 3.3° | 2.8° | 0 | METAR KIAD 221052Z 00000KT 10SM CLR 03/03 A3010 RMK AO2 SLP193 T00330028 $ |
| 2026-10-22 07:52 EDT | METAR | 3.9° | 2.2° | 0 | METAR KIAD 221152Z 00000KT 10SM CLR 04/02 A3011 RMK AO2 SLP196 T00390022 10067 20022 51008 |
| 2026-10-22 08:52 EDT | METAR | 9.4° | 3.9° | 1.5 | METAR KIAD 221252Z 33003KT 10SM CLR 09/04 A3013 RMK AO2 SLP202 T00940039 |
| 2026-10-22 09:52 EDT | METAR | 12.2° | 2.8° | 4.1 | METAR KIAD 221352Z 34008KT 10SM CLR 12/03 A3014 RMK AO2 SLP205 T01220028 |
| 2026-10-22 10:52 EDT | METAR | 15° | 1.7° | 4.6 | METAR KIAD 221452Z 35009KT 10SM CLR 15/02 A3013 RMK AO2 SLP204 T01500017 50008 |
| 2026-10-22 11:52 EDT | METAR | 16.7° | -1.7° | 5.1 | METAR KIAD 221552Z 35010KT 10SM CLR 17/M02 A3012 RMK AO2 SLP200 T01671017 |
| 2026-10-22 12:52 EDT | METAR | 18.3° | -1.1° | 4.6 | METAR KIAD 221652Z 32009KT 10SM CLR 18/M01 A3011 RMK AO2 SLP195 T01831011 |
| 2026-10-22 13:52 EDT | METAR | 18.9° | -2.2° | 3.6 | METAR KIAD 221752Z 34007KT 10SM CLR 19/M02 A3009 RMK AO2 SLP188 T01891022 10189 20039 58016 |
| 2026-10-22 14:52 EDT | METAR | 19.4° | -2.2° | 4.6 | METAR KIAD 221852Z 32009KT 270V350 10SM CLR 19/M02 A3007 RMK AO2 SLP183 T01941022 |
| 2026-10-22 15:52 EDT | METAR | 20°max | -1.1° | 5.7 | METAR KIAD 221952Z 34011KT 10SM CLR 20/M01 A3007 RMK AO2 SLP181 T02001011 |
| 2026-10-22 16:52 EDT | METAR | 19.4° | -2.8° | 5.7 | METAR KIAD 222052Z 34011G17KT 10SM CLR 19/M03 A3007 RMK AO2 SLP182 T01941028 55006 |
| 2026-10-22 17:52 EDT | METAR | 18.3° | -1.1° | 3.6 | METAR KIAD 222152Z 33007KT 10SM CLR 18/M01 A3009 RMK AO2 SLP189 T01831011 |
| 2026-10-22 18:52 EDT | METAR | 17.2° | -2.2° | 4.6 | METAR KIAD 222252Z 34009KT 10SM CLR 17/M02 A3011 RMK AO2 SLP195 T01721022 |
| 2026-10-22 19:52 EDT | METAR | 16.7° | -1.7° | 4.6 | METAR KIAD 222352Z 35009KT 10SM CLR 17/M02 A3013 RMK AO2 SLP203 T01671017 10200 20161 53020 |
| 2026-10-22 20:52 EDT | METAR | 13.9° | 0° | 2.6 | METAR KIAD 230052Z 33005KT 10SM CLR 14/00 A3014 RMK AO2 SLP207 T01390000 |
| 2026-10-22 21:52 EDT | METAR | 12.8° | 0.6° | 2.6 | METAR KIAD 230152Z 33005KT 10SM CLR 13/01 A3015 RMK AO2 SLP209 T01280006 |
| 2026-10-22 22:52 EDT | METAR | 10° | 1.7° | 2.1 | METAR KIAD 230252Z 32004KT 10SM CLR 10/02 A3016 RMK AO2 SLP212 T01000017 51010 |
| 2026-10-22 23:52 EDT | METAR | 7.2° | 2.2° | 0 | METAR KIAD 230352Z 00000KT 10SM CLR 07/02 A3017 RMK AO2 SLP217 T00720022 |
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/2026-10-22 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).