Station-day record · settlement source
Washington D.C. · America/New_York · ← 2026-10-27 · 2026-10-29 → · All dates for KIAD · JSON
METAR KIAD 281852Z 13007KT 9SM FEW030 BKN250 19/10 A3036 RMK AO2 SLP281 T01890100
METAR KIAD 280952Z 00000KT 6SM R01R/5000VP6000FT BR FEW010 08/07 A3040 RMK AO2 SLP294 T00780072 $
Local day 2026-10-28 00:00 EDT → 2026-10-29 00:00 EDT (24 h, UTC-04:00) · 26 reports · longest gap 60 min
High 67°F (19.44°C) · Low 45°F (7.22°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 2026-10-29 03:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
1 report(s) in this day were re-issued after first publication; the original text is shown struck through in the table.
SHA-256 b5162be79b6af5bbfa57961a7617424db2e359d10df24b6c5a798da5e6e1b1da
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 26 · 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 |
|---|---|---|---|---|---|
| 2026-10-28 00:52 EDT | METAR | 11.1° | 9.4° | 1.5 | METAR KIAD 280452Z 17003KT 10SM CLR 11/09 A3038 RMK AO2 SLP286 T01110094 402220067 $ |
| 2026-10-28 01:52 EDT | METAR | 9.4° | 8.9° | 0 | METAR KIAD 280552Z 00000KT 10SM CLR 09/09 A3038 RMK AO2 SLP288 T00940089 10156 20094 51007 $ |
| 2026-10-28 02:52 EDT | METAR | 8.9° | 8.3° | 0 | METAR KIAD 280652Z 00000KT 7SM CLR 09/08 A3039 RMK AO2 SLP289 T00890083 $ |
| 2026-10-28 03:52 EDT | METAR | 8.9° | 8.3° | 0 | METAR KIAD 280752Z 00000KT 7SM CLR 09/08 A3038 RMK AO2 SLP288 T00890083 $ |
| 2026-10-28 04:52 EDT | METAR | 8.3° | 7.8° | 1.5 | METAR KIAD 280852Z 29003KT 6SM R01R/5500VP6000FT BR FEW010 08/08 A3039 RMK AO2 SLP289 T00830078 52001 $ |
| 2026-10-28 05:52 EDT | METAR | 7.8°min | 7.2° | 0 | METAR KIAD 280952Z 00000KT 6SM R01R/5000VP6000FT BR FEW010 08/07 A3040 RMK AO2 SLP294 T00780072 $ |
| 2026-10-28 06:39 EDT | SPECI | 7.8° | 7.8° | 0 | SPECI KIAD 281039Z 00000KT 6SM BR FEW007 BKN013 08/08 A3041 RMK AO2 T00780078 $ |
| 2026-10-28 06:52 EDT | METAR | 8.3° | 7.8° | 0 | METAR KIAD 281052Z 00000KT 6SM BR SCT008 BKN013 08/08 A3041 RMK AO2 SLP298 T00830078 $ |
| 2026-10-28 07:21 EDT | SPECI | 8.3° | 7.8° | 0 | SPECI KIAD 281121Z 00000KT 6SM BR FEW008 SCT012 SCT090 BKN250 08/08 A3042 RMK AO2 T00830078 |
| 2026-10-28 07:52 EDT | METAR | 8.3° | 7.8° | 0 | METAR KIAD 281152Z 00000KT 6SM BR FEW007 SCT012 SCT090 BKN250 08/08 A3042 RMK AO2 SLP303 T00830078 10094 20072 51012 |
| 2026-10-28 08:52 EDT | METAR | 11.7° | 10° | 0 | METAR KIAD 281252Z 00000KT 7SM FEW007 FEW012 SCT250 12/10 A3044 RMK AO2 SLP307 T01170100 |
| 2026-10-28 09:52 EDT | METAR | 13.9° | 11.1° | 0 | METAR KIAD 281352Z 00000KT 10SM FEW038 BKN250 14/11 A3044 RMK AO2 SLP309 T01390111 |
| 2026-10-28 10:52 EDT | METAR | 16.1° | 10.6° | 0 | METAR KIAD 281452Z 00000KT 10SM FEW035 FEW080 BKN250 16/11 A3044 RMK AO2 SLP307 T01610106 50006 |
| 2026-10-28 11:52 EDT | METAR | 16.7° | 10° | 0 | METAR KIAD 281552Z 00000KT 10SM FEW025 FEW035 BKN250 17/10 A3043 RMK AO2 SLP303 T01670100 |
| 2026-10-28 12:52 EDT | METAR | 18.3° | 10° | 0 | METAR KIAD 281652Z 00000KT 10SM FEW025 FEW035 BKN250 18/10 A3040 RMK AO2 SLP294 T01830100 |
| 2026-10-28 13:52 EDT | METAR | 18.3° | 9.4° | 0 | METAR KIAD 281752Z 00000KT 10SM FEW030 BKN250 18/09 A3038 RMK AO2 SLP287 T01830094 10183 20083 58020 |
| 2026-10-28 14:52 EDT | METAR | 18.9°max | 10° | 3.6 | METAR KIAD 281852Z 13007KT 9SM FEW030 BKN250 19/10 A3036 RMK AO2 SLP281 T01890100 |
| 2026-10-28 15:52 EDT | METAR | 18.3° | 10.6° | 3.1 | METAR KIAD 281952Z 15006KT 10SM FEW038 BKN110 OVC200 18/11 A3035 RMK AO2 SLP278 T01830106 |
| 2026-10-28 16:52 EDT | METAR | 17.8° | 10° | 2.6 | METAR KIAD 282052Z 15005KT 10SM FEW040 BKN110 OVC200 18/10 A3035 RMK AO2 SLP275 T01780100 56012 |
| 2026-10-28 17:52 EDT | METAR | 17.2° | 10.6° | 0 | METAR KIAD 282152Z 00000KT 10SM BKN100 BKN200 17/11 A3035 RMK AO2 SLP275 T01720106 |
| 2026-10-28 18:52 EDT | METAR | 16.1° | 10.6° | 1.5 | METAR KIAD 282252Z 15003KT 10SM BKN110 BKN200 16/11 A3034 RMK AO2 SLP276 T01610106 |
| 2026-10-28 19:52 EDT | METAR | 15° | 9.4° | 2.1 | METAR KIAD 282352Z 13004KT 10SM BKN110 BKN200 15/09 A3035 RMK AO2 SLP276 T01500094 10194 20144 55000 |
| 2026-10-28 20:52 EDT | METAR | 14.4° | 8.3° | 1.5 | METAR KIAD 290052Z 12003KT 10SM SCT110 SCT200 14/08 A3035 RMK AO2 SLP275 T01440083 |
| 2026-10-28 21:52 EDT | METAR | 12.2° | 8.3° | 1.5 | METAR KIAD 290152Z 11003KT 10SM FEW120 12/08 A3034 RMK AO2 SLP275 T01220083 |
| 2026-10-28 22:52 EDT | METAR | 10° | 8.3° | 0 | METAR KIAD 290252Z 00000KT 10SM FEW120 10/08 A3034 RMK AO2 SLP273 T01000083 58002 |
| 2026-10-28 23:52 EDT | METAR | 10° | 8.3° | 0 | METAR KIAD 290352Z COR 00000KT 10SM SCT033 SCT120 10/08 A3034 RMK AO2 SLP272 T01000083 original: METAR KIAD 290352Z 00000KT 10SM BKN033 10/08 A3034 RMK AO2 SLP272 T01000083 |
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/2026-10-28 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).