Station-day record · settlement source
Washington D.C. · America/New_York · ← 2026-10-22 · 2026-10-24 → · All dates for KIAD · JSON
METAR KIAD 231852Z 02005KT 9SM SCT047 17/04 A3033 RMK AO2 SLP271 T01720039
METAR KIAD 230752Z 00000KT 10SM CLR 05/03 A3021 RMK AO2 SLP230 T00500028
Local day 2026-10-23 00:00 EDT → 2026-10-24 00:00 EDT (24 h, UTC-04:00) · 24 reports · longest gap 60 min
High 64°F (17.78°C) · Low 41°F (5°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 2026-10-24 03:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 42f46fa438911f65377a358f2ad7575e8052f75bb9187eb41c4a01218c6cb5b0
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 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 |
|---|---|---|---|---|---|
| 2026-10-23 00:52 EDT | METAR | 6.7° | 2.8° | 0 | METAR KIAD 230452Z 00000KT 10SM CLR 07/03 A3018 RMK AO2 SLP219 T00670028 402000022 |
| 2026-10-23 01:52 EDT | METAR | 6.7° | 2.2° | 1.5 | METAR KIAD 230552Z 31003KT 10SM CLR 07/02 A3019 RMK AO2 SLP224 T00670022 10167 20061 53012 |
| 2026-10-23 02:52 EDT | METAR | 6.1° | 2.8° | 0 | METAR KIAD 230652Z 00000KT 10SM CLR 06/03 A3021 RMK AO2 SLP229 T00610028 |
| 2026-10-23 03:52 EDT | METAR | 5°min | 2.8° | 0 | METAR KIAD 230752Z 00000KT 10SM CLR 05/03 A3021 RMK AO2 SLP230 T00500028 |
| 2026-10-23 04:52 EDT | METAR | 6.7° | 3.3° | 2.1 | METAR KIAD 230852Z 33004KT 10SM CLR 07/03 A3023 RMK AO2 SLP236 T00670033 53012 |
| 2026-10-23 05:52 EDT | METAR | 6.7° | 3.9° | 1.5 | METAR KIAD 230952Z 33003KT 10SM CLR 07/04 A3025 RMK AO2 SLP242 T00670039 |
| 2026-10-23 06:52 EDT | METAR | 10.6° | 5.6° | 2.6 | METAR KIAD 231052Z 36005KT 10SM CLR 11/06 A3028 RMK AO2 SLP252 T01060056 |
| 2026-10-23 07:52 EDT | METAR | 10.6° | 5.6° | 3.1 | METAR KIAD 231152Z 36006KT 10SM FEW046 11/06 A3030 RMK AO2 SLP261 T01060056 10106 20050 53025 |
| 2026-10-23 08:52 EDT | METAR | 11.7° | 5.6° | 4.6 | METAR KIAD 231252Z 01009KT 10SM BKN045 12/06 A3033 RMK AO2 SLP271 T01170056 |
| 2026-10-23 09:52 EDT | METAR | 12.8° | 5.6° | 3.6 | METAR KIAD 231352Z 03007KT 10SM FEW045 13/06 A3035 RMK AO2 SLP275 T01280056 |
| 2026-10-23 10:52 EDT | METAR | 14.4° | 5.6° | 4.1 | METAR KIAD 231452Z 04008KT 10SM FEW045 14/06 A3036 RMK AO2 SLP281 T01440056 51019 |
| 2026-10-23 11:52 EDT | METAR | 15.6° | 4.4° | 4.1 | METAR KIAD 231552Z 02008KT 10SM FEW045 16/04 A3036 RMK AO2 SLP281 T01560044 |
| 2026-10-23 12:52 EDT | METAR | 15° | 3.9° | 2.1 | METAR KIAD 231652Z VRB04KT 10SM SCT045 15/04 A3035 RMK AO2 SLP279 T01500039 |
| 2026-10-23 13:52 EDT | METAR | 16.7° | 4.4° | 3.1 | METAR KIAD 231752Z 06006KT 10SM SCT047 17/04 A3034 RMK AO2 SLP273 T01670044 10172 20106 58007 |
| 2026-10-23 14:52 EDT | METAR | 17.2°max | 3.9° | 2.6 | METAR KIAD 231852Z 02005KT 9SM SCT047 17/04 A3033 RMK AO2 SLP271 T01720039 |
| 2026-10-23 15:52 EDT | METAR | 17.2° | 4.4° | 4.1 | METAR KIAD 231952Z 03008KT 10SM FEW050 FEW250 17/04 A3033 RMK AO2 SLP272 T01720044 |
| 2026-10-23 16:52 EDT | METAR | 17.2° | 4.4° | 2.1 | METAR KIAD 232052Z 06004KT 10SM FEW050 FEW250 17/04 A3034 RMK AO2 SLP275 T01720044 53002 |
| 2026-10-23 17:52 EDT | METAR | 15.6° | 5° | 3.1 | METAR KIAD 232152Z 07006KT 10SM FEW050 FEW250 16/05 A3036 RMK AO2 SLP280 T01560050 |
| 2026-10-23 18:52 EDT | METAR | 12.8° | 4.4° | 2.6 | METAR KIAD 232252Z 07005KT 10SM FEW250 13/04 A3037 RMK AO2 SLP285 T01280044 |
| 2026-10-23 19:52 EDT | METAR | 12.2° | 4.4° | 2.6 | METAR KIAD 232352Z 10005KT 10SM CLR 12/04 A3040 RMK AO2 SLP295 T01220044 10178 20122 53020 |
| 2026-10-23 20:52 EDT | METAR | 10.6° | 3.9° | 0 | METAR KIAD 240052Z 00000KT 10SM CLR 11/04 A3042 RMK AO2 SLP301 T01060039 |
| 2026-10-23 21:52 EDT | METAR | 7.8° | 4.4° | 0 | METAR KIAD 240152Z 00000KT 10SM CLR 08/04 A3044 RMK AO2 SLP306 T00780044 |
| 2026-10-23 22:52 EDT | METAR | 7.2° | 3.9° | 0 | METAR KIAD 240252Z 00000KT 10SM CLR 07/04 A3045 RMK AO2 SLP310 T00720039 51015 $ |
| 2026-10-23 23:52 EDT | METAR | 6.1° | 3.9° | 0 | METAR KIAD 240352Z 00000KT 10SM FEW250 06/04 A3045 RMK AO2 SLP312 T00610039 $ |
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/2026-10-23 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).