Station-day record · settlement source
Washington D.C. · America/New_York · ← 2026-10-09 · 2026-10-11 → · All dates for KIAD · JSON
METAR KIAD 101652Z 08006KT 10SM BKN190 OVC250 21/10 A3040 RMK AO2 SLP292 T02110100 $
METAR KIAD 100752Z 00000KT 10SM BKN250 10/09 A3029 RMK AO2 SLP255 T01000089 $
Local day 2026-10-10 00:00 EDT → 2026-10-11 00:00 EDT (24 h, UTC-04:00) · 24 reports · longest gap 60 min
High 70°F (21.11°C) · Low 49°F (9.44°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 2026-10-11 03:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 245b345f6c01506f03c085f7a20b8eb4309ce06f9d2cf4d4d21c20ed1aac58f3
Transaction 0x568cc4853f6ffd6dd964a6f60bb384d35f923eec4abff425af981c201f203de3 · 2026-10-11 03:01 EDT
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 |
|---|---|---|---|---|---|
| 2026-10-10 00:52 EDT | METAR | 11.7° | 9.4° | 0 | METAR KIAD 100452Z 00000KT 10SM BKN250 12/09 A3029 RMK AO2 SLP255 T01170094 402440072 |
| 2026-10-10 01:52 EDT | METAR | 10.6° | 9.4° | 0 | METAR KIAD 100552Z 00000KT 10SM FEW020 BKN250 11/09 A3031 RMK AO2 SLP260 T01060094 10167 20106 53008 |
| 2026-10-10 02:52 EDT | METAR | 10.6° | 8.9° | 0 | METAR KIAD 100652Z 00000KT 10SM SCT250 11/09 A3030 RMK AO2 SLP260 T01060089 $ |
| 2026-10-10 03:52 EDT | METAR | 10°min | 8.9° | 0 | METAR KIAD 100752Z 00000KT 10SM BKN250 10/09 A3029 RMK AO2 SLP255 T01000089 $ |
| 2026-10-10 04:52 EDT | METAR | 10.6° | 9.4° | 1.5 | METAR KIAD 100852Z 31003KT 10SM SCT250 11/09 A3030 RMK AO2 SLP259 T01060094 55002 $ |
| 2026-10-10 05:52 EDT | METAR | 11.1° | 9.4° | 0 | METAR KIAD 100952Z 00000KT 10SM BKN250 11/09 A3032 RMK AO2 SLP265 T01110094 $ |
| 2026-10-10 06:52 EDT | METAR | 11.1° | 9.4° | 2.6 | METAR KIAD 101052Z 33005KT 10SM BKN250 11/09 A3036 RMK AO2 SLP279 T01110094 $ |
| 2026-10-10 07:52 EDT | METAR | 11.7° | 9.4° | 2.1 | METAR KIAD 101152Z 33004KT 10SM OVC250 12/09 A3038 RMK AO2 SLP286 T01170094 10117 20094 52026 $ |
| 2026-10-10 08:52 EDT | METAR | 13.3° | 10.6° | 2.6 | METAR KIAD 101252Z 03005KT 10SM OVC250 13/11 A3038 RMK AO2 SLP286 T01330106 $ |
| 2026-10-10 09:52 EDT | METAR | 15° | 9.4° | 0 | METAR KIAD 101352Z 00000KT 10SM BKN220 OVC250 15/09 A3040 RMK AO2 SLP295 T01500094 $ |
| 2026-10-10 10:52 EDT | METAR | 17.8° | 10.6° | 0 | METAR KIAD 101452Z 00000KT 10SM BKN230 OVC250 18/11 A3042 RMK AO2 SLP300 T01780106 53015 $ |
| 2026-10-10 11:52 EDT | METAR | 20.6° | 11.1° | 2.6 | METAR KIAD 101552Z 09005KT 10SM BKN200 BKN250 21/11 A3041 RMK AO2 SLP298 T02060111 $ |
| 2026-10-10 12:52 EDT | METAR | 21.1°max | 10° | 3.1 | METAR KIAD 101652Z 08006KT 10SM BKN190 OVC250 21/10 A3040 RMK AO2 SLP292 T02110100 $ |
| 2026-10-10 13:52 EDT | METAR | 20.6° | 10° | 3.1 | METAR KIAD 101752Z 10006KT 10SM BKN160 OVC200 21/10 A3038 RMK AO2 SLP288 T02060100 10211 20117 58012 $ |
| 2026-10-10 14:52 EDT | METAR | 21.1° | 9.4° | 2.6 | METAR KIAD 101852Z 10005KT 10SM FEW050 BKN140 OVC200 21/09 A3036 RMK AO2 SLP278 T02110094 $ |
| 2026-10-10 15:52 EDT | METAR | 20.6° | 8.9° | 2.1 | METAR KIAD 101952Z 08004KT 10SM FEW050 FEW100 BKN130 21/09 A3036 RMK AO2 SLP280 ACC S T02060089 $ |
| 2026-10-10 16:52 EDT | METAR | 20.6° | 9.4° | 4.1 | METAR KIAD 102052Z 08008KT 10SM FEW050 FEW110 BKN130 BKN160 21/09 A3034 RMK AO2 SLP273 T02060094 56015 $ |
| 2026-10-10 17:52 EDT | METAR | 19.4° | 10.6° | 4.1 | METAR KIAD 102152Z 08008KT 10SM FEW050 FEW080 SCT110 BKN130 BKN200 19/11 A3033 RMK AO2 SLP269 VIRGA E T01940106 $ |
| 2026-10-10 18:52 EDT | METAR | 18.9° | 10.6° | 3.1 | METAR KIAD 102252Z 09006KT 10SM FEW050 FEW080 SCT120 BKN150 BKN200 19/11 A3033 RMK AO2 SLP269 T01890106 $ |
| 2026-10-10 19:52 EDT | METAR | 18.3° | 10.6° | 4.1 | METAR KIAD 102352Z 09008KT 10SM FEW043 FEW050 BKN120 18/11 A3033 RMK AO2 SLP270 T01830106 10211 20183 55002 $ |
| 2026-10-10 20:52 EDT | METAR | 18.3° | 10.6° | 4.1 | METAR KIAD 110052Z 09008KT 10SM FEW043 OVC110 18/11 A3033 RMK AO2 SLP269 T01830106 $ |
| 2026-10-10 21:52 EDT | METAR | 17.8° | 11.7° | 2.1 | METAR KIAD 110152Z 08004KT 10SM OVC095 18/12 A3034 RMK AO2 SLP274 T01780117 $ |
| 2026-10-10 22:52 EDT | METAR | 17.8° | 12.8° | 4.1 | METAR KIAD 110252Z 08008KT 10SM FEW050 OVC100 18/13 A3033 RMK AO2 SLP270 T01780128 50001 $ |
| 2026-10-10 23:52 EDT | METAR | 17.2° | 12.8° | 5.7 | METAR KIAD 110352Z 09011KT 10SM -RA OVC100 17/13 A3032 RMK AO2 RAB03E18B48 SLP264 P0000 T01720128 $ |
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/2026-10-10 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).