Station-day record · settlement source
Washington D.C. · America/New_York · ← 2026-10-11 · 2026-10-13 → · All dates for KIAD · JSON
METAR KIAD 122052Z 29012KT 10SM BKN041 BKN250 24/15 A2991 RMK AO2 SLP128 T02390150 55007 $
METAR KIAD 130252Z 14003KT 10SM CLR 15/14 A2997 RMK AO2 SLP146 T01500139 53010 $
Local day 2026-10-12 00:00 EDT → 2026-10-13 00:00 EDT (24 h, UTC-04:00) · 30 reports · longest gap 60 min
High 76°F (24.44°C) · Low 57°F (13.89°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 2026-10-13 03:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 a9dadb958af04c2b29705e813e5ec6754ebe93564db6f982e7c54dff8c424b5d
Transaction 0x812b93f68571d3c6ae72c3c45f9d77063b9a63d8624e3739b1f100665395307b · 2026-10-13 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 30 · 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 |
|---|---|---|---|---|---|
| 2026-10-12 00:03 EDT | SPECI | 16.1° | 15.6° | 4.6 | SPECI KIAD 120403Z 34009KT 5SM BR OVC008 16/16 A2976 RMK AO2 T01610156 $ |
| 2026-10-12 00:34 EDT | SPECI | 15.6° | 15° | 5.7 | SPECI KIAD 120434Z 34011KT 4SM -RA BR OVC006 16/15 A2975 RMK AO2 RAB30 P0000 T01560150 $ |
| 2026-10-12 00:52 EDT | METAR | 15.6° | 15° | 6.2 | METAR KIAD 120452Z 34012KT 4SM -RA BR OVC006 16/15 A2975 RMK AO2 RAB30 SLP072 P0000 T01560150 401720156 $ |
| 2026-10-12 01:52 EDT | METAR | 15.6° | 14.4° | 7.7 | METAR KIAD 120552Z 35015G27KT 4SM R01R/3000VP6000FT -RA BR BKN008 OVC018 16/14 A2974 RMK AO2 PK WND 35027/0544 SLP068 P0014 60014 T01560144 10161 20156 56016 $ |
| 2026-10-12 02:52 EDT | METAR | 15.6° | 14.4° | 5.7 | METAR KIAD 120652Z 34011KT 4SM -RA BR BKN009 OVC020 16/14 A2975 RMK AO2 SLP074 P0053 T01560144 $ |
| 2026-10-12 03:52 EDT | METAR | 15.6° | 14.4° | 5.7 | METAR KIAD 120752Z 32011G20KT 4SM -RA BR SCT010 BKN015 OVC030 16/14 A2976 RMK AO2 SLP076 P0018 T01560144 $ |
| 2026-10-12 04:52 EDT | METAR | 15.6° | 14.4° | 5.7 | METAR KIAD 120852Z 33011KT 6SM BR BKN010 BKN015 OVC030 16/14 A2978 RMK AO2 RAE50 SLP083 P0011 60082 T01560144 53015 $ |
| 2026-10-12 05:44 EDT | SPECI | 15.6° | 13.9° | 5.1 | SPECI KIAD 120944Z 33010KT 6SM BR FEW008 BKN010 OVC037 16/14 A2982 RMK AO2 T01560139 $ |
| 2026-10-12 05:52 EDT | METAR | 15.6° | 13.9° | 4.6 | METAR KIAD 120952Z 33009G17KT 6SM BR FEW008 BKN010 OVC037 16/14 A2982 RMK AO2 SLP097 T01560139 $ |
| 2026-10-12 06:44 EDT | SPECI | 15.6° | 13.9° | 4.1 | SPECI KIAD 121044Z 33008KT 6SM BR SCT019 BKN044 16/14 A2984 RMK AO2 T01560139 $ |
| 2026-10-12 06:52 EDT | METAR | 15.6° | 13.9° | 5.1 | METAR KIAD 121052Z 33010KT 6SM BR FEW018 BKN044 16/14 A2985 RMK AO2 SLP106 T01560139 $ |
| 2026-10-12 07:52 EDT | METAR | 16.1° | 13.9° | 5.7 | METAR KIAD 121152Z 32011G18KT 10SM BKN033 16/14 A2986 RMK AO2 SLP110 60082 70192 T01610139 10161 20150 51027 $ |
| 2026-10-12 08:52 EDT | METAR | 17.8° | 13.9° | 2.6 | METAR KIAD 121252Z VRB05KT 10SM BKN035 18/14 A2988 RMK AO2 SLP116 T01780139 $ |
| 2026-10-12 09:52 EDT | METAR | 18.9° | 13.9° | 6.2 | METAR KIAD 121352Z 32012G23KT 10SM BKN034 19/14 A2990 RMK AO2 SLP124 T01890139 $ |
| 2026-10-12 10:41 EDT | SPECI | 19.4° | 14.4° | 7.2 | SPECI KIAD 121441Z 34014G21KT 10SM BKN027 BKN032 19/14 A2992 RMK AO2 PK WND 32027/1422 T01940144 $ |
| 2026-10-12 10:52 EDT | METAR | 20° | 14.4° | 7.2 | METAR KIAD 121452Z 33014G24KT 10SM BKN027 BKN033 20/14 A2992 RMK AO2 PK WND 32027/1422 SLP130 T02000144 51021 $ |
| 2026-10-12 11:52 EDT | METAR | 20.6° | 14.4° | 6.2 | METAR KIAD 121552Z 32012G19KT 10SM BKN029 21/14 A2994 RMK AO2 PK WND 31026/1459 SLP136 T02060144 $ |
| 2026-10-12 12:52 EDT | METAR | 21.1° | 14.4° | 6.2 | METAR KIAD 121652Z 34012G19KT 10SM BKN029 21/14 A2995 RMK AO2 SLP138 T02110144 $ |
| 2026-10-12 12:54 EDT | SPECI | 21.1° | 14.4° | 6.7 | SPECI KIAD 121654Z 33013G19KT 10SM BKN030 21/14 A2995 RMK AO2 T02110144 $ |
| 2026-10-12 13:52 EDT | METAR | 22.8° | 15° | 3.6 | METAR KIAD 121752Z 34007KT 10SM BKN033 23/15 A2993 RMK AO2 SLP134 T02280150 10228 20161 50004 $ |
| 2026-10-12 14:52 EDT | METAR | 22.8° | 15.6° | 3.6 | METAR KIAD 121852Z 30007KT 270V330 10SM SCT035 BKN250 23/16 A2992 RMK AO2 SLP129 T02280156 $ |
| 2026-10-12 15:52 EDT | METAR | 23.3° | 15.6° | 5.1 | METAR KIAD 121952Z 32010KT 10SM BKN040 BKN250 23/16 A2991 RMK AO2 SLP126 T02330156 $ |
| 2026-10-12 16:52 EDT | METAR | 23.9°max | 15° | 6.2 | METAR KIAD 122052Z 29012KT 10SM BKN041 BKN250 24/15 A2991 RMK AO2 SLP128 T02390150 55007 $ |
| 2026-10-12 17:52 EDT | METAR | 22.2° | 15° | 5.7 | METAR KIAD 122152Z 29011G18KT 10SM FEW041 SCT200 22/15 A2992 RMK AO2 SLP130 T02220150 $ |
| 2026-10-12 18:52 EDT | METAR | 21.1° | 14.4° | 6.7 | METAR KIAD 122252Z 29013KT 10SM FEW100 SCT200 21/14 A2992 RMK AO2 SLP129 T02110144 $ |
| 2026-10-12 19:52 EDT | METAR | 20° | 14.4° | 2.1 | METAR KIAD 122352Z 30004KT 10SM FEW100 SCT200 20/14 A2994 RMK AO2 SLP136 T02000144 10244 20200 53008 $ |
| 2026-10-12 20:52 EDT | METAR | 17.2° | 14.4° | 0 | METAR KIAD 130052Z 00000KT 10SM FEW100 SCT200 17/14 A2994 RMK AO2 SLP138 T01720144 $ |
| 2026-10-12 21:52 EDT | METAR | 17.8° | 14.4° | 1.5 | METAR KIAD 130152Z 32003KT 10SM CLR 18/14 A2996 RMK AO2 SLP142 T01780144 $ |
| 2026-10-12 22:52 EDT | METAR | 15°min | 13.9° | 1.5 | METAR KIAD 130252Z 14003KT 10SM CLR 15/14 A2997 RMK AO2 SLP146 T01500139 53010 $ |
| 2026-10-12 23:52 EDT | METAR | 15° | 13.3° | 0 | METAR KIAD 130352Z 00000KT 10SM CLR 15/13 A2998 RMK AO2 SLP150 T01500133 $ |
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/2026-10-12 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).