Station-day record · settlement source
Washington D.C. · America/New_York · ← 2026-10-14 · 2026-10-16 → · All dates for KIAD · JSON
METAR KIAD 150452Z 35007KT 10SM BKN120 OVC160 24/20 A3001 RMK AO2 SLP159 T02440200 403170172 $
METAR KIAD 160252Z 14003KT 4SM -RA BR BKN015 OVC021 15/14 A3012 RMK AO2 DZE16RAB16 SLP199 P0005 60006 T01500144 58010 $
Local day 2026-10-15 00:00 EDT → 2026-10-16 00:00 EDT (24 h, UTC-04:00) · 29 reports · longest gap 60 min
High 77°F (25°C) · Low 59°F (15°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 2026-10-16 03:00 EDT · correction hold 3 h after local midnight
longest gap 60 min · limit 90 min
SHA-256 6f12af47062d1b3e66c154ee229d2975961cebc5bc956199e5161a8c75805e6c
Transaction 0x7d4f39f2ba154f5b3af8ec80cf74a3eb6156c10ea4da864d546c688da74598ee · 2026-10-16 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 29 · 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 |
|---|---|---|---|---|---|
| 2026-10-15 00:52 EDT | METAR | 24.4°max | 20° | 3.6 | METAR KIAD 150452Z 35007KT 10SM BKN120 OVC160 24/20 A3001 RMK AO2 SLP159 T02440200 403170172 $ |
| 2026-10-15 01:52 EDT | METAR | 23.9° | 20° | 2.6 | METAR KIAD 150552Z 34005KT 10SM OVC140 24/20 A3001 RMK AO2 SLP158 60000 T02390200 10272 20239 50002 $ |
| 2026-10-15 02:52 EDT | METAR | 23.9° | 19.4° | 3.6 | METAR KIAD 150652Z 02007KT 10SM OVC150 24/19 A3003 RMK AO2 SLP165 T02390194 $ |
| 2026-10-15 03:52 EDT | METAR | 22.2° | 17.8° | 6.2 | METAR KIAD 150752Z 01012G18KT 10SM OVC170 22/18 A3006 RMK AO2 SLP174 T02220178 $ |
| 2026-10-15 04:52 EDT | METAR | 21.7° | 16.1° | 4.6 | METAR KIAD 150852Z 02009G16KT 10SM OVC070 22/16 A3008 RMK AO2 SLP181 T02170161 53023 $ |
| 2026-10-15 05:52 EDT | METAR | 20.6° | 16.1° | 4.6 | METAR KIAD 150952Z 03009KT 10SM OVC070 21/16 A3011 RMK AO2 SLP192 T02060161 $ |
| 2026-10-15 06:52 EDT | METAR | 19.4° | 14.4° | 4.6 | METAR KIAD 151052Z 01009KT 10SM BKN080 BKN140 19/14 A3013 RMK AO2 SLP201 T01940144 $ |
| 2026-10-15 07:52 EDT | METAR | 17.8° | 12.2° | 5.1 | METAR KIAD 151152Z 01010KT 10SM BKN038 BKN075 18/12 A3015 RMK AO2 SLP208 T01780122 10244 20178 51025 |
| 2026-10-15 08:52 EDT | METAR | 17.8° | 12.2° | 3.6 | METAR KIAD 151252Z 36007KT 10SM FEW065 BKN080 BKN170 18/12 A3018 RMK AO2 SLP219 T01780122 |
| 2026-10-15 09:52 EDT | METAR | 17.8° | 12.2° | 3.6 | METAR KIAD 151352Z 01007KT 10SM FEW024 SCT042 BKN075 18/12 A3020 RMK AO2 SLP223 T01780122 |
| 2026-10-15 10:50 EDT | SPECI | 18° | 13° | 4.1 | SPECI KIAD 151450Z 02008KT 10SM BKN023 BKN042 BKN080 18/13 A3020 RMK AO2 |
| 2026-10-15 10:52 EDT | METAR | 17.8° | 12.8° | 3.6 | METAR KIAD 151452Z 03007KT 7SM BKN023 BKN042 OVC080 18/13 A3020 RMK AO2 SLP223 T01780128 50005 |
| 2026-10-15 11:52 EDT | METAR | 18.9° | 12.8° | 3.6 | METAR KIAD 151552Z 08007KT 10SM SCT023 BKN043 OVC055 19/13 A3020 RMK AO2 SLP223 T01890128 |
| 2026-10-15 12:52 EDT | METAR | 18.3° | 12.2° | 2.1 | METAR KIAD 151652Z 07004KT 7SM FEW043 OVC050 18/12 A3019 RMK AO2 SLP220 T01830122 |
| 2026-10-15 13:52 EDT | METAR | 18.3° | 11.7° | 3.1 | METAR KIAD 151752Z 11006KT 7SM FEW027 OVC030 18/12 A3018 RMK AO2 SLP217 T01830117 10194 20172 58007 |
| 2026-10-15 14:52 EDT | METAR | 17.8° | 11.7° | 2.1 | METAR KIAD 151852Z 10004KT 9SM FEW025 BKN031 OVC050 18/12 A3017 RMK AO2 SLP215 VCSH S-SW T01780117 |
| 2026-10-15 15:14 EDT | SPECI | 16.7° | 12.2° | 2.6 | SPECI KIAD 151914Z 10005KT 3SM -RA BR FEW025 BKN031 OVC042 17/12 A3017 RMK AO2 RAB03 VIS NW 2 1/2 P0001 T01670122 |
| 2026-10-15 15:38 EDT | SPECI | 16.1° | 13.9° | 2.1 | SPECI KIAD 151938Z 12004KT 9SM -RA FEW025 SCT031 OVC040 16/14 A3017 RMK AO2 RAB03 P0005 T01610139 |
| 2026-10-15 15:52 EDT | METAR | 15.6° | 13.9° | 2.1 | METAR KIAD 151952Z 13004KT 5SM -RA BR FEW018 SCT029 OVC040 16/14 A3016 RMK AO2 RAB03 SLP213 P0005 T01560139 |
| 2026-10-15 16:52 EDT | METAR | 15.6° | 13.3° | 2.1 | METAR KIAD 152052Z 11004KT 10SM FEW011 SCT026 OVC037 16/13 A3016 RMK AO2 RAE25 SLP211 SCT V BKN P0002 60007 T01560133 56005 |
| 2026-10-15 17:52 EDT | METAR | 15.6° | 13.9° | 2.1 | METAR KIAD 152152Z 11004KT 10SM FEW011 BKN026 OVC031 16/14 A3015 RMK AO2 SLP208 BKN V SCT T01560139 |
| 2026-10-15 18:52 EDT | METAR | 15.6° | 14.4° | 2.1 | METAR KIAD 152252Z 10004KT 10SM FEW007 SCT018 OVC023 16/14 A3015 RMK AO2 SLP207 T01560144 |
| 2026-10-15 19:52 EDT | METAR | 15.6° | 13.9° | 1.5 | METAR KIAD 152352Z 12003KT 10SM -RA FEW007 SCT018 OVC024 16/14 A3015 RMK AO2 RAB51 SLP209 P0000 60007 T01560139 10183 20150 55003 |
| 2026-10-15 20:52 EDT | METAR | 15.6° | 14.4° | 0 | METAR KIAD 160052Z 00000KT 7SM -RA FEW009 FEW014 OVC023 16/14 A3015 RMK AO2 SLP208 P0000 T01560144 |
| 2026-10-15 21:52 EDT | METAR | 15.6° | 14.4° | 1.5 | METAR KIAD 160152Z 16003KT 7SM -DZ FEW009 SCT018 OVC022 16/14 A3013 RMK AO2 RAE08DZB26 SLP202 SCT V BKN P0001 T01560144 |
| 2026-10-15 22:16 EDT | SPECI | 15.6° | 14.4° | 1.5 | SPECI KIAD 160216Z 16003KT 4SM -RA BR OVC022 16/14 A3013 RMK AO2 DZE16RAB16 P0000 T01560144 |
| 2026-10-15 22:52 EDT | METAR | 15°min | 14.4° | 1.5 | METAR KIAD 160252Z 14003KT 4SM -RA BR BKN015 OVC021 15/14 A3012 RMK AO2 DZE16RAB16 SLP199 P0005 60006 T01500144 58010 $ |
| 2026-10-15 23:41 EDT | SPECI | 15.6° | 14.4° | 0 | SPECI KIAD 160341Z 00000KT 5SM BR OVC018 16/14 A3010 RMK AO2 RAE22 P0000 T01560144 $ |
| 2026-10-15 23:52 EDT | METAR | 15.6° | 15° | 1.5 | METAR KIAD 160352Z 16003KT 5SM BR OVC018 16/15 A3009 RMK AO2 RAE22 SLP187 P0000 T01560150 $ |
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/2026-10-15 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).