{"station":{"icao":"KIAD","city":{"slug":"washington","name":"Washington D.C.","country":"United States"},"timezone":"America/New_York","lat":38.91,"lon":-77.04,"us":true,"html":"https://weathermarket.io/station/KIAD","json":"https://weathermarket.io/api/station/KIAD","nwsCli":{"html":"https://weathermarket.io/nws-cli/KIAD","json":"https://weathermarket.io/api/nws-cli/KIAD"}},"date":"2026-10-04","window":{"date":"2026-10-04","timezone":"America/New_York","dayStartUtc":"2026-10-04T04:00:00.000Z","dayEndUtc":"2026-10-05T04:00:00.000Z","utcOffsetStart":"-04:00","utcOffsetEnd":"-04:00","hours":24},"complete":true,"values":{"tmax":17.8,"tmaxAt":"2026-10-04T19:18:00.000Z","tmin":15.6,"tminAt":"2026-10-04T05:52:00.000Z","tavg":16.5,"humidityMean":94.1,"windMean":1.8,"windMax":4.1,"windMaxAt":"2026-10-04T10:52:00.000Z","precipObservedCount":18,"nObservations":41,"maxGapMinutes":60,"units":{"temperature":"°C","wind":"m/s","humidity":"%"},"source":"Extremes over the METAR observations listed in this record (hourly plus special reports) - the same record values.metarDerived carries in /api/station/{icao}/daily"},"extremes":{"tmax":{"obsTimeUtc":"2026-10-04T19:18:00.000Z","obsTimeLocal":"2026-10-04T15:18:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041918Z 03004KT 7SM SCT006 BKN012 OVC018 18/16 A3011 RMK AO2 T01780161 $","temp":17.8,"dewpoint":16.1,"humidity":90,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-04T05:52:00.000Z","obsTimeLocal":"2026-10-04T01:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 040552Z 00000KT 5SM -RA BR BKN016 OVC024 16/14 A3023 RMK AO2 RAE10B28 SLP236 P0000 60000 T01560144 10161 20156 58009 $","temp":15.6,"dewpoint":14.4,"humidity":93,"wind":0,"precipObserved":true,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-04T10:52:00.000Z","obsTimeLocal":"2026-10-04T06:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041052Z 07008KT 10SM BKN008 OVC012 16/15 A3019 RMK AO2 SLP222 T01610150 $","temp":16.1,"dewpoint":15,"humidity":93,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-05T07:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":60,"normalIntervalMin":60,"thresholdMinutes":90},"reasons":[],"holdHours":3},"revision":"7ef08ce08b9d0400","lastChangedAt":"2026-10-05T03:54:38.488Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/KIAD/2026-10-04?format=record","status":"anchored","sha256":"5cf2a6302e965b9823d45954c9759a699b0cdc62fef33849ec60387e933bb30d","revision":"7ef08ce08b9d0400","flareTxHash":"0xd1d8135f065aace3f12626d8425249b64fbac4fa5bfbdc697ea2eaf26288475a","flareBlock":71360308,"anchoredAt":"2026-10-05T07:01:18.828Z","explorer":"https://flare-explorer.flare.network/tx/0xd1d8135f065aace3f12626d8425249b64fbac4fa5bfbdc697ea2eaf26288475a","matchesCurrent":true,"note":"GET the record bytes, SHA-256 them, and call SnapshotAnchor.isAnchored(sha256) on Flare - the anchored record is the one to settle on"},"qc":{"summary":{"good":41,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-04T19:18:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-04T05:52:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":17.8,"tmin":15.6,"differsFromRecord":false},"note":"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."},"official":{"status":"issued","tmax":17.78,"tmin":15.56,"precip":1.78,"corrected":false,"issuedAt":"2026-10-05T06:21:00.000Z","html":"https://weathermarket.io/nws-cli/KIAD/2026-10-04","json":"https://weathermarket.io/api/nws-cli/KIAD/2026-10-04"},"observations":[{"obsTimeUtc":"2026-10-04T04:52:00.000Z","obsTimeLocal":"2026-10-04T00:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 040452Z 00000KT 10SM -RA OVC018 16/14 A3024 RMK AO2 RAB35 SLP240 P0000 T01610144 402000139 $","temp":16.1,"dewpoint":14.4,"humidity":90,"wind":0,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T05:52:00.000Z","obsTimeLocal":"2026-10-04T01:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 040552Z 00000KT 5SM -RA BR BKN016 OVC024 16/14 A3023 RMK AO2 RAE10B28 SLP236 P0000 60000 T01560144 10161 20156 58009 $","temp":15.6,"dewpoint":14.4,"humidity":93,"wind":0,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T06:17:00.000Z","obsTimeLocal":"2026-10-04T02:17:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 040617Z 00000KT 4SM -RA BR OVC014 16/14 A3023 RMK AO2 P0001 T01560144 $","temp":15.6,"dewpoint":14.4,"humidity":93,"wind":0,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T06:52:00.000Z","obsTimeLocal":"2026-10-04T02:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 040652Z 02003KT 5SM -RA BR OVC012 16/14 A3022 RMK AO2 SLP231 P0002 T01560144 $","temp":15.6,"dewpoint":14.4,"humidity":93,"wind":1.5,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T07:13:00.000Z","obsTimeLocal":"2026-10-04T03:13:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 040713Z 01004KT 3SM -RA BR SCT008 OVC012 16/15 A3021 RMK AO2 P0001 T01560150 $","temp":15.6,"dewpoint":15,"humidity":96,"wind":2.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T07:23:00.000Z","obsTimeLocal":"2026-10-04T03:23:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 040723Z 02004KT 3SM -RA BR BKN008 OVC012 16/15 A3021 RMK AO2 P0001 T01560150 $","temp":15.6,"dewpoint":15,"humidity":96,"wind":2.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T07:52:00.000Z","obsTimeLocal":"2026-10-04T03:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 040752Z 02003KT 2 1/2SM -RA BR OVC007 16/15 A3020 RMK AO2 RAE32B52 SLP227 P0001 T01560150 $","temp":15.6,"dewpoint":15,"humidity":96,"wind":1.5,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T08:23:00.000Z","obsTimeLocal":"2026-10-04T04:23:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 040823Z 04003KT 3SM -RA BR OVC005 16/15 A3021 RMK AO2 P0001 T01560150 $","temp":15.6,"dewpoint":15,"humidity":96,"wind":1.5,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T08:52:00.000Z","obsTimeLocal":"2026-10-04T04:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 040852Z 00000KT 6SM BR SCT005 BKN010 OVC032 16/16 A3021 RMK AO2 RAE39 SLP227 P0002 60005 T01560156 55008 $","temp":15.6,"dewpoint":15.6,"humidity":100,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T09:09:00.000Z","obsTimeLocal":"2026-10-04T05:09:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 040909Z 08006KT 7SM -RA BKN007 BKN012 OVC027 16/15 A3019 RMK AO2 RAB02 P0000 T01560150 $","temp":15.6,"dewpoint":15,"humidity":96,"wind":3.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T09:52:00.000Z","obsTimeLocal":"2026-10-04T05:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 040952Z VRB05KT 10SM BKN010 OVC045 16/15 A3019 RMK AO2 RAB02E25 SLP224 P0000 T01560150 $","temp":15.6,"dewpoint":15,"humidity":96,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T10:27:00.000Z","obsTimeLocal":"2026-10-04T06:27:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041027Z VRB05KT 10SM BKN008 OVC012 16/15 A3019 RMK AO2 T01610150 $","temp":16.1,"dewpoint":15,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T10:52:00.000Z","obsTimeLocal":"2026-10-04T06:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041052Z 07008KT 10SM BKN008 OVC012 16/15 A3019 RMK AO2 SLP222 T01610150 $","temp":16.1,"dewpoint":15,"humidity":93,"wind":4.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T11:52:00.000Z","obsTimeLocal":"2026-10-04T07:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041152Z 05005KT 10SM BKN008 BKN012 OVC026 16/15 A3020 RMK AO2 SLP226 60005 70009 T01610150 10161 20156 55001 $","temp":16.1,"dewpoint":15,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T12:52:00.000Z","obsTimeLocal":"2026-10-04T08:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041252Z 07005KT 4SM -RA BR BKN008 OVC014 16/15 A3020 RMK AO2 RAB48 SLP227 P0000 T01560150 $","temp":15.6,"dewpoint":15,"humidity":96,"wind":2.6,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T13:09:00.000Z","obsTimeLocal":"2026-10-04T09:09:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041309Z 05005KT 2SM BR BKN009 BKN014 OVC024 16/15 A3020 RMK AO2 RAE07 P0001 T01560150 $","temp":15.6,"dewpoint":15,"humidity":96,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T13:52:00.000Z","obsTimeLocal":"2026-10-04T09:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041352Z 05005KT 3SM BR BKN008 OVC013 16/15 A3019 RMK AO2 RAE07 SLP223 P0001 T01610150 $","temp":16.1,"dewpoint":15,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T14:52:00.000Z","obsTimeLocal":"2026-10-04T10:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041452Z 05004KT 1 3/4SM BR OVC006 16/16 A3019 RMK AO2 SLP222 60001 T01610156 58004 $","temp":16.1,"dewpoint":15.6,"humidity":97,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T15:05:00.000Z","obsTimeLocal":"2026-10-04T11:05:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041505Z 06005KT 3SM BR BKN006 OVC011 16/16 A3019 RMK AO2 T01610156 $","temp":16.1,"dewpoint":15.6,"humidity":97,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T15:52:00.000Z","obsTimeLocal":"2026-10-04T11:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041552Z 04004KT 3SM BR OVC008 17/16 A3018 RMK AO2 SLP219 T01670156 $","temp":16.7,"dewpoint":15.6,"humidity":93,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T16:52:00.000Z","obsTimeLocal":"2026-10-04T12:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041652Z 07003KT 2 1/2SM BR OVC007 17/16 A3015 RMK AO2 SLP210 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T17:26:00.000Z","obsTimeLocal":"2026-10-04T13:26:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041726Z VRB05KT 3SM BR BKN008 OVC012 17/16 A3015 RMK AO2 VIS 1 1/2V3 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T17:45:00.000Z","obsTimeLocal":"2026-10-04T13:45:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041745Z 03005KT 1 3/4SM -RA BR BKN006 OVC012 17/16 A3014 RMK AO2 RAB40 VIS 1 1/2V3 P0000 T01670161 $","temp":16.7,"dewpoint":16.1,"humidity":96,"wind":2.6,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T17:52:00.000Z","obsTimeLocal":"2026-10-04T13:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041752Z 03005KT 2SM -RA BR BKN006 OVC012 17/16 A3014 RMK AO2 RAB40 SLP206 VIS 1 1/2V3 P0000 60001 T01670161 10172 20156 58016 $","temp":16.7,"dewpoint":16.1,"humidity":96,"wind":2.6,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T18:05:00.000Z","obsTimeLocal":"2026-10-04T14:05:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041805Z 06005KT 1 3/4SM BR FEW003 BKN006 OVC012 17/16 A3013 RMK AO2 RAE1753 VIS 1 1/2V3 P0000 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T18:47:00.000Z","obsTimeLocal":"2026-10-04T14:47:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041847Z 06004KT 4SM BR BKN006 BKN010 OVC020 17/16 A3012 RMK AO2 RAE1753 P0001 $","temp":17,"dewpoint":16,"humidity":94,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T18:52:00.000Z","obsTimeLocal":"2026-10-04T14:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041852Z 05004KT 5SM BR BKN006 BKN011 OVC020 17/16 A3011 RMK AO2 RAE1753 SLP196 P0001 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T19:18:00.000Z","obsTimeLocal":"2026-10-04T15:18:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 041918Z 03004KT 7SM SCT006 BKN012 OVC018 18/16 A3011 RMK AO2 T01780161 $","temp":17.8,"dewpoint":16.1,"humidity":90,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T19:52:00.000Z","obsTimeLocal":"2026-10-04T15:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 041952Z 03003KT 10SM SCT008 BKN012 OVC018 18/16 A3010 RMK AO2 SLP193 T01780161 $","temp":17.8,"dewpoint":16.1,"humidity":90,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T20:52:00.000Z","obsTimeLocal":"2026-10-04T16:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 042052Z 03004KT 10SM SCT008 BKN012 OVC018 18/16 A3010 RMK AO2 SLP190 60001 T01780161 58007 $","temp":17.8,"dewpoint":16.1,"humidity":90,"wind":2.1,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T21:52:00.000Z","obsTimeLocal":"2026-10-04T17:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 042152Z 05005KT 10SM SCT010 OVC016 17/16 A3009 RMK AO2 SLP188 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T22:15:00.000Z","obsTimeLocal":"2026-10-04T18:15:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 042215Z 05005KT 5SM -DZ BR FEW008 BKN010 OVC015 17/16 A3009 RMK AO2 DZB14 P0000 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":2.6,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T22:52:00.000Z","obsTimeLocal":"2026-10-04T18:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 042252Z 04004KT 6SM -DZ BR FEW008 BKN012 OVC015 17/16 A3009 RMK AO2 DZB14 SLP189 P0000 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":2.1,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T23:14:00.000Z","obsTimeLocal":"2026-10-04T19:14:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 042314Z 08003KT 5SM -DZ BR FEW005 BKN009 OVC015 17/16 A3009 RMK AO2 P0000 T01670161 $","temp":16.7,"dewpoint":16.1,"humidity":96,"wind":1.5,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-04T23:52:00.000Z","obsTimeLocal":"2026-10-04T19:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 042352Z 09003KT 4SM -DZ BR FEW005 BKN009 OVC018 17/16 A3009 RMK AO2 SLP190 P0000 60001 T01720161 10178 20167 56001 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":1.5,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T00:31:00.000Z","obsTimeLocal":"2026-10-04T20:31:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 050031Z 05003KT 7SM FEW005 SCT008 OVC016 17/16 A3010 RMK AO2 DZE30 P0000 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T00:52:00.000Z","obsTimeLocal":"2026-10-04T20:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 050052Z 03003KT 6SM BR FEW005 SCT008 OVC014 17/16 A3011 RMK AO2 DZE30 SLP196 P0000 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T01:08:00.000Z","obsTimeLocal":"2026-10-04T21:08:00-04:00","metarType":"SPECI","raw":"SPECI KIAD 050108Z 00000KT 5SM -DZ BR FEW005 BKN008 OVC014 17/16 A3011 RMK AO2 DZB54 VIS N-NE AND NW 2 P0000 T01720161 $","temp":17.2,"dewpoint":16.1,"humidity":93,"wind":0,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T01:52:00.000Z","obsTimeLocal":"2026-10-04T21:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 050152Z 32003KT 5SM -DZ BR SCT005 BKN008 OVC011 17/16 A3011 RMK AO2 SLP196 DZB54E30B41 VIS N-NE AND NW 2 P0000 T01670161 $","temp":16.7,"dewpoint":16.1,"humidity":96,"wind":1.5,"precipObserved":true,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T02:52:00.000Z","obsTimeLocal":"2026-10-04T22:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 050252Z 00000KT 5SM BR BKN005 BKN010 OVC020 17/16 A3011 RMK AO2 DZE0158 SLP194 P0000 60000 T01670161 50004 $","temp":16.7,"dewpoint":16.1,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-05T03:52:00.000Z","obsTimeLocal":"2026-10-04T23:52:00-04:00","metarType":"METAR","raw":"METAR KIAD 050352Z 00000KT 10SM FEW005 SCT010 OVC030 17/16 A3010 RMK AO2 SLP192 T01670161 $","temp":16.7,"dewpoint":16.1,"humidity":96,"wind":0,"precipObserved":false,"correctedAt":null,"originalRaw":null}],"about":{"record":"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.","settlementRule":"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.","verify":["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)."],"citation":"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/YYYY-MM-DD 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."},"links":{"html":"https://weathermarket.io/station/KIAD/2026-10-04","json":"https://weathermarket.io/api/station/KIAD/2026-10-04","record":"https://weathermarket.io/api/station/KIAD/2026-10-04?format=record","prev":"https://weathermarket.io/station/KIAD/2026-10-03","next":"https://weathermarket.io/station/KIAD/2026-10-05","station":"https://weathermarket.io/station/KIAD","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=IAD&data=metar&year1=2026&month1=10&day1=4&year2=2026&month2=10&day2=6&tz=Etc%2FUTC&format=onlycomma&latlon=no&elev=no&missing=M&trace=T&direct=no&report_type=3&report_type=4","ogimet":"https://www.ogimet.com/display_metars2.php?lang=en&lugar=KIAD&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=10&day=4&hora=4&anof=2026&mesf=10&dayf=5&horaf=3&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=KIAD"}}}