SmogRank / United States / Oklahoma / Miami
Miami, month by month
Miami, Oklahoma has a measured daily mean on 1,241 days since 1 January 2023. Its worst month was July 2026, at 66 US AQI (17.3 µg/m³), 412th of 2,784 cities on that month's world ranking. Its cleanest was November 2024, at 31 US AQI (5.6 µg/m³). 2025 averaged 51 US AQI (9.1 µg/m³), against 53 US AQI (10.0 µg/m³) in 2024.
Every month since 2023
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Months without a mean, and why
4 months
| Month | Why |
|---|---|
| Mar 2024 | 3 of 31 days measured; a month needs 22. The others: 26 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours), 1 missing from OpenAQ's archive. |
| Jul 2023 | 17 of 31 days measured; a month needs 22. The others: 12 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours), 1 missing from OpenAQ's archive. |
| Mar 2023 | 10 of 31 days measured; a month needs 22. The others: 1 with readings for part of the day (a day needs 18 hours), 20 missing from OpenAQ's archive. |
| Feb 2023 | 3 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Miami's worst months
| Month | US AQI | World rank |
|---|---|---|
| July 2026 | 6617.3 µg/m³ | 412thof 2,784 |
| August 2026 | 6516.5 µg/m³ | 337thof 2,896 |
| March 2026 | 6315.5 µg/m³ | 801stof 2,971 |
| August 2024 | 6214.9 µg/m³ | 182ndof 2,010 |
| July 2024 | 6014.0 µg/m³ | 225thof 2,566 |
| February 2026 | 6013.8 µg/m³ | 866thof 2,866 |
Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.
Miami's worst days
| Day | US AQI | Episode |
|---|---|---|
| 20 Mar 2026 | 15460.1 µg/m³ | – |
| 25 Mar 2026 | 13750.2 µg/m³ | – |
| 14 Mar 2025 | 12746.1 µg/m³ | United States and Mexico, March 2025 |
| 16 Jul 2023 | 10838.2 µg/m³ | – |
| 6 Sept 2023 | 9834.4 µg/m³ | Northern United States and Canada, August and September 2023 |
| 29 Jan 2026 | 9834.3 µg/m³ | Central United States, January 2026 |
| 13 Apr 2023 | 9734.0 µg/m³ | – |
| 2 Aug 2025 | 9633.0 µg/m³ | North-eastern United States and Canada, 29 July to 9 August 2025 |
| 24 Mar 2026 | 9331.9 µg/m³ | – |
| 30 Jun 2026 | 9331.5 µg/m³ | – |
Daily means, the highest since 1 Jan 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.
Use this history
SmogRank, PM2.5 monthly and daily means, Miami, Oklahoma, United States, 1 Jan 2023 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/miami-oklahoma/history (accessed 12 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Miami now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 17:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).