SmogRank / United States / Oklahoma / McAlester
McAlester, month by month
McAlester has a measured daily mean on 1,266 days since 1 January 2023. Its worst month was February 2026, at 61 US AQI (14.4 µg/m³), 815th of 2,866 cities on that month's world ranking. Its cleanest was January 2024, at 29 US AQI (5.2 µg/m³). 2025 averaged 49 US AQI (8.9 µg/m³), against 49 US AQI (8.9 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
3 months
| Month | Why |
|---|---|
| Dec 2023 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 11 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive. |
| Feb 2023 | 2 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive, 1 with under 18 hours of readings or readings that failed our checks. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
McAlester's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| February 2026 | 6114.4 µg/m³ | 815thof 2,866 | – |
| January 2026 | 5812.8 µg/m³ | 886thof 2,617 | Central United States, January 2026 |
| August 2024 | 5812.6 µg/m³ | 283rdof 2,010 | Southern and eastern United States and Mexico, July and August 2024 |
| February 2025 | 5812.6 µg/m³ | 980thof 2,633 | – |
| July 2026 | 5612.0 µg/m³ | 900thof 2,784 | – |
| December 2025 | 5611.7 µg/m³ | 1,008thof 3,006 | – |
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.
McAlester's worst days
| Day | US AQI | Episode |
|---|---|---|
| 2 Mar 2025 | 14051.4 µg/m³ | – |
| 14 Mar 2025 | 12846.5 µg/m³ | United States and Mexico, March 2025 |
| 28 Feb 2025 | 12344.5 µg/m³ | – |
| 28 Jan 2026 | 10436.9 µg/m³ | Central United States, January 2026 |
| 1 Aug 2024 | 10236.0 µg/m³ | Southern and eastern United States and Mexico, July and August 2024 |
| 13 Dec 2025 | 9934.6 µg/m³ | – |
| 15 Mar 2025 | 9834.2 µg/m³ | United States and Mexico, March 2025 Eastern United States, March 2025 |
| 9 Feb 2026 | 9532.5 µg/m³ | – |
| 29 Jan 2026 | 9030.1 µg/m³ | Central United States, January 2026 |
| 25 Mar 2025 | 8828.8 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, McAlester, 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/mcalester/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.
McAlester now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 21:07 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).