SmogRank / United States / Oklahoma / Tulsa
Tulsa, month by month
Tulsa has a measured daily mean on 1,215 days since 1 January 2023. Its worst month was July 2026, at 60 US AQI (13.8 µg/m³), 620th of 2,784 cities on that month's world ranking. Its cleanest was November 2024, at 29 US AQI (5.2 µg/m³). 2025 averaged 50 US AQI (9.0 µg/m³), against 48 US AQI (8.6 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 |
|---|---|
| Feb 2026 | 1 of 28 days measured; a month needs 20. The others: 27 with under 18 hours of readings or readings that failed our checks. |
| Jan 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 10 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive, 1 with under 18 hours of readings or readings that failed our checks. |
| 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.
Tulsa's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| July 2026 | 6013.8 µg/m³ | 620thof 2,784 | – |
| September 2023 | 5812.8 µg/m³ | 271stof 2,176 | Northern United States and Canada, August and September 2023 |
| August 2023 | 5712.3 µg/m³ | 311thof 1,980 | Northern United States and Canada, August and September 2023 |
| August 2026 | 5712.3 µg/m³ | 531stof 2,896 | – |
| June 2023 | 5712.2 µg/m³ | 537thof 1,603 | – |
| March 2025 | 5712.2 µg/m³ | 1,208thof 2,862 | United States and Mexico, March 2025 Eastern United States, March 2025 |
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.
Tulsa's worst days
| Day | US AQI | Episode |
|---|---|---|
| 14 Mar 2025 | 15560.9 µg/m³ | United States and Mexico, March 2025 |
| 1 Apr 2023 | 10938.7 µg/m³ | – |
| 5 Apr 2024 | 10838.4 µg/m³ | Oklahoma and Kansas, United States, April 2024 |
| 15 Mar 2025 | 10436.8 µg/m³ | United States and Mexico, March 2025 Eastern United States, March 2025 |
| 7 Sept 2023 | 9934.8 µg/m³ | Northern United States and Canada, August and September 2023 |
| 1 Aug 2024 | 8628.0 µg/m³ | Southern and eastern United States and Mexico, July and August 2024 |
| 25 Dec 2024 | 8427.0 µg/m³ | – |
| 30 Jun 2026 | 8225.7 µg/m³ | – |
| 28 Feb 2026 | 8125.4 µg/m³ | – |
| 20 Mar 2026 | 8024.7 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, Tulsa, 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/tulsa/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.
Tulsa now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 18:07 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).