SmogRank / United States / Ohio / Cleveland Heights
Cleveland Heights, month by month
Cleveland Heights has a measured daily mean on 1,099 days since 21 September 2023. Its worst month was July 2026, at 79 US AQI (23.9 µg/m³), 237th of 3,035 cities on that month's world ranking. Its cleanest was October 2025, at 22 US AQI (3.9 µg/m³). 2025 averaged 39 US AQI (7.1 µg/m³), against 36 US AQI (6.4 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
1 month
| Month | Why |
|---|---|
| Sep 2023 | 9 of 30 days measured; a month needs 21. The others: 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.
Cleveland Heights's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| July 2026 | 7923.9 µg/m³ | 237thof 3,035 | Northern United States and Canada, July 2026 North-eastern United States, June and July 2026 |
| June 2025 | 5511.4 µg/m³ | 1,015thof 3,112 | Northern United States and Canada, May and June 2025 |
| July 2025 | 5511.0 µg/m³ | 1,081stof 3,073 | North-eastern United States and Canada, 29 July to 9 August 2025 Northern United States and Canada, July 2025 |
| August 2025 | 5310.4 µg/m³ | 1,195thof 3,095 | North-eastern United States and Canada, 29 July to 9 August 2025 |
| February 2026 | 5310.3 µg/m³ | 1,487thof 3,180 | – |
| August 2026 | 478.4 µg/m³ | 1,514thof 3,210 | – |
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.
Cleveland Heights's worst days
| Day | US AQI | Episode |
|---|---|---|
| 16 Jul 2026 | 250175.0 µg/m³ | Northern United States and Canada, July 2026 |
| 17 Jul 2026 | 230155.0 µg/m³ | Northern United States and Canada, July 2026 |
| 18 Jul 2026 | 11139.5 µg/m³ | Northern United States and Canada, July 2026 |
| 19 Jul 2026 | 9935.1 µg/m³ | Northern United States and Canada, July 2026 |
| 4 Aug 2025 | 9834.3 µg/m³ | North-eastern United States and Canada, 29 July to 9 August 2025 |
| 20 Jul 2026 | 9130.7 µg/m³ | Northern United States and Canada, July 2026 |
| 15 Jul 2025 | 8728.4 µg/m³ | Northern United States and Canada, July 2025 |
| 7 Jun 2025 | 8728.2 µg/m³ | Northern United States and Canada, May and June 2025 |
| 31 Jul 2025 | 8225.9 µg/m³ | North-eastern United States and Canada, 29 July to 9 August 2025 |
| 1 Jul 2026 | 8225.5 µg/m³ | North-eastern United States, June and July 2026 |
Daily means, the highest since 21 Sept 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, Cleveland Heights, United States, 21 Sep 2023 – 12 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/cleveland-heights/history (accessed 14 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.
Cleveland Heights now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-14 02:07 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).